Enable multi-platform docker builds

Update compatibility matrix
Improved concurrency handling
2026-01-08 12:05:18 +00:00 · 2024-12-08 18:55:20 +02:00 · 2024-12-08 18:17:37 +02:00 · 2024-12-08 17:54:58 +02:00 · 2024-12-07 22:29:26 +02:00 · 2024-11-16 20:09:24 +02:00
50 changed files with 8010 additions and 1718 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,6 @@
 dist/
 ignored/
+explorer_www/
+main
+save.json
+.vscode/
--- a/.goreleaser.yaml
+++ b/.goreleaser.yaml
@@ -9,11 +9,6 @@ builds:
      - arm64
    env:
      - CGO_ENABLED=0
-    ignore:
-      - goos: linux
-        goarch: arm64
-      - goos: windows
-        goarch: arm64

 release:
  prerelease: auto
@@ -32,11 +27,14 @@ brews:
      email: git@pikami.org

 dockers:
-  - image_templates:
-    - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}"
-    - "ghcr.io/pikami/{{ .ProjectName }}:latest"
+  - id: docker-linux-amd64
+    goos: linux
+    goarch: amd64
+    image_templates:
+    - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}-amd64"
+    - "ghcr.io/pikami/{{ .ProjectName }}:latest-amd64"
    dockerfile: Dockerfile
-    use: docker
+    use: buildx
    build_flag_templates:
    - "--platform=linux/amd64"
    - "--pull"
@@ -47,6 +45,38 @@ dockers:
    - "--label=org.opencontainers.image.created={{.Date}}"
    - "--label=org.opencontainers.image.revision={{.FullCommit}}"
    - "--label=org.opencontainers.image.version={{.Version}}"
+  - id: docker-linux-arm64
+    goos: linux
+    goarch: arm64
+    image_templates:
+    - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}-arm64"
+    - "ghcr.io/pikami/{{ .ProjectName }}:latest-arm64"
+    - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}-arm64v8"
+    - "ghcr.io/pikami/{{ .ProjectName }}:latest-arm64v8"
+    dockerfile: Dockerfile
+    use: buildx
+    build_flag_templates:
+    - "--platform=linux/arm64"
+    - "--pull"
+    - "--label=org.opencontainers.image.title={{.ProjectName}}"
+    - "--label=org.opencontainers.image.description=Lightweight Cosmos DB emulator"
+    - "--label=org.opencontainers.image.url=https://github.com/pikami/cosmium"
+    - "--label=org.opencontainers.image.source=https://github.com/pikami/cosmium"
+    - "--label=org.opencontainers.image.created={{.Date}}"
+    - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+    - "--label=org.opencontainers.image.version={{.Version}}"
+
+docker_manifests:
+  - name_template: 'ghcr.io/pikami/{{ .ProjectName }}:latest'
+    image_templates:
+      - "ghcr.io/pikami/{{ .ProjectName }}:latest-amd64"
+      - "ghcr.io/pikami/{{ .ProjectName }}:latest-arm64"
+      - "ghcr.io/pikami/{{ .ProjectName }}:latest-arm64v8"
+  - name_template: 'ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}'
+    image_templates:
+      - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}-amd64"
+      - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}-arm64"
+      - "ghcr.io/pikami/{{ .ProjectName }}:{{ .Version }}-arm64v8"

 checksum:
  name_template: 'checksums.txt'
--- a/README.md
+++ b/README.md
@@ -1,11 +1,13 @@
 # Cosmium

-Cosmium is a lightweight Cosmos DB emulator designed to facilitate local development and testing. While it aims to provide developers with a solution for running a local database during development, it's important to note that it's not 100% compatible with Cosmos DB. However, it serves as a convenient tool for E2E or integration tests during the CI/CD pipeline. Read more about compatibility [here](docs/compatibility.md).
+Cosmium is a lightweight Cosmos DB emulator designed to facilitate local development and testing. While it aims to provide developers with a solution for running a local database during development, it's important to note that it's not 100% compatible with Cosmos DB. However, it serves as a convenient tool for E2E or integration tests during the CI/CD pipeline. Read more about compatibility [here](./docs/COMPATIBILITY.md).

 One of Cosmium's notable features is its ability to save and load state to a single JSON file. This feature makes it easy to load different test cases or share state with other developers, enhancing collaboration and efficiency in development workflows.

 # Getting Started
+
 ### Installation via Homebrew
+
 You can install Cosmium using Homebrew by adding the `pikami/brew` tap and then installing the package.

 ```sh
@@ -23,10 +25,10 @@ You can download the latest version of Cosmium from the [GitHub Releases page](h

 Cosmium is available for the following platforms:

-* **Linux**: cosmium-linux-amd64
-* **macOS**: cosmium-darwin-amd64
-* **macOS on Apple Silicon**: cosmium-darwin-arm64
-* **Windows**: cosmium-windows-amd64.exe
+- **Linux**: cosmium-linux-amd64
+- **macOS**: cosmium-darwin-amd64
+- **macOS on Apple Silicon**: cosmium-darwin-arm64
+- **Windows**: cosmium-windows-amd64.exe

 ### Running Cosmium

@@ -37,11 +39,12 @@ cosmium -Persist "./save.json"
 ```

 Connection String Example:
+
 ```
 AccountEndpoint=https://localhost:8081/;AccountKey=C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==;
 ```

-###  Running Cosmos DB Explorer
+### Running Cosmos DB Explorer

 If you want to run Cosmos DB Explorer alongside Cosmium, you'll need to build it yourself and point the `-ExplorerDir` argument to the dist directory. Please refer to the [Cosmos DB Explorer repository](https://github.com/Azure/cosmos-explorer) for instructions on building the application.

@@ -50,9 +53,10 @@ Once running, the explorer can be reached by navigating following URL: `https://
 ### Running with docker (optional)

 If you wan to run the application using docker, configure it using environment variables see example:
+
 ```sh
 docker run --rm \
-  -e Persist=/save.json \
+  -e COSMIUM_PERSIST=/save.json \
  -v ./save.json:/save.json \
  -p 8081:8081 \
  ghcr.io/pikami/cosmium
@@ -66,24 +70,26 @@ To disable SSL and run Cosmium on HTTP instead, you can use the `-DisableTls` fl

 ### Other Available Arguments

-* **-AccountKey**: Account key for authentication (default "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==")
-* **-DisableAuth**: Disable authentication
-* **-Host**: Hostname (default "localhost")
-* **-InitialData**: Path to JSON containing initial state
-* **-Persist**: Saves data to the given path on application exit (When `-InitialData` argument is not supplied, it will try to load data from path supplied in `-Persist`)
-* **-Port**: Listen port (default 8081)
-* **-Debug**: Runs application in debug mode, this provides additional logging
+- **-AccountKey**: Account key for authentication (default "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw==")
+- **-DisableAuth**: Disable authentication
+- **-Host**: Hostname (default "localhost")
+- **-InitialData**: Path to JSON containing initial state
+- **-Persist**: Saves data to the given path on application exit (When `-InitialData` argument is not supplied, it will try to load data from path supplied in `-Persist`)
+- **-Port**: Listen port (default 8081)
+- **-Debug**: Runs application in debug mode, this provides additional logging

 These arguments allow you to configure various aspects of Cosmium's behavior according to your requirements.

 All mentioned arguments can also be set using environment variables:
-* **COSMIUM_ACCOUNTKEY** for `-AccountKey`
-* **COSMIUM_DISABLEAUTH** for `-DisableAuth`
-* **COSMIUM_HOST** for `-Host`
-* **COSMIUM_INITIALDATA** for `-InitialData`
-* **COSMIUM_PERSIST** for `-Persist`
-* **COSMIUM_PORT** for `-Port`
-* **COSMIUM_DEBUG** for `-Debug`
+
+- **COSMIUM_ACCOUNTKEY** for `-AccountKey`
+- **COSMIUM_DISABLEAUTH** for `-DisableAuth`
+- **COSMIUM_HOST** for `-Host`
+- **COSMIUM_INITIALDATA** for `-InitialData`
+- **COSMIUM_PERSIST** for `-Persist`
+- **COSMIUM_PORT** for `-Port`
+- **COSMIUM_DEBUG** for `-Debug`

 # License
+
 This project is [MIT licensed](./LICENSE).
--- a/api/config/config.go
+++ b/api/config/config.go
@@ -8,8 +8,9 @@ import (
 )

 const (
-	DefaultAccountKey = "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
-	EnvPrefix         = "COSMIUM_"
+	DefaultAccountKey       = "C2y6yDjf5/R+ob0N8A7Cgv30VRDJIWEHLM+4QDU5DE2nQ9nDuVTqobD4b8mGGyPMbIZnqyMsEcaGQy67XIw/Jw=="
+	EnvPrefix               = "COSMIUM_"
+	ExplorerBaseUrlLocation = "/_explorer"
 )

 var Config = ServerConfig{}
@@ -45,6 +46,7 @@ func ParseFlags() {
 	Config.DatabaseDomain = Config.Host
 	Config.DatabaseEndpoint = fmt.Sprintf("https://%s:%d/", Config.Host, Config.Port)
 	Config.AccountKey = *accountKey
+	Config.ExplorerBaseUrlLocation = ExplorerBaseUrlLocation
 }

 func setFlagsFromEnvironment() (err error) {
--- a/api/config/models.go
+++ b/api/config/models.go
@@ -6,14 +6,15 @@ type ServerConfig struct {
 	DatabaseEndpoint string
 	AccountKey       string

-	ExplorerPath        string
-	Port                int
-	Host                string
-	TLS_CertificatePath string
-	TLS_CertificateKey  string
-	InitialDataFilePath string
-	PersistDataFilePath string
-	DisableAuth         bool
-	DisableTls          bool
-	Debug               bool
+	ExplorerPath            string
+	Port                    int
+	Host                    string
+	TLS_CertificatePath     string
+	TLS_CertificateKey      string
+	InitialDataFilePath     string
+	PersistDataFilePath     string
+	DisableAuth             bool
+	DisableTls              bool
+	Debug                   bool
+	ExplorerBaseUrlLocation string
 }
--- a/api/handlers/collections.go
+++ b/api/handlers/collections.go
@@ -1,6 +1,7 @@
 package handlers

 import (
+	"fmt"
 	"net/http"

 	"github.com/gin-gonic/gin"
@@ -15,6 +16,7 @@ func GetAllCollections(c *gin.Context) {
 	if status == repositorymodels.StatusOk {
 		database, _ := repositories.GetDatabase(databaseId)

+		c.Header("x-ms-item-count", fmt.Sprintf("%d", len(collections)))
 		c.IndentedJSON(http.StatusOK, gin.H{
 			"_rid":                database.ResourceID,
 			"DocumentCollections": collections,
--- a/api/handlers/cosmium.go
+++ b/api/handlers/cosmium.go
@@ -8,5 +8,11 @@ import (
 )

 func CosmiumExport(c *gin.Context) {
-	c.IndentedJSON(http.StatusOK, repositories.GetState())
+	repositoryState, err := repositories.GetState()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.Data(http.StatusOK, "application/json", []byte(repositoryState))
 }
--- a/api/handlers/databases.go
+++ b/api/handlers/databases.go
@@ -1,6 +1,7 @@
 package handlers

 import (
+	"fmt"
 	"net/http"

 	"github.com/gin-gonic/gin"
@@ -11,6 +12,7 @@ import (
 func GetAllDatabases(c *gin.Context) {
 	databases, status := repositories.GetAllDatabases()
 	if status == repositorymodels.StatusOk {
+		c.Header("x-ms-item-count", fmt.Sprintf("%d", len(databases)))
 		c.IndentedJSON(http.StatusOK, gin.H{
 			"_rid":      "",
 			"Databases": databases,
--- a/api/handlers/documents.go
+++ b/api/handlers/documents.go
@@ -1,10 +1,15 @@
 package handlers

 import (
+	"encoding/json"
+	"fmt"
 	"net/http"
+	"strconv"

+	jsonpatch "github.com/evanphx/json-patch/v5"
 	"github.com/gin-gonic/gin"
 	"github.com/pikami/cosmium/internal/constants"
+	"github.com/pikami/cosmium/internal/logger"
 	"github.com/pikami/cosmium/internal/repositories"
 	repositorymodels "github.com/pikami/cosmium/internal/repository_models"
 )
@@ -17,6 +22,7 @@ func GetAllDocuments(c *gin.Context) {
 	if status == repositorymodels.StatusOk {
 		collection, _ := repositories.GetCollection(databaseId, collectionId)

+		c.Header("x-ms-item-count", fmt.Sprintf("%d", len(documents)))
 		c.IndentedJSON(http.StatusOK, gin.H{
 			"_rid":      collection.ID,
 			"Documents": documents,
@@ -98,6 +104,82 @@ func ReplaceDocument(c *gin.Context) {
 	c.IndentedJSON(http.StatusInternalServerError, gin.H{"message": "Unknown error"})
 }

+func PatchDocument(c *gin.Context) {
+	databaseId := c.Param("databaseId")
+	collectionId := c.Param("collId")
+	documentId := c.Param("docId")
+
+	document, status := repositories.GetDocument(databaseId, collectionId, documentId)
+	if status == repositorymodels.StatusNotFound {
+		c.IndentedJSON(http.StatusNotFound, gin.H{"message": "NotFound"})
+		return
+	}
+
+	var requestBody map[string]interface{}
+	if err := c.BindJSON(&requestBody); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"message": err.Error()})
+		return
+	}
+
+	operations := requestBody["operations"]
+	operationsBytes, err := json.Marshal(operations)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"message": "Could not decode operations"})
+		return
+	}
+
+	patch, err := jsonpatch.DecodePatch(operationsBytes)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"message": err.Error()})
+		return
+	}
+
+	currentDocumentBytes, err := json.Marshal(document)
+	if err != nil {
+		logger.Error("Failed to marshal existing document:", err)
+		c.JSON(http.StatusInternalServerError, gin.H{"message": "Failed to marshal existing document"})
+		return
+	}
+
+	modifiedDocumentBytes, err := patch.Apply(currentDocumentBytes)
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"message": err.Error()})
+		return
+	}
+
+	var modifiedDocument map[string]interface{}
+	err = json.Unmarshal(modifiedDocumentBytes, &modifiedDocument)
+	if err != nil {
+		logger.Error("Failed to unmarshal modified document:", err)
+		c.JSON(http.StatusInternalServerError, gin.H{"message": "Failed to unmarshal modified document"})
+		return
+	}
+
+	if modifiedDocument["id"] != document["id"] {
+		c.JSON(http.StatusUnprocessableEntity, gin.H{"message": "The ID field cannot be modified"})
+		return
+	}
+
+	status = repositories.DeleteDocument(databaseId, collectionId, documentId)
+	if status == repositorymodels.StatusNotFound {
+		c.IndentedJSON(http.StatusNotFound, gin.H{"message": "NotFound"})
+		return
+	}
+
+	createdDocument, status := repositories.CreateDocument(databaseId, collectionId, modifiedDocument)
+	if status == repositorymodels.Conflict {
+		c.IndentedJSON(http.StatusConflict, gin.H{"message": "Conflict"})
+		return
+	}
+
+	if status == repositorymodels.StatusOk {
+		c.IndentedJSON(http.StatusCreated, createdDocument)
+		return
+	}
+
+	c.IndentedJSON(http.StatusInternalServerError, gin.H{"message": "Unknown error"})
+}
+
 func DocumentsPost(c *gin.Context) {
 	databaseId := c.Param("databaseId")
 	collectionId := c.Param("collId")
@@ -128,6 +210,7 @@ func DocumentsPost(c *gin.Context) {
 		}

 		collection, _ := repositories.GetCollection(databaseId, collectionId)
+		c.Header("x-ms-item-count", fmt.Sprintf("%d", len(docs)))
 		c.IndentedJSON(http.StatusOK, gin.H{
 			"_rid":      collection.ResourceID,
 			"Documents": docs,
@@ -141,6 +224,11 @@ func DocumentsPost(c *gin.Context) {
 		return
 	}

+	isUpsert, _ := strconv.ParseBool(c.GetHeader("x-ms-documentdb-is-upsert"))
+	if isUpsert {
+		repositories.DeleteDocument(databaseId, collectionId, requestBody["id"].(string))
+	}
+
 	createdDocument, status := repositories.CreateDocument(databaseId, collectionId, requestBody)
 	if status == repositorymodels.Conflict {
 		c.IndentedJSON(http.StatusConflict, gin.H{"message": "Conflict"})
--- a/api/handlers/explorer.go
+++ b/api/handlers/explorer.go
@@ -8,7 +8,7 @@ import (
 )

 func RegisterExplorerHandlers(router *gin.Engine) {
-	explorer := router.Group("/_explorer")
+	explorer := router.Group(config.Config.ExplorerBaseUrlLocation)
 	{
 		explorer.Use(func(ctx *gin.Context) {
 			if ctx.Param("filepath") == "/config.json" {
--- a/api/handlers/middleware/authentication.go
+++ b/api/handlers/middleware/authentication.go
@@ -14,35 +14,13 @@ func Authentication() gin.HandlerFunc {
 	return func(c *gin.Context) {
 		requestUrl := c.Request.URL.String()
 		if config.Config.DisableAuth ||
-			strings.HasPrefix(requestUrl, "/_explorer") ||
+			strings.HasPrefix(requestUrl, config.Config.ExplorerBaseUrlLocation) ||
 			strings.HasPrefix(requestUrl, "/cosmium") {
 			return
 		}

-		var resourceType string
-		parts := strings.Split(requestUrl, "/")
-		switch len(parts) {
-		case 2, 3:
-			resourceType = parts[1]
-		case 4, 5:
-			resourceType = parts[3]
-		case 6, 7:
-			resourceType = parts[5]
-		}
-
-		databaseId, _ := c.Params.Get("databaseId")
-		collId, _ := c.Params.Get("collId")
-		docId, _ := c.Params.Get("docId")
-		var resourceId string
-		if databaseId != "" {
-			resourceId += "dbs/" + databaseId
-		}
-		if collId != "" {
-			resourceId += "/colls/" + collId
-		}
-		if docId != "" {
-			resourceId += "/docs/" + docId
-		}
+		resourceType := urlToResourceType(requestUrl)
+		resourceId := requestToResourceId(c)

 		authHeader := c.Request.Header.Get("authorization")
 		date := c.Request.Header.Get("x-ms-date")
@@ -62,3 +40,43 @@ func Authentication() gin.HandlerFunc {
 		}
 	}
 }
+
+func urlToResourceType(requestUrl string) string {
+	var resourceType string
+	parts := strings.Split(requestUrl, "/")
+	switch len(parts) {
+	case 2, 3:
+		resourceType = parts[1]
+	case 4, 5:
+		resourceType = parts[3]
+	case 6, 7:
+		resourceType = parts[5]
+	}
+
+	return resourceType
+}
+
+func requestToResourceId(c *gin.Context) string {
+	databaseId, _ := c.Params.Get("databaseId")
+	collId, _ := c.Params.Get("collId")
+	docId, _ := c.Params.Get("docId")
+	resourceType := urlToResourceType(c.Request.URL.String())
+
+	var resourceId string
+	if databaseId != "" {
+		resourceId += "dbs/" + databaseId
+	}
+	if collId != "" {
+		resourceId += "/colls/" + collId
+	}
+	if docId != "" {
+		resourceId += "/docs/" + docId
+	}
+
+	isFeed := c.Request.Header.Get("A-Im") == "Incremental Feed"
+	if resourceType == "pkranges" && isFeed {
+		resourceId = collId
+	}
+
+	return resourceId
+}
--- a/api/handlers/middleware/strip_trailing_slashes.go
+++ b/api/handlers/middleware/strip_trailing_slashes.go
@@ -0,0 +1,21 @@
+package middleware
+
+import (
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/pikami/cosmium/api/config"
+)
+
+func StripTrailingSlashes(r *gin.Engine) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		path := c.Request.URL.Path
+		if len(path) > 1 && path[len(path)-1] == '/' && !strings.Contains(path, config.Config.ExplorerBaseUrlLocation) {
+			c.Request.URL.Path = path[:len(path)-1]
+			r.HandleContext(c)
+			c.Abort()
+			return
+		}
+		c.Next()
+	}
+}
--- a/api/handlers/offers.go
+++ b/api/handlers/offers.go
@@ -7,6 +7,7 @@ import (
 )

 func GetOffers(c *gin.Context) {
+	c.Header("x-ms-item-count", "0")
 	c.IndentedJSON(http.StatusOK, gin.H{
 		"_rid":   "",
 		"_count": 0,
--- a/api/handlers/stored_procedures.go
+++ b/api/handlers/stored_procedures.go
@@ -1,6 +1,7 @@
 package handlers

 import (
+	"fmt"
 	"net/http"

 	"github.com/gin-gonic/gin"
@@ -15,6 +16,7 @@ func GetAllStoredProcedures(c *gin.Context) {
 	sps, status := repositories.GetAllStoredProcedures(databaseId, collectionId)

 	if status == repositorymodels.StatusOk {
+		c.Header("x-ms-item-count", fmt.Sprintf("%d", len(sps)))
 		c.IndentedJSON(http.StatusOK, gin.H{"_rid": "", "StoredProcedures": sps, "_count": len(sps)})
 		return
 	}
--- a/api/handlers/triggers.go
+++ b/api/handlers/triggers.go
@@ -1,6 +1,7 @@
 package handlers

 import (
+	"fmt"
 	"net/http"

 	"github.com/gin-gonic/gin"
@@ -15,6 +16,7 @@ func GetAllTriggers(c *gin.Context) {
 	triggers, status := repositories.GetAllTriggers(databaseId, collectionId)

 	if status == repositorymodels.StatusOk {
+		c.Header("x-ms-item-count", fmt.Sprintf("%d", len(triggers)))
 		c.IndentedJSON(http.StatusOK, gin.H{"_rid": "", "Triggers": triggers, "_count": len(triggers)})
 		return
 	}
--- a/api/handlers/user_defined_functions.go
+++ b/api/handlers/user_defined_functions.go
@@ -1,6 +1,7 @@
 package handlers

 import (
+	"fmt"
 	"net/http"

 	"github.com/gin-gonic/gin"
@@ -15,6 +16,7 @@ func GetAllUserDefinedFunctions(c *gin.Context) {
 	udfs, status := repositories.GetAllUserDefinedFunctions(databaseId, collectionId)

 	if status == repositorymodels.StatusOk {
+		c.Header("x-ms-item-count", fmt.Sprintf("%d", len(udfs)))
 		c.IndentedJSON(http.StatusOK, gin.H{"_rid": "", "UserDefinedFunctions": udfs, "_count": len(udfs)})
 		return
 	}
--- a/api/router.go
+++ b/api/router.go
@@ -13,12 +13,15 @@ import (
 )

 func CreateRouter() *gin.Engine {
-	router := gin.Default()
+	router := gin.Default(func(e *gin.Engine) {
+		e.RedirectTrailingSlash = false
+	})

 	if config.Config.Debug {
 		router.Use(middleware.RequestLogger())
 	}

+	router.Use(middleware.StripTrailingSlashes(router))
 	router.Use(middleware.Authentication())

 	router.GET("/dbs/:databaseId/colls/:collId/pkranges", handlers.GetPartitionKeyRanges)
@@ -27,6 +30,7 @@ func CreateRouter() *gin.Engine {
 	router.GET("/dbs/:databaseId/colls/:collId/docs", handlers.GetAllDocuments)
 	router.GET("/dbs/:databaseId/colls/:collId/docs/:docId", handlers.GetDocument)
 	router.PUT("/dbs/:databaseId/colls/:collId/docs/:docId", handlers.ReplaceDocument)
+	router.PATCH("/dbs/:databaseId/colls/:collId/docs/:docId", handlers.PatchDocument)
 	router.DELETE("/dbs/:databaseId/colls/:collId/docs/:docId", handlers.DeleteDocument)

 	router.POST("/dbs/:databaseId/colls", handlers.CreateCollection)
--- a/api/tests/config_test.go
+++ b/api/tests/config_test.go
@@ -10,6 +10,7 @@ import (
 func runTestServer() *httptest.Server {
 	config.Config.AccountKey = config.DefaultAccountKey
 	config.Config.ExplorerPath = "/tmp/nothing"
+	config.Config.ExplorerBaseUrlLocation = config.ExplorerBaseUrlLocation

 	return httptest.NewServer(api.CreateRouter())
 }
--- a/api/tests/documents_test.go
+++ b/api/tests/documents_test.go
@@ -3,10 +3,16 @@ package tests_test
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
+	"net/http"
+	"net/http/httptest"
 	"reflect"
+	"sync"
 	"testing"
+	"time"

+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
 	"github.com/Azure/azure-sdk-for-go/sdk/data/azcosmos"
 	"github.com/pikami/cosmium/api/config"
 	"github.com/pikami/cosmium/internal/repositories"
@@ -49,7 +55,7 @@ func testCosmosQuery(t *testing.T,
 	}
 }

-func Test_Documents(t *testing.T) {
+func documents_InitializeDb(t *testing.T) (*httptest.Server, *azcosmos.ContainerClient) {
 	repositories.CreateDatabase(repositorymodels.Database{ID: testDatabaseName})
 	repositories.CreateCollection(testDatabaseName, repositorymodels.Collection{
 		ID: testCollectionName,
@@ -61,11 +67,10 @@ func Test_Documents(t *testing.T) {
 			Paths: []string{"/pk"},
 		},
 	})
-	repositories.CreateDocument(testDatabaseName, testCollectionName, map[string]interface{}{"id": "12345", "pk": "123", "isCool": false})
-	repositories.CreateDocument(testDatabaseName, testCollectionName, map[string]interface{}{"id": "67890", "pk": "456", "isCool": true})
+	repositories.CreateDocument(testDatabaseName, testCollectionName, map[string]interface{}{"id": "12345", "pk": "123", "isCool": false, "arr": []int{1, 2, 3}})
+	repositories.CreateDocument(testDatabaseName, testCollectionName, map[string]interface{}{"id": "67890", "pk": "456", "isCool": true, "arr": []int{6, 7, 8}})

 	ts := runTestServer()
-	defer ts.Close()

 	client, err := azcosmos.NewClientFromConnectionString(
 		fmt.Sprintf("AccountEndpoint=%s;AccountKey=%s", ts.URL, config.Config.AccountKey),
@@ -76,6 +81,13 @@ func Test_Documents(t *testing.T) {
 	collectionClient, err := client.NewContainer(testDatabaseName, testCollectionName)
 	assert.Nil(t, err)

+	return ts, collectionClient
+}
+
+func Test_Documents(t *testing.T) {
+	ts, collectionClient := documents_InitializeDb(t)
+	defer ts.Close()
+
 	t.Run("Should query document", func(t *testing.T) {
 		testCosmosQuery(t, collectionClient,
 			"SELECT c.id, c[\"pk\"] FROM c ORDER BY c.id",
@@ -136,4 +148,216 @@ func Test_Documents(t *testing.T) {
 			},
 		)
 	})
+
+	t.Run("Should query array accessor", func(t *testing.T) {
+		testCosmosQuery(t, collectionClient,
+			`SELECT c.id,
+				c["arr"][0] AS arr0,
+				c["arr"][1] AS arr1,
+				c["arr"][2] AS arr2,
+				c["arr"][3] AS arr3
+			FROM c ORDER BY c.id`,
+			nil,
+			[]interface{}{
+				map[string]interface{}{"id": "12345", "arr0": 1.0, "arr1": 2.0, "arr2": 3.0, "arr3": nil},
+				map[string]interface{}{"id": "67890", "arr0": 6.0, "arr1": 7.0, "arr2": 8.0, "arr3": nil},
+			},
+		)
+	})
+
+	t.Run("Should handle parallel writes", func(t *testing.T) {
+		var wg sync.WaitGroup
+		rutineCount := 100
+		results := make(chan error, rutineCount)
+
+		createCall := func(i int) {
+			defer wg.Done()
+			item := map[string]interface{}{
+				"id":  fmt.Sprintf("id-%d", i),
+				"pk":  fmt.Sprintf("pk-%d", i),
+				"val": i,
+			}
+			bytes, err := json.Marshal(item)
+			if err != nil {
+				results <- err
+				return
+			}
+
+			ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+			defer cancel()
+
+			_, err = collectionClient.CreateItem(
+				ctx,
+				azcosmos.PartitionKey{},
+				bytes,
+				&azcosmos.ItemOptions{
+					EnableContentResponseOnWrite: false,
+				},
+			)
+			results <- err
+
+			collectionClient.ReadItem(ctx, azcosmos.PartitionKey{}, fmt.Sprintf("id-%d", i), nil)
+			collectionClient.DeleteItem(ctx, azcosmos.PartitionKey{}, fmt.Sprintf("id-%d", i), nil)
+		}
+
+		for i := 0; i < rutineCount; i++ {
+			wg.Add(1)
+			go createCall(i)
+		}
+
+		wg.Wait()
+		close(results)
+
+		for err := range results {
+			if err != nil {
+				t.Errorf("Error creating item: %v", err)
+			}
+		}
+	})
+}
+
+func Test_Documents_Patch(t *testing.T) {
+	ts, collectionClient := documents_InitializeDb(t)
+	defer ts.Close()
+
+	t.Run("Should PATCH document", func(t *testing.T) {
+		context := context.TODO()
+		expectedData := map[string]interface{}{"id": "67890", "pk": "456", "newField": "newValue"}
+
+		patch := azcosmos.PatchOperations{}
+		patch.AppendAdd("/newField", "newValue")
+		patch.AppendRemove("/isCool")
+
+		itemResponse, err := collectionClient.PatchItem(
+			context,
+			azcosmos.PartitionKey{},
+			"67890",
+			patch,
+			&azcosmos.ItemOptions{
+				EnableContentResponseOnWrite: false,
+			},
+		)
+		assert.Nil(t, err)
+
+		var itemResponseBody map[string]string
+		json.Unmarshal(itemResponse.Value, &itemResponseBody)
+
+		assert.Equal(t, expectedData["id"], itemResponseBody["id"])
+		assert.Equal(t, expectedData["pk"], itemResponseBody["pk"])
+		assert.Empty(t, itemResponseBody["isCool"])
+		assert.Equal(t, expectedData["newField"], itemResponseBody["newField"])
+	})
+
+	t.Run("Should not allow to PATCH document ID", func(t *testing.T) {
+		context := context.TODO()
+
+		patch := azcosmos.PatchOperations{}
+		patch.AppendReplace("/id", "newValue")
+
+		_, err := collectionClient.PatchItem(
+			context,
+			azcosmos.PartitionKey{},
+			"67890",
+			patch,
+			&azcosmos.ItemOptions{
+				EnableContentResponseOnWrite: false,
+			},
+		)
+		assert.NotNil(t, err)
+
+		var respErr *azcore.ResponseError
+		if errors.As(err, &respErr) {
+			assert.Equal(t, http.StatusUnprocessableEntity, respErr.StatusCode)
+		} else {
+			panic(err)
+		}
+	})
+
+	t.Run("CreateItem", func(t *testing.T) {
+		context := context.TODO()
+
+		item := map[string]interface{}{
+			"Id":       "6789011",
+			"pk":       "456",
+			"newField": "newValue2",
+		}
+		bytes, err := json.Marshal(item)
+		assert.Nil(t, err)
+
+		r, err2 := collectionClient.CreateItem(
+			context,
+			azcosmos.PartitionKey{},
+			bytes,
+			&azcosmos.ItemOptions{
+				EnableContentResponseOnWrite: false,
+			},
+		)
+		assert.NotNil(t, r)
+		assert.Nil(t, err2)
+	})
+
+	t.Run("CreateItem that already exists", func(t *testing.T) {
+		context := context.TODO()
+
+		item := map[string]interface{}{"id": "12345", "pk": "123", "isCool": false, "arr": []int{1, 2, 3}}
+		bytes, err := json.Marshal(item)
+		assert.Nil(t, err)
+
+		r, err := collectionClient.CreateItem(
+			context,
+			azcosmos.PartitionKey{},
+			bytes,
+			&azcosmos.ItemOptions{
+				EnableContentResponseOnWrite: false,
+			},
+		)
+		assert.NotNil(t, r)
+		assert.NotNil(t, err)
+
+		var respErr *azcore.ResponseError
+		if errors.As(err, &respErr) {
+			assert.Equal(t, http.StatusConflict, respErr.StatusCode)
+		} else {
+			panic(err)
+		}
+	})
+
+	t.Run("UpsertItem new", func(t *testing.T) {
+		context := context.TODO()
+
+		item := map[string]interface{}{"id": "123456", "pk": "1234", "isCool": false, "arr": []int{1, 2, 3}}
+		bytes, err := json.Marshal(item)
+		assert.Nil(t, err)
+
+		r, err2 := collectionClient.UpsertItem(
+			context,
+			azcosmos.PartitionKey{},
+			bytes,
+			&azcosmos.ItemOptions{
+				EnableContentResponseOnWrite: false,
+			},
+		)
+		assert.NotNil(t, r)
+		assert.Nil(t, err2)
+	})
+
+	t.Run("UpsertItem that already exists", func(t *testing.T) {
+		context := context.TODO()
+
+		item := map[string]interface{}{"id": "12345", "pk": "123", "isCool": false, "arr": []int{1, 2, 3, 4}}
+		bytes, err := json.Marshal(item)
+		assert.Nil(t, err)
+
+		r, err2 := collectionClient.UpsertItem(
+			context,
+			azcosmos.PartitionKey{},
+			bytes,
+			&azcosmos.ItemOptions{
+				EnableContentResponseOnWrite: false,
+			},
+		)
+		assert.NotNil(t, r)
+		assert.Nil(t, err2)
+	})
+
 }
--- a/api/tests/documents_trailingslash_test.go
+++ b/api/tests/documents_trailingslash_test.go
@@ -0,0 +1,41 @@
+package tests_test
+
+import (
+	"fmt"
+	"net/http"
+	"net/url"
+	"testing"
+	"time"
+
+	"github.com/pikami/cosmium/api/config"
+	"github.com/pikami/cosmium/internal/authentication"
+	"github.com/stretchr/testify/assert"
+)
+
+// Request document with trailing slash like python cosmosdb client does.
+func Test_Documents_Read_Trailing_Slash(t *testing.T) {
+	ts, _ := documents_InitializeDb(t)
+	defer ts.Close()
+
+	t.Run("Read doc with client that appends slash to path", func(t *testing.T) {
+		resourceIdTemplate := "dbs/%s/colls/%s/docs/%s"
+		path := fmt.Sprintf(resourceIdTemplate, testDatabaseName, testCollectionName, "12345")
+		testUrl := ts.URL + "/" + path + "/"
+		date := time.Now().Format(time.RFC1123)
+		signature := authentication.GenerateSignature("GET", "docs", path, date, config.Config.AccountKey)
+		httpClient := &http.Client{}
+		req, _ := http.NewRequest("GET", testUrl, nil)
+		req.Header.Add("x-ms-date", date)
+		req.Header.Add("authorization", "sig="+url.QueryEscape(signature))
+		res, err := httpClient.Do(req)
+
+		assert.Nil(t, err)
+
+		if res != nil {
+			defer res.Body.Close()
+			assert.Equal(t, http.StatusOK, res.StatusCode, "Expected HTTP status 200 OK")
+		} else {
+			t.FailNow()
+		}
+	})
+}
--- a/docs/COMPATIBILITY.md
+++ b/docs/COMPATIBILITY.md
@@ -15,10 +15,11 @@ Cosmium strives to support the core features of Cosmos DB, including:
 ## Compatibility Matrix

 ### Features
+
 | Feature                       | Implemented |
-|-------------------------------|-------------|
-| Subqueries                    | No          |
-| Joins                         | No          |
+| ----------------------------- | ----------- |
+| Subqueries                    | Yes         |
+| Joins                         | Yes         |
 | Computed properties           | No          |
 | Coalesce operators            | No          |
 | Bitwise operators             | No          |
@@ -29,8 +30,9 @@ Cosmium strives to support the core features of Cosmos DB, including:
 | User-defined functions (UDFs) | No          |

 ### Clauses
+
 | Clause       | Implemented |
-|--------------|-------------|
+| ------------ | ----------- |
 | SELECT       | Yes         |
 | FROM         | Yes         |
 | WHERE        | Yes         |
@@ -39,8 +41,9 @@ Cosmium strives to support the core features of Cosmos DB, including:
 | OFFSET LIMIT | Yes         |

 ### Keywords
+
 | Keyword  | Implemented |
-|----------|-------------|
+| -------- | ----------- |
 | BETWEEN  | No          |
 | DISTINCT | Yes         |
 | LIKE     | No          |
@@ -48,8 +51,9 @@ Cosmium strives to support the core features of Cosmos DB, including:
 | TOP      | Yes         |

 ### Aggregate Functions
+
 | Function | Implemented |
-|----------|-------------|
+| -------- | ----------- |
 | AVG      | Yes         |
 | COUNT    | Yes         |
 | MAX      | Yes         |
@@ -57,25 +61,30 @@ Cosmium strives to support the core features of Cosmos DB, including:
 | SUM      | Yes         |

 ### Array Functions
-| Function       | Implemented |
-|----------------|-------------|
-| ARRAY_CONCAT   | Yes         |
-| ARRAY_CONTAINS | No          |
-| ARRAY_LENGTH   | Yes         |
-| ARRAY_SLICE    | Yes         |
-| CHOOSE         | No          |
-| ObjectToArray  | No          |
-| SetIntersect   | Yes         |
-| SetUnion       | Yes         |
+
+| Function           | Implemented |
+| ------------------ | ----------- |
+| ARRAY_CONCAT       | Yes         |
+| ARRAY_CONTAINS     | No          |
+| ARRAY_CONTAINS_ANY | No          |
+| ARRAY_CONTAINS_ALL | No          |
+| ARRAY_LENGTH       | Yes         |
+| ARRAY_SLICE        | Yes         |
+| CHOOSE             | No          |
+| ObjectToArray      | No          |
+| SetIntersect       | Yes         |
+| SetUnion           | Yes         |

 ### Conditional Functions
+
 | Function | Implemented |
-|----------|-------------|
+| -------- | ----------- |
 | IIF      | No          |

 ### Date and time Functions
+
 | Function                  | Implemented |
-|---------------------------|-------------|
+| ------------------------- | ----------- |
 | DateTimeAdd               | No          |
 | DateTimeBin               | No          |
 | DateTimeDiff              | No          |
@@ -93,53 +102,56 @@ Cosmium strives to support the core features of Cosmos DB, including:
 | TimestampToDateTime       | No          |

 ### Item Functions
+
 | Function   | Implemented |
-|------------|-------------|
+| ---------- | ----------- |
 | DocumentId | No          |

 ### Mathematical Functions
+
 | Function         | Implemented |
-|------------------|-------------|
-| ABS              | No          |
-| ACOS             | No          |
-| ASIN             | No          |
-| ATAN             | No          |
-| ATN2             | No          |
-| CEILING          | No          |
-| COS              | No          |
-| COT              | No          |
-| DEGREES          | No          |
-| EXP              | No          |
-| FLOOR            | No          |
-| IntAdd           | No          |
-| IntBitAnd        | No          |
-| IntBitLeftShift  | No          |
-| IntBitNot        | No          |
-| IntBitOr         | No          |
-| IntBitRightShift | No          |
-| IntBitXor        | No          |
-| IntDiv           | No          |
-| IntMod           | No          |
-| IntMul           | No          |
-| IntSub           | No          |
-| LOG              | No          |
-| LOG10            | No          |
-| NumberBin        | No          |
-| PI               | No          |
-| POWER            | No          |
-| RADIANS          | No          |
-| RAND             | No          |
-| ROUND            | No          |
-| SIGN             | No          |
-| SIN              | No          |
-| SQRT             | No          |
-| SQUARE           | No          |
-| TAN              | No          |
-| TRUNC            | No          |
+| ---------------- | ----------- |
+| ABS              | Yes         |
+| ACOS             | Yes         |
+| ASIN             | Yes         |
+| ATAN             | Yes         |
+| ATN2             | Yes         |
+| CEILING          | Yes         |
+| COS              | Yes         |
+| COT              | Yes         |
+| DEGREES          | Yes         |
+| EXP              | Yes         |
+| FLOOR            | Yes         |
+| IntAdd           | Yes         |
+| IntBitAnd        | Yes         |
+| IntBitLeftShift  | Yes         |
+| IntBitNot        | Yes         |
+| IntBitOr         | Yes         |
+| IntBitRightShift | Yes         |
+| IntBitXor        | Yes         |
+| IntDiv           | Yes         |
+| IntMod           | Yes         |
+| IntMul           | Yes         |
+| IntSub           | Yes         |
+| LOG              | Yes         |
+| LOG10            | Yes         |
+| NumberBin        | Yes         |
+| PI               | Yes         |
+| POWER            | Yes         |
+| RADIANS          | Yes         |
+| RAND             | Yes         |
+| ROUND            | Yes         |
+| SIGN             | Yes         |
+| SIN              | Yes         |
+| SQRT             | Yes         |
+| SQUARE           | Yes         |
+| TAN              | Yes         |
+| TRUNC            | Yes         |

 ### Spatial Functions
+
 | Function           | Implemented |
-|--------------------|-------------|
+| ------------------ | ----------- |
 | ST_AREA            | No          |
 | ST_DISTANCE        | No          |
 | ST_WITHIN          | No          |
@@ -148,8 +160,9 @@ Cosmium strives to support the core features of Cosmos DB, including:
 | ST_ISVALIDDETAILED | No          |

 ### String Functions
+
 | Function        | Implemented |
-|-----------------|-------------|
+| --------------- | ----------- |
 | CONCAT          | Yes         |
 | CONTAINS        | Yes         |
 | ENDSWITH        | Yes         |
@@ -177,8 +190,9 @@ Cosmium strives to support the core features of Cosmos DB, including:
 | UPPER           | Yes         |

 ### Type checking Functions
+
 | Function         | Implemented |
-|------------------|-------------|
+| ---------------- | ----------- |
 | IS_ARRAY         | Yes         |
 | IS_BOOL          | Yes         |
 | IS_DEFINED       | Yes         |
--- a/go.mod
+++ b/go.mod
@@ -5,39 +5,43 @@ go 1.21.6
 require (
 	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.9.2
 	github.com/Azure/azure-sdk-for-go/sdk/data/azcosmos v0.3.6
-	github.com/gin-gonic/gin v1.9.1
-	github.com/google/uuid v1.1.1
-	github.com/stretchr/testify v1.8.4
-	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225
+	github.com/evanphx/json-patch/v5 v5.9.0
+	github.com/gin-gonic/gin v1.10.0
+	github.com/google/uuid v1.6.0
+	github.com/stretchr/testify v1.9.0
+	golang.org/x/exp v0.0.0-20240531132922-fd00a4e0eefc
 )

 require (
 	github.com/Azure/azure-sdk-for-go v68.0.0+incompatible // indirect
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.5.2 // indirect
-	github.com/bytedance/sonic v1.9.1 // indirect
-	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
+	github.com/bytedance/sonic v1.11.8 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.4 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.14.0 // indirect
-	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/go-playground/validator/v10 v10.21.0 // indirect
+	github.com/goccy/go-json v0.10.3 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
-	github.com/leodido/go-urn v1.2.4 // indirect
-	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.8 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
-	github.com/ugorji/go/codec v1.2.11 // indirect
-	golang.org/x/arch v0.3.0 // indirect
-	golang.org/x/crypto v0.18.0 // indirect
-	golang.org/x/net v0.20.0 // indirect
-	golang.org/x/sys v0.16.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
-	google.golang.org/protobuf v1.30.0 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -10,100 +10,104 @@ github.com/Azure/azure-sdk-for-go/sdk/internal v1.5.2 h1:LqbJ/WzJUwBf8UiaSzgX7aM
 github.com/Azure/azure-sdk-for-go/sdk/internal v1.5.2/go.mod h1:yInRyqWXAuaPrgI7p70+lDDgh3mlBohis29jGMISnmc=
 github.com/AzureAD/microsoft-authentication-library-for-go v0.4.0 h1:WVsrXCnHlDDX8ls+tootqRE87/hL9S/g4ewig9RsD/c=
 github.com/AzureAD/microsoft-authentication-library-for-go v0.4.0/go.mod h1:Vt9sXTKwMyGcOxSmLDMnGPgqsUg7m8pe215qMLrDXw4=
-github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
-github.com/bytedance/sonic v1.9.1 h1:6iJ6NqdoxCDr6mbY8h18oSO+cShGSMRGCEo7F2h0x8s=
-github.com/bytedance/sonic v1.9.1/go.mod h1:i736AoUSYt75HyZLoJW9ERYxcy6eaN6h4BZXU064P/U=
-github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
-github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 h1:qSGYFH7+jGhDF8vLC+iwCD4WpbV1EBDSzWkJODFLams=
-github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk=
+github.com/bytedance/sonic v1.11.8 h1:Zw/j1KfiS+OYTi9lyB3bb0CFxPJVkM17k1wyDG32LRA=
+github.com/bytedance/sonic v1.11.8/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4=
+github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM=
+github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
+github.com/cloudwego/base64x v0.1.4 h1:jwCgWpFanWmN8xoIUHa2rtzmkd5J2plF/dnLS6Xd/0Y=
+github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
+github.com/cloudwego/iasm v0.2.0 h1:1KNIy1I1H9hNNFEEH3DVnI4UujN+1zjpuk6gwHLTssg=
+github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
-github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
+github.com/evanphx/json-patch/v5 v5.9.0 h1:kcBlZQbplgElYIlo/n1hJbls2z/1awpXxpRi0/FOJfg=
+github.com/evanphx/json-patch/v5 v5.9.0/go.mod h1:VNkHZ/282BpEyt/tObQO8s5CMPmYYq14uClGH4abBuQ=
+github.com/gabriel-vasile/mimetype v1.4.4 h1:QjV6pZ7/XZ7ryI2KuyeEDE8wnh7fHP9YnQy+R0LnH8I=
+github.com/gabriel-vasile/mimetype v1.4.4/go.mod h1:JwLei5XPtWdGiMFB5Pjle1oEeoSeEuJfJE+TtfvdB/s=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
-github.com/gin-gonic/gin v1.9.1 h1:4idEAncQnU5cB7BeOkPtxjfCSye0AAm1R0RVIqJ+Jmg=
-github.com/gin-gonic/gin v1.9.1/go.mod h1:hPrL7YrpYKXt5YId3A/Tnip5kqbEAP+KLuI3SUcPTeU=
+github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
+github.com/gin-gonic/gin v1.10.0/go.mod h1:4PMNQiOhvDRa013RKVbsiNwoyezlm2rm0uX/T7kzp5Y=
 github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
 github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
 github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
 github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
 github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
-github.com/go-playground/validator/v10 v10.14.0 h1:vgvQWe3XCz3gIeFDm/HnTIbj6UGmg/+t63MyGU2n5js=
-github.com/go-playground/validator/v10 v10.14.0/go.mod h1:9iXMNT7sEkjXb0I+enO7QXmzG6QCsPWY4zveKFVRSyU=
-github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
-github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
+github.com/go-playground/validator/v10 v10.21.0 h1:4fZA11ovvtkdgaeev9RGWPgc1uj3H8W+rNYyH/ySBb0=
+github.com/go-playground/validator/v10 v10.21.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
+github.com/goccy/go-json v0.10.3 h1:KZ5WoDbxAIgm2HNbYckL0se1fHD6rz5j4ywS6ebzDqA=
+github.com/goccy/go-json v0.10.3/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
 github.com/golang-jwt/jwt v3.2.1+incompatible h1:73Z+4BJcrTC+KczS6WvTPvRGOp1WmfEP4Q1lOd9Z/+c=
 github.com/golang-jwt/jwt v3.2.1+incompatible/go.mod h1:8pz2t5EyA70fFQQSrl6XZXzqecmYZeUEB8OUGHkxJ+I=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
-github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
-github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
-github.com/klauspost/cpuid/v2 v2.2.4 h1:acbojRNwl3o09bUq+yDCtZFc1aiwaAAxtcn8YkZXnvk=
-github.com/klauspost/cpuid/v2 v2.2.4/go.mod h1:RVVoqg1df56z8g3pUjL/3lE5UfnlrJX8tyFgg4nqhuY=
+github.com/klauspost/cpuid/v2 v2.2.7 h1:ZWSB3igEs+d0qvnxR/ZBzXVmxkgt8DdzP6m9pfuVLDM=
+github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
+github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
-github.com/leodido/go-urn v1.2.4 h1:XlAE/cm/ms7TE/VMVoduSpNBoyc2dOxHs5MZSwAN63Q=
-github.com/leodido/go-urn v1.2.4/go.mod h1:7ZrI8mTSeBSHl/UaRyKQW1qZeMgak41ANeCNaVckg+4=
-github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
-github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
+github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/pelletier/go-toml/v2 v2.0.8 h1:0ctb6s9mE31h0/lhu+J6OPmVeDxJn+kYnJc2jZR9tGQ=
-github.com/pelletier/go-toml/v2 v2.0.8/go.mod h1:vuYfssBdrU2XDZ9bYydBu6t+6a6PYNcZljzZR9VXg+4=
+github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
+github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
 github.com/pkg/browser v0.0.0-20210115035449-ce105d075bb4 h1:Qj1ukM4GlMWXNdMBuXcXfz/Kw9s1qm0CLY32QxuSImI=
 github.com/pkg/browser v0.0.0-20210115035449-ce105d075bb4/go.mod h1:N6UoU20jOqggOuDwUaBQpluzLNDqif3kq9z2wpdYEfQ=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI=
 github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
-github.com/ugorji/go/codec v1.2.11 h1:BMaWp1Bb6fHwEtbplGBGJ498wD+LKlNSl25MjdZY4dU=
-github.com/ugorji/go/codec v1.2.11/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
+github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
+github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
-golang.org/x/arch v0.3.0 h1:02VY4/ZcO/gBOH6PUaoiptASxtXU10jazRCP865E97k=
-golang.org/x/arch v0.3.0/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
-golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
-golang.org/x/crypto v0.18.0/go.mod h1:R0j02AL6hcrfOiy9T4ZYp/rcWeMxM3L6QYxlOuEG1mg=
-golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 h1:LfspQV/FYTatPTr/3HzIcmiUFH7PGP+OQ6mgDYo3yuQ=
-golang.org/x/exp v0.0.0-20240222234643-814bf88cf225/go.mod h1:CxmFvTBINI24O/j8iY7H1xHzx2i4OsyguNBmN/uPtqc=
-golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
-golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
-golang.org/x/sys v0.0.0-20220704084225-05e143d24a9e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
+golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
+golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/exp v0.0.0-20240531132922-fd00a4e0eefc h1:O9NuF4s+E/PvMIy+9IUZB9znFwUIXEWSstNjek6VpVg=
+golang.org/x/exp v0.0.0-20240531132922-fd00a4e0eefc/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc=
+golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
+golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
-golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
-google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
+golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
+google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
--- a/internal/authentication/authentication.go
+++ b/internal/authentication/authentication.go
@@ -10,6 +10,11 @@ import (

 // https://learn.microsoft.com/en-us/rest/api/cosmos-db/access-control-on-cosmosdb-resources
 func GenerateSignature(verb string, resourceType string, resourceId string, date string, masterKey string) string {
+	isNameBased := resourceId != "" && ((len(resourceId) > 4 && resourceId[3] == '/') || strings.HasPrefix(strings.ToLower(resourceId), "interopusers"))
+	if !isNameBased {
+		resourceId = strings.ToLower(resourceId)
+	}
+
 	payload := fmt.Sprintf(
 		"%s\n%s\n%s\n%s\n%s\n",
 		strings.ToLower(verb),
--- a/internal/authentication/authentication_test.go
+++ b/internal/authentication/authentication_test.go
@@ -27,4 +27,14 @@ func Test_GenerateSignature(t *testing.T) {
 		signature := authentication.GenerateSignature("DELETE", "dbs", "dbs/Test Database", testDate, config.DefaultAccountKey)
 		assert.Equal(t, "LcuXXg0TcXxZG0kUCj9tZIWRy2yCzim3oiqGiHpRqGs=", signature)
 	})
+
+	t.Run("Should generate PKRANGES signature", func(t *testing.T) {
+		signature := authentication.GenerateSignature("GET", "pkranges", "m4d+xG08uVM=", testDate, config.DefaultAccountKey)
+		assert.Equal(t, "6S5ceZsl2EXWB3Jo5bJcK7zv8NxXnsxWPWD9TH3nNMo=", signature)
+	})
+
+	t.Run("Should generate PATCH signature", func(t *testing.T) {
+		signature := authentication.GenerateSignature("PATCH", "docs", "dbs/test-db/colls/test-coll/docs/67890", testDate, config.DefaultAccountKey)
+		assert.Equal(t, "VR1ddfxKBXnoaT+b3WkhyYVc9JmGNpTnaRmyDM44398=", signature)
+	})
 }
--- a/internal/repositories/collections.go
+++ b/internal/repositories/collections.go
@@ -12,6 +12,9 @@ import (
 )

 func GetAllCollections(databaseId string) ([]repositorymodels.Collection, repositorymodels.RepositoryStatus) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	if _, ok := storeState.Databases[databaseId]; !ok {
 		return make([]repositorymodels.Collection, 0), repositorymodels.StatusNotFound
 	}
@@ -20,6 +23,9 @@ func GetAllCollections(databaseId string) ([]repositorymodels.Collection, reposi
 }

 func GetCollection(databaseId string, collectionId string) (repositorymodels.Collection, repositorymodels.RepositoryStatus) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	if _, ok := storeState.Databases[databaseId]; !ok {
 		return repositorymodels.Collection{}, repositorymodels.StatusNotFound
 	}
@@ -32,6 +38,9 @@ func GetCollection(databaseId string, collectionId string) (repositorymodels.Col
 }

 func DeleteCollection(databaseId string, collectionId string) repositorymodels.RepositoryStatus {
+	storeState.Lock()
+	defer storeState.Unlock()
+
 	if _, ok := storeState.Databases[databaseId]; !ok {
 		return repositorymodels.StatusNotFound
 	}
@@ -46,6 +55,9 @@ func DeleteCollection(databaseId string, collectionId string) repositorymodels.R
 }

 func CreateCollection(databaseId string, newCollection repositorymodels.Collection) (repositorymodels.Collection, repositorymodels.RepositoryStatus) {
+	storeState.Lock()
+	defer storeState.Unlock()
+
 	var ok bool
 	var database repositorymodels.Database
 	if database, ok = storeState.Databases[databaseId]; !ok {
--- a/internal/repositories/databases.go
+++ b/internal/repositories/databases.go
@@ -11,10 +11,16 @@ import (
 )

 func GetAllDatabases() ([]repositorymodels.Database, repositorymodels.RepositoryStatus) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	return maps.Values(storeState.Databases), repositorymodels.StatusOk
 }

 func GetDatabase(id string) (repositorymodels.Database, repositorymodels.RepositoryStatus) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	if database, ok := storeState.Databases[id]; ok {
 		return database, repositorymodels.StatusOk
 	}
@@ -23,6 +29,9 @@ func GetDatabase(id string) (repositorymodels.Database, repositorymodels.Reposit
 }

 func DeleteDatabase(id string) repositorymodels.RepositoryStatus {
+	storeState.Lock()
+	defer storeState.Unlock()
+
 	if _, ok := storeState.Databases[id]; !ok {
 		return repositorymodels.StatusNotFound
 	}
@@ -33,6 +42,9 @@ func DeleteDatabase(id string) repositorymodels.RepositoryStatus {
 }

 func CreateDatabase(newDatabase repositorymodels.Database) (repositorymodels.Database, repositorymodels.RepositoryStatus) {
+	storeState.Lock()
+	defer storeState.Unlock()
+
 	if _, ok := storeState.Databases[newDatabase.ID]; ok {
 		return repositorymodels.Database{}, repositorymodels.Conflict
 	}
--- a/internal/repositories/documents.go
+++ b/internal/repositories/documents.go
@@ -15,6 +15,9 @@ import (
 )

 func GetAllDocuments(databaseId string, collectionId string) ([]repositorymodels.Document, repositorymodels.RepositoryStatus) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	if _, ok := storeState.Databases[databaseId]; !ok {
 		return make([]repositorymodels.Document, 0), repositorymodels.StatusNotFound
 	}
@@ -27,6 +30,9 @@ func GetAllDocuments(databaseId string, collectionId string) ([]repositorymodels
 }

 func GetDocument(databaseId string, collectionId string, documentId string) (repositorymodels.Document, repositorymodels.RepositoryStatus) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	if _, ok := storeState.Databases[databaseId]; !ok {
 		return repositorymodels.Document{}, repositorymodels.StatusNotFound
 	}
@@ -43,6 +49,9 @@ func GetDocument(databaseId string, collectionId string, documentId string) (rep
 }

 func DeleteDocument(databaseId string, collectionId string, documentId string) repositorymodels.RepositoryStatus {
+	storeState.Lock()
+	defer storeState.Unlock()
+
 	if _, ok := storeState.Databases[databaseId]; !ok {
 		return repositorymodels.StatusNotFound
 	}
@@ -61,12 +70,16 @@ func DeleteDocument(databaseId string, collectionId string, documentId string) r
 }

 func CreateDocument(databaseId string, collectionId string, document map[string]interface{}) (repositorymodels.Document, repositorymodels.RepositoryStatus) {
+	storeState.Lock()
+	defer storeState.Unlock()
+
 	var ok bool
 	var documentId string
 	var database repositorymodels.Database
 	var collection repositorymodels.Collection
 	if documentId, ok = document["id"].(string); !ok || documentId == "" {
-		return repositorymodels.Document{}, repositorymodels.BadRequest
+		documentId = fmt.Sprint(uuid.New())
+		document["id"] = documentId
 	}

 	if database, ok = storeState.Databases[databaseId]; !ok {
@@ -110,7 +123,7 @@ func ExecuteQueryDocuments(databaseId string, collectionId string, query string,

 	if typedQuery, ok := parsedQuery.(parsers.SelectStmt); ok {
 		typedQuery.Parameters = queryParameters
-		return memoryexecutor.Execute(typedQuery, covDocs), repositorymodels.StatusOk
+		return memoryexecutor.ExecuteQuery(typedQuery, covDocs), repositorymodels.StatusOk
 	}

 	return nil, repositorymodels.BadRequest
--- a/internal/repositories/partition_key_ranges.go
+++ b/internal/repositories/partition_key_ranges.go
@@ -10,6 +10,9 @@ import (

 // I have no idea what this is tbh
 func GetPartitionKeyRanges(databaseId string, collectionId string) ([]repositorymodels.PartitionKeyRange, repositorymodels.RepositoryStatus) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	databaseRid := databaseId
 	collectionRid := collectionId
 	var timestamp int64 = 0
--- a/internal/repositories/state.go
+++ b/internal/repositories/state.go
@@ -66,6 +66,9 @@ func LoadStateFS(filePath string) {
 }

 func SaveStateFS(filePath string) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
 	data, err := json.MarshalIndent(storeState, "", "\t")
 	if err != nil {
 		logger.Errorf("Failed to save state: %v\n", err)
@@ -80,8 +83,17 @@ func SaveStateFS(filePath string) {
 	logger.Infof("Documents: %d\n", getLength(storeState.Documents))
 }

-func GetState() repositorymodels.State {
-	return storeState
+func GetState() (string, error) {
+	storeState.RLock()
+	defer storeState.RUnlock()
+
+	data, err := json.MarshalIndent(storeState, "", "\t")
+	if err != nil {
+		logger.Errorf("Failed to serialize state: %v\n", err)
+		return "", err
+	}
+
+	return string(data), nil
 }

 func getLength(v interface{}) int {
--- a/internal/repository_models/models.go
+++ b/internal/repository_models/models.go
@@ -1,5 +1,7 @@
 package repositorymodels

+import "sync"
+
 type Database struct {
 	ID         string `json:"id"`
 	TimeStamp  int64  `json:"_ts"`
@@ -101,6 +103,8 @@ type PartitionKeyRange struct {
 }

 type State struct {
+	sync.RWMutex
+
 	// Map databaseId -> Database
 	Databases map[string]Database `json:"databases"`

--- a/internal/resourceid/resourceid.go
+++ b/internal/resourceid/resourceid.go
@@ -2,6 +2,7 @@ package resourceid

 import (
 	"encoding/base64"
+	"math/rand"

 	"github.com/google/uuid"
 )
@@ -10,6 +11,12 @@ func New() string {
 	id := uuid.New().ID()
 	idBytes := uintToBytes(id)

+	// first byte should be bigger than 0x80 for collection ids
+	// clients classify this id as "user" otherwise
+	if (idBytes[0] & 0x80) <= 0 {
+		idBytes[0] = byte(rand.Intn(0x80) + 0x80)
+	}
+
 	return base64.StdEncoding.EncodeToString(idBytes)
 }

--- a/parsers/models.go
+++ b/parsers/models.go
@@ -3,7 +3,9 @@ package parsers
 type SelectStmt struct {
 	SelectItems      []SelectItem
 	Table            Table
+	JoinItems        []JoinItem
 	Filters          interface{}
+	Exists           bool
 	Distinct         bool
 	Count            int
 	Offset           int
@@ -13,7 +15,13 @@ type SelectStmt struct {
 }

 type Table struct {
-	Value string
+	Value      string
+	SelectItem SelectItem
+}
+
+type JoinItem struct {
+	Table      Table
+	SelectItem SelectItem
 }

 type SelectItemType int
@@ -24,6 +32,7 @@ const (
 	SelectItemTypeArray
 	SelectItemTypeConstant
 	SelectItemTypeFunctionCall
+	SelectItemTypeSubQuery
 )

 type SelectItem struct {
@@ -120,6 +129,43 @@ const (
 	FunctionCallSetIntersect FunctionCallType = "SetIntersect"
 	FunctionCallSetUnion     FunctionCallType = "SetUnion"

+	FunctionCallMathAbs              FunctionCallType = "MathAbs"
+	FunctionCallMathAcos             FunctionCallType = "MathAcos"
+	FunctionCallMathAsin             FunctionCallType = "MathAsin"
+	FunctionCallMathAtan             FunctionCallType = "MathAtan"
+	FunctionCallMathAtn2             FunctionCallType = "MathAtn2"
+	FunctionCallMathCeiling          FunctionCallType = "MathCeiling"
+	FunctionCallMathCos              FunctionCallType = "MathCos"
+	FunctionCallMathCot              FunctionCallType = "MathCot"
+	FunctionCallMathDegrees          FunctionCallType = "MathDegrees"
+	FunctionCallMathExp              FunctionCallType = "MathExp"
+	FunctionCallMathFloor            FunctionCallType = "MathFloor"
+	FunctionCallMathIntAdd           FunctionCallType = "MathIntAdd"
+	FunctionCallMathIntBitAnd        FunctionCallType = "MathIntBitAnd"
+	FunctionCallMathIntBitLeftShift  FunctionCallType = "MathIntBitLeftShift"
+	FunctionCallMathIntBitNot        FunctionCallType = "MathIntBitNot"
+	FunctionCallMathIntBitOr         FunctionCallType = "MathIntBitOr"
+	FunctionCallMathIntBitRightShift FunctionCallType = "MathIntBitRightShift"
+	FunctionCallMathIntBitXor        FunctionCallType = "MathIntBitXor"
+	FunctionCallMathIntDiv           FunctionCallType = "MathIntDiv"
+	FunctionCallMathIntMod           FunctionCallType = "MathIntMod"
+	FunctionCallMathIntMul           FunctionCallType = "MathIntMul"
+	FunctionCallMathIntSub           FunctionCallType = "MathIntSub"
+	FunctionCallMathLog              FunctionCallType = "MathLog"
+	FunctionCallMathLog10            FunctionCallType = "MathLog10"
+	FunctionCallMathNumberBin        FunctionCallType = "MathNumberBin"
+	FunctionCallMathPi               FunctionCallType = "MathPi"
+	FunctionCallMathPower            FunctionCallType = "MathPower"
+	FunctionCallMathRadians          FunctionCallType = "MathRadians"
+	FunctionCallMathRand             FunctionCallType = "MathRand"
+	FunctionCallMathRound            FunctionCallType = "MathRound"
+	FunctionCallMathSign             FunctionCallType = "MathSign"
+	FunctionCallMathSin              FunctionCallType = "MathSin"
+	FunctionCallMathSqrt             FunctionCallType = "MathSqrt"
+	FunctionCallMathSquare           FunctionCallType = "MathSquare"
+	FunctionCallMathTan              FunctionCallType = "MathTan"
+	FunctionCallMathTrunc            FunctionCallType = "MathTrunc"
+
 	FunctionCallAggregateAvg   FunctionCallType = "AggregateAvg"
 	FunctionCallAggregateCount FunctionCallType = "AggregateCount"
 	FunctionCallAggregateMax   FunctionCallType = "AggregateMax"
--- a/parsers/nosql/join_test.go
+++ b/parsers/nosql/join_test.go
@@ -0,0 +1,57 @@
+package nosql_test
+
+import (
+	"testing"
+
+	"github.com/pikami/cosmium/parsers"
+)
+
+func Test_Parse_Join(t *testing.T) {
+
+	t.Run("Should parse simple JOIN", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT c.id, c["pk"] FROM c JOIN cc IN c["tags"]`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{Path: []string{"c", "pk"}},
+				},
+				Table: parsers.Table{Value: "c"},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{
+							Value: "cc",
+						},
+						SelectItem: parsers.SelectItem{
+							Path: []string{"c", "tags"},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse JOIN VALUE", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT VALUE cc FROM c JOIN cc IN c["tags"]`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"cc"}, IsTopLevel: true},
+				},
+				Table: parsers.Table{Value: "c"},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{
+							Value: "cc",
+						},
+						SelectItem: parsers.SelectItem{
+							Path: []string{"c", "tags"},
+						},
+					},
+				},
+			},
+		)
+	})
+}
--- a/parsers/nosql/math_functions_test.go
+++ b/parsers/nosql/math_functions_test.go
@@ -0,0 +1,650 @@
+package nosql_test
+
+import (
+	"testing"
+
+	"github.com/pikami/cosmium/parsers"
+)
+
+func Test_Execute_MathFunctions(t *testing.T) {
+	t.Run("Should parse function ABS(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT ABS(c.value) FROM c`,
+			parsers.FunctionCallMathAbs,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function ACOS(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT ACOS(c.value) FROM c`,
+			parsers.FunctionCallMathAcos,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function ASIN(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT ASIN(c.value) FROM c`,
+			parsers.FunctionCallMathAsin,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function ATAN(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT ATAN(c.value) FROM c`,
+			parsers.FunctionCallMathAtan,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function CEILING(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT CEILING(c.value) FROM c`,
+			parsers.FunctionCallMathCeiling,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function COS(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT COS(c.value) FROM c`,
+			parsers.FunctionCallMathCos,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function COT(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT COT(c.value) FROM c`,
+			parsers.FunctionCallMathCot,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function DEGREES(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT DEGREES(c.value) FROM c`,
+			parsers.FunctionCallMathDegrees,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function EXP(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT EXP(c.value) FROM c`,
+			parsers.FunctionCallMathExp,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function FLOOR(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT FLOOR(c.value) FROM c`,
+			parsers.FunctionCallMathFloor,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntBitNot(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntBitNot(c.value) FROM c`,
+			parsers.FunctionCallMathIntBitNot,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function LOG10(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT LOG10(c.value) FROM c`,
+			parsers.FunctionCallMathLog10,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function RADIANS(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT RADIANS(c.value) FROM c`,
+			parsers.FunctionCallMathRadians,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function ROUND(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT ROUND(c.value) FROM c`,
+			parsers.FunctionCallMathRound,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function SIGN(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT SIGN(c.value) FROM c`,
+			parsers.FunctionCallMathSign,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function SIN(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT SIN(c.value) FROM c`,
+			parsers.FunctionCallMathSin,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function SQRT(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT SQRT(c.value) FROM c`,
+			parsers.FunctionCallMathSqrt,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function SQUARE(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT SQUARE(c.value) FROM c`,
+			parsers.FunctionCallMathSquare,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function TAN(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT TAN(c.value) FROM c`,
+			parsers.FunctionCallMathTan,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function TRUNC(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT TRUNC(c.value) FROM c`,
+			parsers.FunctionCallMathTrunc,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function ATN2(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT ATN2(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathAtn2,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntAdd(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntAdd(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntAdd,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntBitAnd(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntBitAnd(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntBitAnd,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntBitLeftShift(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntBitLeftShift(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntBitLeftShift,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntBitOr(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntBitOr(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntBitOr,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntBitRightShift(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntBitRightShift(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntBitRightShift,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntBitXor(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntBitXor(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntBitXor,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntDiv(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntDiv(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntDiv,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntMod(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntMod(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntMod,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntMul(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntMul(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntMul,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function IntSub(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT IntSub(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathIntSub,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function POWER(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT POWER(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathPower,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function LOG(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT LOG(c.value) FROM c`,
+			parsers.FunctionCallMathLog,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function LOG(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT LOG(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathLog,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function NumberBin(ex)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT NumberBin(c.value) FROM c`,
+			parsers.FunctionCallMathNumberBin,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function NumberBin(ex1, ex2)", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT NumberBin(c.value, c.secondValue) FROM c`,
+			parsers.FunctionCallMathNumberBin,
+			[]interface{}{
+				parsers.SelectItem{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				parsers.SelectItem{
+					Path: []string{"c", "secondValue"},
+					Type: parsers.SelectItemTypeField,
+				},
+			},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function PI()", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT PI() FROM c`,
+			parsers.FunctionCallMathPi,
+			[]interface{}{},
+			"c",
+		)
+	})
+
+	t.Run("Should parse function RAND()", func(t *testing.T) {
+		testMathFunctionParse(
+			t,
+			`SELECT RAND() FROM c`,
+			parsers.FunctionCallMathRand,
+			[]interface{}{},
+			"c",
+		)
+	})
+}
+
+func testMathFunctionParse(
+	t *testing.T,
+	query string,
+	expectedFunctionType parsers.FunctionCallType,
+	expectedArguments []interface{},
+	expectedTable string,
+) {
+	testQueryParse(
+		t,
+		query,
+		parsers.SelectStmt{
+			SelectItems: []parsers.SelectItem{
+				{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type:      expectedFunctionType,
+						Arguments: expectedArguments,
+					},
+				},
+			},
+			Table: parsers.Table{Value: expectedTable},
+		},
+	)
+}
--- a/parsers/nosql/misc_test.go
+++ b/parsers/nosql/misc_test.go
@@ -122,4 +122,25 @@ func Test_Parse(t *testing.T) {
 			},
 		)
 	})
+
+	t.Run("Should parse IN selector", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT c.id FROM c IN c.tags`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Path: []string{"c", "id"},
+						Type: parsers.SelectItemTypeField,
+					},
+				},
+				Table: parsers.Table{
+					Value: "c",
+					SelectItem: parsers.SelectItem{
+						Path: []string{"c", "tags"},
+					},
+				},
+			},
+		)
+	})
 }
--- a/parsers/nosql/nosql.go
+++ b/parsers/nosql/nosql.go
--- a/parsers/nosql/nosql.peg
+++ b/parsers/nosql/nosql.peg
@@ -4,14 +4,24 @@ package nosql
 import "github.com/pikami/cosmium/parsers"

 func makeSelectStmt(
-	columns, table,
+	columns, fromClause, joinItems,
 	whereClause interface{}, distinctClause interface{},
 	count interface{}, groupByClause interface{}, orderList interface{},
 	offsetClause interface{},
 ) (parsers.SelectStmt, error) {
 	selectStmt := parsers.SelectStmt{
 		SelectItems: columns.([]parsers.SelectItem),
-		Table:       table.(parsers.Table),
+	}
+
+    if fromTable, ok := fromClause.(parsers.Table); ok {
+        selectStmt.Table = fromTable
+    }
+
+    if joinItemsArray, ok := joinItems.([]interface{}); ok && len(joinItemsArray) > 0 {
+		selectStmt.JoinItems = make([]parsers.JoinItem, len(joinItemsArray))
+		for i, joinItem := range joinItemsArray {
+			selectStmt.JoinItems[i] = joinItem.(parsers.JoinItem)
+		}
 	}

 	switch v := whereClause.(type) {
@@ -48,6 +58,21 @@ func makeSelectStmt(
 	return selectStmt, nil
 }

+func makeJoin(table interface{}, column interface{}) (parsers.JoinItem, error) {
+	joinItem := parsers.JoinItem{}
+
+	if selectItem, isSelectItem := column.(parsers.SelectItem); isSelectItem {
+		joinItem.SelectItem = selectItem
+		joinItem.Table.Value = selectItem.Alias
+	}
+
+	if tableTyped, isTable := table.(parsers.Table); isTable {
+		joinItem.Table = tableTyped
+	}
+
+	return joinItem, nil
+}
+
 func makeSelectItem(name interface{}, path interface{}, selectItemType parsers.SelectItemType) (parsers.SelectItem, error) {
 	ps := path.([]interface{})

@@ -161,13 +186,15 @@ Input <- selectStmt:SelectStmt {

 SelectStmt <- Select ws
    distinctClause:DistinctClause? ws
-    topClause:TopClause? ws columns:Selection ws
-    From ws table:TableName ws
+    topClause:TopClause? ws
+    columns:Selection ws
+    fromClause:FromClause? ws
+    joinClauses:(ws join:JoinClause { return join, nil })* ws
    whereClause:(ws Where ws condition:Condition { return condition, nil })?
    groupByClause:(ws GroupBy ws columns:ColumnList { return columns, nil })?
-    orderByClause:OrderByClause?
-    offsetClause:OffsetClause? {
-    return makeSelectStmt(columns, table, whereClause,
+    orderByClause:(ws order:OrderByClause { return order, nil })?
+    offsetClause:(ws offset:OffsetClause { return offset, nil })? {
+    return makeSelectStmt(columns, fromClause, joinClauses, whereClause,
        distinctClause, topClause, groupByClause, orderByClause, offsetClause)
 }

@@ -177,6 +204,51 @@ TopClause <- Top ws count:Integer {
    return count, nil
 }

+FromClause <- From ws table:TableName selectItem:(ws "IN"i ws column:SelectItem { return column, nil })? {
+    tableTyped := table.(parsers.Table)
+
+    if selectItem != nil {
+	    tableTyped.SelectItem = selectItem.(parsers.SelectItem)
+	}
+
+	return tableTyped, nil
+} / From ws subQuery:SubQuerySelectItem {
+    subQueryTyped := subQuery.(parsers.SelectItem)
+	table := parsers.Table{
+		Value: subQueryTyped.Alias,
+		SelectItem: subQueryTyped,
+	}
+	return table, nil
+}
+
+SubQuery <- exists:(exists:Exists ws { return exists, nil })? "(" ws selectStmt:SelectStmt ws ")" {
+    if selectStatement, isGoodValue := selectStmt.(parsers.SelectStmt); isGoodValue {
+        selectStatement.Exists = exists != nil
+        return selectStatement, nil
+    }
+
+    return selectStmt, nil
+}
+
+SubQuerySelectItem <- subQuery:SubQuery asClause:(ws alias:AsClause { return alias, nil })? {
+    selectItem := parsers.SelectItem{
+        Type: parsers.SelectItemTypeSubQuery,
+        Value: subQuery,
+    }
+
+    if tableName, isString := asClause.(string); isString {
+        selectItem.Alias = tableName
+    }
+
+    return selectItem, nil
+}
+
+JoinClause <- Join ws table:TableName ws "IN"i ws column:SelectItem {
+    return makeJoin(table, column)
+} / Join ws subQuery:SubQuerySelectItem {
+    return makeJoin(nil, subQuery)
+}
+
 OffsetClause <- "OFFSET"i ws offset:IntegerLiteral ws "LIMIT"i ws limit:IntegerLiteral {
    return []interface{}{offset.(parsers.Constant).Value, limit.(parsers.Constant).Value}, nil
 }
@@ -221,7 +293,7 @@ SelectProperty <- name:Identifier path:(DotFieldAccess / ArrayFieldAccess)* {
    return makeSelectItem(name, path, parsers.SelectItemTypeField)
 }

-SelectItem <- selectItem:(Literal / FunctionCall / SelectArray / SelectObject / SelectProperty) asClause:AsClause? {
+SelectItem <- selectItem:(SubQuerySelectItem / Literal / FunctionCall / SelectArray / SelectObject / SelectProperty) asClause:AsClause? {
    var itemResult parsers.SelectItem
    switch typedValue := selectItem.(type) {
    case parsers.SelectItem:
@@ -251,9 +323,8 @@ DotFieldAccess <- "." id:Identifier {
    return id, nil
 }

-ArrayFieldAccess <- "[\"" id:Identifier "\"]" {
-    return id, nil
-}
+ArrayFieldAccess <- "[\"" id:Identifier "\"]" { return id, nil }
+  / "[" id:Integer "]" { return strconv.Itoa(id.(int)), nil }

 Identifier <- [a-zA-Z_][a-zA-Z0-9_]* {
    return string(c.text), nil
@@ -301,11 +372,15 @@ As <- "AS"i

 From <- "FROM"i

+Join <- "JOIN"i
+
+Exists <- "EXISTS"i
+
 Where <- "WHERE"i

 And <- "AND"i

-Or <- "OR"i
+Or <- "OR"i wss

 GroupBy <- "GROUP"i ws "BY"i

@@ -344,6 +419,7 @@ FunctionCall <- StringFunctions
    / ArrayFunctions
    / InFunction
    / AggregateFunctions
+    / MathFunctions

 StringFunctions <- StringEqualsExpression
    / ToStringExpression
@@ -385,6 +461,43 @@ ArrayFunctions <- ArrayConcatExpression
    / SetIntersectExpression
    / SetUnionExpression

+MathFunctions <- MathAbsExpression
+    / MathAcosExpression
+    / MathAsinExpression
+    / MathAtanExpression
+    / MathCeilingExpression
+    / MathCosExpression
+    / MathCotExpression
+    / MathDegreesExpression
+    / MathExpExpression
+    / MathFloorExpression
+    / MathIntBitNotExpression
+    / MathLog10Expression
+    / MathRadiansExpression
+    / MathRoundExpression
+    / MathSignExpression
+    / MathSinExpression
+    / MathSqrtExpression
+    / MathSquareExpression
+    / MathTanExpression
+    / MathTruncExpression
+    / MathAtn2Expression
+    / MathIntAddExpression
+    / MathIntBitAndExpression
+    / MathIntBitLeftShiftExpression
+    / MathIntBitOrExpression
+    / MathIntBitRightShiftExpression
+    / MathIntBitXorExpression
+    / MathIntDivExpression
+    / MathIntModExpression
+    / MathIntMulExpression
+    / MathIntSubExpression
+    / MathPowerExpression
+    / MathLogExpression
+    / MathNumberBinExpression
+    / MathPiExpression
+    / MathRandExpression
+
 UpperExpression <- "UPPER"i ws "(" ex:SelectItem ")" {
    return createFunctionCall(parsers.FunctionCallUpper, []interface{}{ex})
 }
@@ -528,6 +641,49 @@ SetUnionExpression <- "SetUnion"i ws "(" ws set1:SelectItem ws "," ws set2:Selec
    return createFunctionCall(parsers.FunctionCallSetUnion, []interface{}{set1, set2})
 }

+MathAbsExpression <- "ABS"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathAbs, []interface{}{ex}) }
+MathAcosExpression <- "ACOS"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathAcos, []interface{}{ex}) }
+MathAsinExpression <- "ASIN"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathAsin, []interface{}{ex}) }
+MathAtanExpression <- "ATAN"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathAtan, []interface{}{ex}) }
+MathCeilingExpression <- "CEILING"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathCeiling, []interface{}{ex}) }
+MathCosExpression <- "COS"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathCos, []interface{}{ex}) }
+MathCotExpression <- "COT"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathCot, []interface{}{ex}) }
+MathDegreesExpression <- "DEGREES"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathDegrees, []interface{}{ex}) }
+MathExpExpression <- "EXP"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathExp, []interface{}{ex}) }
+MathFloorExpression <- "FLOOR"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathFloor, []interface{}{ex}) }
+MathIntBitNotExpression <- "IntBitNot"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntBitNot, []interface{}{ex}) }
+MathLog10Expression <- "LOG10"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathLog10, []interface{}{ex}) }
+MathRadiansExpression <- "RADIANS"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathRadians, []interface{}{ex}) }
+MathRoundExpression <- "ROUND"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathRound, []interface{}{ex}) }
+MathSignExpression <- "SIGN"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathSign, []interface{}{ex}) }
+MathSinExpression <- "SIN"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathSin, []interface{}{ex}) }
+MathSqrtExpression <- "SQRT"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathSqrt, []interface{}{ex}) }
+MathSquareExpression <- "SQUARE"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathSquare, []interface{}{ex}) }
+MathTanExpression <- "TAN"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathTan, []interface{}{ex}) }
+MathTruncExpression <- "TRUNC"i ws "(" ws ex:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathTrunc, []interface{}{ex}) }
+
+MathAtn2Expression <- "ATN2"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathAtn2, []interface{}{set1, set2}) }
+MathIntAddExpression <- "IntAdd"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntAdd, []interface{}{set1, set2}) }
+MathIntBitAndExpression <- "IntBitAnd"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntBitAnd, []interface{}{set1, set2}) }
+MathIntBitLeftShiftExpression <- "IntBitLeftShift"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntBitLeftShift, []interface{}{set1, set2}) }
+MathIntBitOrExpression <- "IntBitOr"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntBitOr, []interface{}{set1, set2}) }
+MathIntBitRightShiftExpression <- "IntBitRightShift"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntBitRightShift, []interface{}{set1, set2}) }
+MathIntBitXorExpression <- "IntBitXor"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntBitXor, []interface{}{set1, set2}) }
+MathIntDivExpression <- "IntDiv"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntDiv, []interface{}{set1, set2}) }
+MathIntModExpression <- "IntMod"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntMod, []interface{}{set1, set2}) }
+MathIntMulExpression <- "IntMul"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntMul, []interface{}{set1, set2}) }
+MathIntSubExpression <- "IntSub"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathIntSub, []interface{}{set1, set2}) }
+MathPowerExpression <- "POWER"i ws "(" ws set1:SelectItem ws "," ws set2:SelectItem ws ")" { return createFunctionCall(parsers.FunctionCallMathPower, []interface{}{set1, set2}) }
+
+MathLogExpression <- "LOG"i ws "(" ws ex1:SelectItem others:(ws "," ws ex:SelectItem { return ex, nil })* ws ")" {
+    return createFunctionCall(parsers.FunctionCallMathLog, append([]interface{}{ex1}, others.([]interface{})...))
+}
+MathNumberBinExpression <- "NumberBin"i ws "(" ws ex1:SelectItem others:(ws "," ws ex:SelectItem { return ex, nil })* ws ")" {
+    return createFunctionCall(parsers.FunctionCallMathNumberBin, append([]interface{}{ex1}, others.([]interface{})...))
+}
+MathPiExpression <- "PI"i ws "(" ws ")" { return createFunctionCall(parsers.FunctionCallMathPi, []interface{}{}) }
+MathRandExpression <- "RAND"i ws "(" ws ")" { return createFunctionCall(parsers.FunctionCallMathRand, []interface{}{}) }
+
 InFunction <- ex1:SelectProperty ws "IN"i ws "(" ws ex2:SelectItem others:(ws "," ws ex:SelectItem { return ex, nil })* ws ")" {
    return createFunctionCall(parsers.FunctionCallIn, append([]interface{}{ex1, ex2}, others.([]interface{})...))
 }
@@ -575,4 +731,6 @@ non_escape_character <- !(escape_character) char:.

 ws <- [ \t\n\r]*

+wss <- [ \t\n\r]+
+
 EOF <- !.
--- a/parsers/nosql/subquery_test.go
+++ b/parsers/nosql/subquery_test.go
@@ -0,0 +1,125 @@
+package nosql_test
+
+import (
+	"testing"
+
+	"github.com/pikami/cosmium/parsers"
+)
+
+func Test_Parse_SubQuery(t *testing.T) {
+
+	t.Run("Should parse FROM subquery", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT c.id FROM (SELECT VALUE cc["info"] FROM cc) AS c`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+				},
+				Table: parsers.Table{
+					Value: "c",
+					SelectItem: parsers.SelectItem{
+						Alias: "c",
+						Type:  parsers.SelectItemTypeSubQuery,
+						Value: parsers.SelectStmt{
+							Table: parsers.Table{Value: "cc"},
+							SelectItems: []parsers.SelectItem{
+								{Path: []string{"cc", "info"}, IsTopLevel: true},
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse JOIN subquery", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT c.id, cc.name FROM c JOIN (SELECT tag.name FROM tag IN c.tags) AS cc`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{Path: []string{"cc", "name"}},
+				},
+				Table: parsers.Table{
+					Value: "c",
+				},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{
+							Value: "cc",
+						},
+						SelectItem: parsers.SelectItem{
+							Alias: "cc",
+							Type:  parsers.SelectItemTypeSubQuery,
+							Value: parsers.SelectStmt{
+								SelectItems: []parsers.SelectItem{
+									{Path: []string{"tag", "name"}},
+								},
+								Table: parsers.Table{
+									Value: "tag",
+									SelectItem: parsers.SelectItem{
+										Path: []string{"c", "tags"},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse JOIN EXISTS subquery", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT c.id
+			FROM c
+			JOIN (
+				SELECT VALUE EXISTS(SELECT tag.name FROM tag IN c.tags)
+			) AS hasTags
+			WHERE hasTags`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+				},
+				Table: parsers.Table{
+					Value: "c",
+				},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{Value: "hasTags"},
+						SelectItem: parsers.SelectItem{
+							Alias: "hasTags",
+							Type:  parsers.SelectItemTypeSubQuery,
+							Value: parsers.SelectStmt{
+								SelectItems: []parsers.SelectItem{
+									{
+										IsTopLevel: true,
+										Type:       parsers.SelectItemTypeSubQuery,
+										Value: parsers.SelectStmt{
+											SelectItems: []parsers.SelectItem{
+												{Path: []string{"tag", "name"}},
+											},
+											Table: parsers.Table{
+												Value: "tag",
+												SelectItem: parsers.SelectItem{
+													Path: []string{"c", "tags"},
+												},
+											},
+											Exists: true,
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+				Filters: parsers.SelectItem{
+					Path: []string{"hasTags"},
+				},
+			},
+		)
+	})
+}
--- a/query_executors/memory_executor/aggregate_functions.go
+++ b/query_executors/memory_executor/aggregate_functions.go
@@ -6,21 +6,19 @@ import (
 	"github.com/pikami/cosmium/parsers"
 )

-func (c memoryExecutorContext) aggregate_Avg(arguments []interface{}, row RowType) interface{} {
+func (r rowContext) aggregate_Avg(arguments []interface{}) interface{} {
 	selectExpression := arguments[0].(parsers.SelectItem)
 	sum := 0.0
 	count := 0

-	if array, isArray := row.([]RowType); isArray {
-		for _, item := range array {
-			value := c.getFieldValue(selectExpression, item)
-			if numericValue, ok := value.(float64); ok {
-				sum += numericValue
-				count++
-			} else if numericValue, ok := value.(int); ok {
-				sum += float64(numericValue)
-				count++
-			}
+	for _, item := range r.grouppedRows {
+		value := item.resolveSelectItem(selectExpression)
+		if numericValue, ok := value.(float64); ok {
+			sum += numericValue
+			count++
+		} else if numericValue, ok := value.(int); ok {
+			sum += float64(numericValue)
+			count++
 		}
 	}

@@ -31,41 +29,37 @@ func (c memoryExecutorContext) aggregate_Avg(arguments []interface{}, row RowTyp
 	}
 }

-func (c memoryExecutorContext) aggregate_Count(arguments []interface{}, row RowType) interface{} {
+func (r rowContext) aggregate_Count(arguments []interface{}) interface{} {
 	selectExpression := arguments[0].(parsers.SelectItem)
 	count := 0

-	if array, isArray := row.([]RowType); isArray {
-		for _, item := range array {
-			value := c.getFieldValue(selectExpression, item)
-			if value != nil {
-				count++
-			}
+	for _, item := range r.grouppedRows {
+		value := item.resolveSelectItem(selectExpression)
+		if value != nil {
+			count++
 		}
 	}

 	return count
 }

-func (c memoryExecutorContext) aggregate_Max(arguments []interface{}, row RowType) interface{} {
+func (r rowContext) aggregate_Max(arguments []interface{}) interface{} {
 	selectExpression := arguments[0].(parsers.SelectItem)
 	max := 0.0
 	count := 0

-	if array, isArray := row.([]RowType); isArray {
-		for _, item := range array {
-			value := c.getFieldValue(selectExpression, item)
-			if numericValue, ok := value.(float64); ok {
-				if numericValue > max {
-					max = numericValue
-				}
-				count++
-			} else if numericValue, ok := value.(int); ok {
-				if float64(numericValue) > max {
-					max = float64(numericValue)
-				}
-				count++
+	for _, item := range r.grouppedRows {
+		value := item.resolveSelectItem(selectExpression)
+		if numericValue, ok := value.(float64); ok {
+			if numericValue > max {
+				max = numericValue
 			}
+			count++
+		} else if numericValue, ok := value.(int); ok {
+			if float64(numericValue) > max {
+				max = float64(numericValue)
+			}
+			count++
 		}
 	}

@@ -76,25 +70,23 @@ func (c memoryExecutorContext) aggregate_Max(arguments []interface{}, row RowTyp
 	}
 }

-func (c memoryExecutorContext) aggregate_Min(arguments []interface{}, row RowType) interface{} {
+func (r rowContext) aggregate_Min(arguments []interface{}) interface{} {
 	selectExpression := arguments[0].(parsers.SelectItem)
 	min := math.MaxFloat64
 	count := 0

-	if array, isArray := row.([]RowType); isArray {
-		for _, item := range array {
-			value := c.getFieldValue(selectExpression, item)
-			if numericValue, ok := value.(float64); ok {
-				if numericValue < min {
-					min = numericValue
-				}
-				count++
-			} else if numericValue, ok := value.(int); ok {
-				if float64(numericValue) < min {
-					min = float64(numericValue)
-				}
-				count++
+	for _, item := range r.grouppedRows {
+		value := item.resolveSelectItem(selectExpression)
+		if numericValue, ok := value.(float64); ok {
+			if numericValue < min {
+				min = numericValue
 			}
+			count++
+		} else if numericValue, ok := value.(int); ok {
+			if float64(numericValue) < min {
+				min = float64(numericValue)
+			}
+			count++
 		}
 	}

@@ -105,21 +97,19 @@ func (c memoryExecutorContext) aggregate_Min(arguments []interface{}, row RowTyp
 	}
 }

-func (c memoryExecutorContext) aggregate_Sum(arguments []interface{}, row RowType) interface{} {
+func (r rowContext) aggregate_Sum(arguments []interface{}) interface{} {
 	selectExpression := arguments[0].(parsers.SelectItem)
 	sum := 0.0
 	count := 0

-	if array, isArray := row.([]RowType); isArray {
-		for _, item := range array {
-			value := c.getFieldValue(selectExpression, item)
-			if numericValue, ok := value.(float64); ok {
-				sum += numericValue
-				count++
-			} else if numericValue, ok := value.(int); ok {
-				sum += float64(numericValue)
-				count++
-			}
+	for _, item := range r.grouppedRows {
+		value := item.resolveSelectItem(selectExpression)
+		if numericValue, ok := value.(float64); ok {
+			sum += numericValue
+			count++
+		} else if numericValue, ok := value.(int); ok {
+			sum += float64(numericValue)
+			count++
 		}
 	}

--- a/query_executors/memory_executor/array_functions.go
+++ b/query_executors/memory_executor/array_functions.go
@@ -7,17 +7,17 @@ import (
 	"github.com/pikami/cosmium/parsers"
 )

-func (c memoryExecutorContext) array_Concat(arguments []interface{}, row RowType) []interface{} {
+func (r rowContext) array_Concat(arguments []interface{}) []interface{} {
 	var result []interface{}
 	for _, arg := range arguments {
-		array := c.parseArray(arg, row)
+		array := r.parseArray(arg)
 		result = append(result, array...)
 	}
 	return result
 }

-func (c memoryExecutorContext) array_Length(arguments []interface{}, row RowType) int {
-	array := c.parseArray(arguments[0], row)
+func (r rowContext) array_Length(arguments []interface{}) int {
+	array := r.parseArray(arguments[0])
 	if array == nil {
 		return 0
 	}
@@ -25,15 +25,15 @@ func (c memoryExecutorContext) array_Length(arguments []interface{}, row RowType
 	return len(array)
 }

-func (c memoryExecutorContext) array_Slice(arguments []interface{}, row RowType) []interface{} {
+func (r rowContext) array_Slice(arguments []interface{}) []interface{} {
 	var ok bool
 	var start int
 	var length int
-	array := c.parseArray(arguments[0], row)
-	startEx := c.getFieldValue(arguments[1].(parsers.SelectItem), row)
+	array := r.parseArray(arguments[0])
+	startEx := r.resolveSelectItem(arguments[1].(parsers.SelectItem))

 	if arguments[2] != nil {
-		lengthEx := c.getFieldValue(arguments[2].(parsers.SelectItem), row)
+		lengthEx := r.resolveSelectItem(arguments[2].(parsers.SelectItem))

 		if length, ok = lengthEx.(int); !ok {
 			logger.Error("array_Slice - got length parameters of wrong type")
@@ -65,9 +65,9 @@ func (c memoryExecutorContext) array_Slice(arguments []interface{}, row RowType)
 	return array[start:end]
 }

-func (c memoryExecutorContext) set_Intersect(arguments []interface{}, row RowType) []interface{} {
-	set1 := c.parseArray(arguments[0], row)
-	set2 := c.parseArray(arguments[1], row)
+func (r rowContext) set_Intersect(arguments []interface{}) []interface{} {
+	set1 := r.parseArray(arguments[0])
+	set2 := r.parseArray(arguments[1])

 	intersection := make(map[interface{}]struct{})
 	if set1 == nil || set2 == nil {
@@ -88,9 +88,9 @@ func (c memoryExecutorContext) set_Intersect(arguments []interface{}, row RowTyp
 	return result
 }

-func (c memoryExecutorContext) set_Union(arguments []interface{}, row RowType) []interface{} {
-	set1 := c.parseArray(arguments[0], row)
-	set2 := c.parseArray(arguments[1], row)
+func (r rowContext) set_Union(arguments []interface{}) []interface{} {
+	set1 := r.parseArray(arguments[0])
+	set2 := r.parseArray(arguments[1])

 	var result []interface{}
 	union := make(map[interface{}]struct{})
@@ -111,9 +111,9 @@ func (c memoryExecutorContext) set_Union(arguments []interface{}, row RowType) [
 	return result
 }

-func (c memoryExecutorContext) parseArray(argument interface{}, row RowType) []interface{} {
+func (r rowContext) parseArray(argument interface{}) []interface{} {
 	exItem := argument.(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	arrValue := reflect.ValueOf(ex)
 	if arrValue.Kind() != reflect.Slice {
--- a/query_executors/memory_executor/join_test.go
+++ b/query_executors/memory_executor/join_test.go
@@ -0,0 +1,86 @@
+package memoryexecutor_test
+
+import (
+	"testing"
+
+	"github.com/pikami/cosmium/parsers"
+	memoryexecutor "github.com/pikami/cosmium/query_executors/memory_executor"
+)
+
+func Test_Execute_Joins(t *testing.T) {
+	mockData := []memoryexecutor.RowType{
+		map[string]interface{}{
+			"id": 1,
+			"tags": []map[string]interface{}{
+				{"name": "a"},
+				{"name": "b"},
+			},
+		},
+		map[string]interface{}{
+			"id": 2,
+			"tags": []map[string]interface{}{
+				{"name": "b"},
+				{"name": "c"},
+			},
+		},
+	}
+
+	t.Run("Should execute JOIN on 'tags'", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{Path: []string{"cc", "name"}},
+				},
+				Table: parsers.Table{Value: "c"},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{
+							Value: "cc",
+						},
+						SelectItem: parsers.SelectItem{
+							Path: []string{"c", "tags"},
+						},
+					},
+				},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": 1, "name": "a"},
+				map[string]interface{}{"id": 1, "name": "b"},
+				map[string]interface{}{"id": 2, "name": "b"},
+				map[string]interface{}{"id": 2, "name": "c"},
+			},
+		)
+	})
+
+	t.Run("Should execute JOIN VALUE on 'tags'", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"cc"}, IsTopLevel: true},
+				},
+				Table: parsers.Table{Value: "c"},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{
+							Value: "cc",
+						},
+						SelectItem: parsers.SelectItem{
+							Path: []string{"c", "tags"},
+						},
+					},
+				},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"name": "a"},
+				map[string]interface{}{"name": "b"},
+				map[string]interface{}{"name": "b"},
+				map[string]interface{}{"name": "c"},
+			},
+		)
+	})
+}
--- a/query_executors/memory_executor/math_functions.go
+++ b/query_executors/memory_executor/math_functions.go
@@ -0,0 +1,615 @@
+package memoryexecutor
+
+import (
+	"math"
+	"math/rand"
+
+	"github.com/pikami/cosmium/internal/logger"
+	"github.com/pikami/cosmium/parsers"
+)
+
+func (r rowContext) math_Abs(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	switch val := ex.(type) {
+	case float64:
+		return math.Abs(val)
+	case int:
+		if val < 0 {
+			return -val
+		}
+		return val
+	default:
+		logger.Debug("math_Abs - got parameters of wrong type")
+		return 0
+	}
+}
+
+func (r rowContext) math_Acos(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Acos - got parameters of wrong type")
+		return nil
+	}
+
+	if val < -1 || val > 1 {
+		logger.Debug("math_Acos - value out of domain for acos")
+		return nil
+	}
+
+	return math.Acos(val) * 180 / math.Pi
+}
+
+func (r rowContext) math_Asin(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Asin - got parameters of wrong type")
+		return nil
+	}
+
+	if val < -1 || val > 1 {
+		logger.Debug("math_Asin - value out of domain for acos")
+		return nil
+	}
+
+	return math.Asin(val) * 180 / math.Pi
+}
+
+func (r rowContext) math_Atan(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Atan - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Atan(val) * 180 / math.Pi
+}
+
+func (r rowContext) math_Ceiling(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	switch val := ex.(type) {
+	case float64:
+		return math.Ceil(val)
+	case int:
+		return val
+	default:
+		logger.Debug("math_Ceiling - got parameters of wrong type")
+		return 0
+	}
+}
+
+func (r rowContext) math_Cos(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Cos - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Cos(val)
+}
+
+func (r rowContext) math_Cot(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Cot - got parameters of wrong type")
+		return nil
+	}
+
+	if val == 0 {
+		logger.Debug("math_Cot - cotangent undefined for zero")
+		return nil
+	}
+
+	return 1 / math.Tan(val)
+}
+
+func (r rowContext) math_Degrees(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Degrees - got parameters of wrong type")
+		return nil
+	}
+
+	return val * (180 / math.Pi)
+}
+
+func (r rowContext) math_Exp(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Exp - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Exp(val)
+}
+
+func (r rowContext) math_Floor(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	switch val := ex.(type) {
+	case float64:
+		return math.Floor(val)
+	case int:
+		return val
+	default:
+		logger.Debug("math_Floor - got parameters of wrong type")
+		return 0
+	}
+}
+
+func (r rowContext) math_IntBitNot(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	switch val := ex.(type) {
+	case int:
+		return ^val
+	default:
+		logger.Debug("math_IntBitNot - got parameters of wrong type")
+		return nil
+	}
+}
+
+func (r rowContext) math_Log10(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Log10 - got parameters of wrong type")
+		return nil
+	}
+
+	if val <= 0 {
+		logger.Debug("math_Log10 - value must be greater than 0")
+		return nil
+	}
+
+	return math.Log10(val)
+}
+
+func (r rowContext) math_Radians(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Radians - got parameters of wrong type")
+		return nil
+	}
+
+	return val * (math.Pi / 180.0)
+}
+
+func (r rowContext) math_Round(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	switch val := ex.(type) {
+	case float64:
+		return math.Round(val)
+	case int:
+		return val
+	default:
+		logger.Debug("math_Round - got parameters of wrong type")
+		return nil
+	}
+}
+
+func (r rowContext) math_Sign(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	switch val := ex.(type) {
+	case float64:
+		if val > 0 {
+			return 1
+		} else if val < 0 {
+			return -1
+		} else {
+			return 0
+		}
+	case int:
+		if val > 0 {
+			return 1
+		} else if val < 0 {
+			return -1
+		} else {
+			return 0
+		}
+	default:
+		logger.Debug("math_Sign - got parameters of wrong type")
+		return nil
+	}
+}
+
+func (r rowContext) math_Sin(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Sin - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Sin(val)
+}
+
+func (r rowContext) math_Sqrt(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Sqrt - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Sqrt(val)
+}
+
+func (r rowContext) math_Square(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Square - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Pow(val, 2)
+}
+
+func (r rowContext) math_Tan(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	val, valIsNumber := numToFloat64(ex)
+	if !valIsNumber {
+		logger.Debug("math_Tan - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Tan(val)
+}
+
+func (r rowContext) math_Trunc(arguments []interface{}) interface{} {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem)
+
+	switch val := ex.(type) {
+	case float64:
+		return math.Trunc(val)
+	case int:
+		return float64(val)
+	default:
+		logger.Debug("math_Trunc - got parameters of wrong type")
+		return nil
+	}
+}
+
+func (r rowContext) math_Atn2(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	y, yIsNumber := numToFloat64(ex1)
+	x, xIsNumber := numToFloat64(ex2)
+
+	if !yIsNumber || !xIsNumber {
+		logger.Debug("math_Atn2 - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Atan2(y, x)
+}
+
+func (r rowContext) math_IntAdd(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	ex1Number, ex1IsNumber := numToInt(ex1)
+	ex2Number, ex2IsNumber := numToInt(ex2)
+
+	if !ex1IsNumber || !ex2IsNumber {
+		logger.Debug("math_IntAdd - got parameters of wrong type")
+		return nil
+	}
+
+	return ex1Number + ex2Number
+}
+
+func (r rowContext) math_IntBitAnd(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	ex1Int, ex1IsInt := numToInt(ex1)
+	ex2Int, ex2IsInt := numToInt(ex2)
+
+	if !ex1IsInt || !ex2IsInt {
+		logger.Debug("math_IntBitAnd - got parameters of wrong type")
+		return nil
+	}
+
+	return ex1Int & ex2Int
+}
+
+func (r rowContext) math_IntBitLeftShift(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := numToInt(ex1)
+	num2, num2IsInt := numToInt(ex2)
+
+	if !num1IsInt || !num2IsInt {
+		logger.Debug("math_IntBitLeftShift - got parameters of wrong type")
+		return nil
+	}
+
+	return num1 << uint(num2)
+}
+
+func (r rowContext) math_IntBitOr(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := ex1.(int)
+	num2, num2IsInt := ex2.(int)
+
+	if !num1IsInt || !num2IsInt {
+		logger.Debug("math_IntBitOr - got parameters of wrong type")
+		return nil
+	}
+
+	return num1 | num2
+}
+
+func (r rowContext) math_IntBitRightShift(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := numToInt(ex1)
+	num2, num2IsInt := numToInt(ex2)
+
+	if !num1IsInt || !num2IsInt {
+		logger.Debug("math_IntBitRightShift - got parameters of wrong type")
+		return nil
+	}
+
+	return num1 >> uint(num2)
+}
+
+func (r rowContext) math_IntBitXor(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := ex1.(int)
+	num2, num2IsInt := ex2.(int)
+
+	if !num1IsInt || !num2IsInt {
+		logger.Debug("math_IntBitXor - got parameters of wrong type")
+		return nil
+	}
+
+	return num1 ^ num2
+}
+
+func (r rowContext) math_IntDiv(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := ex1.(int)
+	num2, num2IsInt := ex2.(int)
+
+	if !num1IsInt || !num2IsInt || num2 == 0 {
+		logger.Debug("math_IntDiv - got parameters of wrong type or divide by zero")
+		return nil
+	}
+
+	return num1 / num2
+}
+
+func (r rowContext) math_IntMul(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := ex1.(int)
+	num2, num2IsInt := ex2.(int)
+
+	if !num1IsInt || !num2IsInt {
+		logger.Debug("math_IntMul - got parameters of wrong type")
+		return nil
+	}
+
+	return num1 * num2
+}
+
+func (r rowContext) math_IntSub(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := ex1.(int)
+	num2, num2IsInt := ex2.(int)
+
+	if !num1IsInt || !num2IsInt {
+		logger.Debug("math_IntSub - got parameters of wrong type")
+		return nil
+	}
+
+	return num1 - num2
+}
+
+func (r rowContext) math_IntMod(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	num1, num1IsInt := ex1.(int)
+	num2, num2IsInt := ex2.(int)
+
+	if !num1IsInt || !num2IsInt || num2 == 0 {
+		logger.Debug("math_IntMod - got parameters of wrong type or divide by zero")
+		return nil
+	}
+
+	return num1 % num2
+}
+
+func (r rowContext) math_Power(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	exItem2 := arguments[1].(parsers.SelectItem)
+	ex1 := r.resolveSelectItem(exItem1)
+	ex2 := r.resolveSelectItem(exItem2)
+
+	base, baseIsNumber := numToFloat64(ex1)
+	exponent, exponentIsNumber := numToFloat64(ex2)
+
+	if !baseIsNumber || !exponentIsNumber {
+		logger.Debug("math_Power - got parameters of wrong type")
+		return nil
+	}
+
+	return math.Pow(base, exponent)
+}
+
+func (r rowContext) math_Log(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem1)
+
+	var base float64 = math.E
+	if len(arguments) > 1 {
+		exItem2 := arguments[1].(parsers.SelectItem)
+		baseValueObject := r.resolveSelectItem(exItem2)
+		baseValue, baseValueIsNumber := numToFloat64(baseValueObject)
+
+		if !baseValueIsNumber {
+			logger.Debug("math_Log - base parameter must be a numeric value")
+			return nil
+		}
+
+		if baseValue > 0 && baseValue != 1 {
+			base = baseValue
+		} else {
+			logger.Debug("math_Log - base must be greater than 0 and not equal to 1")
+			return nil
+		}
+	}
+
+	num, numIsNumber := numToFloat64(ex)
+	if !numIsNumber || num <= 0 {
+		logger.Debug("math_Log - parameter must be a positive numeric value")
+		return nil
+	}
+
+	return math.Log(num) / math.Log(base)
+}
+
+func (r rowContext) math_NumberBin(arguments []interface{}) interface{} {
+	exItem1 := arguments[0].(parsers.SelectItem)
+	ex := r.resolveSelectItem(exItem1)
+
+	binSize := 1.0
+
+	if len(arguments) > 1 {
+		exItem2 := arguments[1].(parsers.SelectItem)
+		binSizeValueObject := r.resolveSelectItem(exItem2)
+		binSizeValue, binSizeValueIsNumber := numToFloat64(binSizeValueObject)
+
+		if !binSizeValueIsNumber {
+			logger.Debug("math_NumberBin - base parameter must be a numeric value")
+			return nil
+		}
+
+		if binSizeValue != 0 {
+			binSize = binSizeValue
+		} else {
+			logger.Debug("math_NumberBin - base must not be equal to 0")
+			return nil
+		}
+	}
+
+	num, numIsNumber := numToFloat64(ex)
+	if !numIsNumber {
+		logger.Debug("math_NumberBin - parameter must be a numeric value")
+		return nil
+	}
+
+	return math.Floor(num/binSize) * binSize
+}
+
+func (r rowContext) math_Pi() interface{} {
+	return math.Pi
+}
+
+func (r rowContext) math_Rand() interface{} {
+	return rand.Float64()
+}
+
+func numToInt(ex interface{}) (int, bool) {
+	switch val := ex.(type) {
+	case float64:
+		return int(val), true
+	case int:
+		return val, true
+	default:
+		return 0, false
+	}
+}
+
+func numToFloat64(num interface{}) (float64, bool) {
+	switch val := num.(type) {
+	case float64:
+		return val, true
+	case int:
+		return float64(val), true
+	default:
+		return 0, false
+	}
+}
--- a/query_executors/memory_executor/math_functions_test.go
+++ b/query_executors/memory_executor/math_functions_test.go
@@ -0,0 +1,269 @@
+package memoryexecutor_test
+
+import (
+	"math"
+	"testing"
+
+	"github.com/pikami/cosmium/parsers"
+	memoryexecutor "github.com/pikami/cosmium/query_executors/memory_executor"
+)
+
+func Test_Execute_MathFunctions(t *testing.T) {
+	mockData := []memoryexecutor.RowType{
+		map[string]interface{}{"id": 1, "value": 0.0},
+		map[string]interface{}{"id": 2, "value": 1.0},
+		map[string]interface{}{"id": 3, "value": -1.0},
+		map[string]interface{}{"id": 4, "value": 0.5},
+		map[string]interface{}{"id": 5, "value": -0.5},
+		map[string]interface{}{"id": 6, "value": 0.707},
+		map[string]interface{}{"id": 7, "value": -0.707},
+		map[string]interface{}{"id": 8, "value": 0.866},
+		map[string]interface{}{"id": 9, "value": -0.866},
+	}
+
+	mockDataInts := []memoryexecutor.RowType{
+		map[string]interface{}{"id": 1, "value": -1},
+		map[string]interface{}{"id": 2, "value": 0},
+		map[string]interface{}{"id": 3, "value": 1},
+		map[string]interface{}{"id": 4, "value": 5},
+	}
+
+	t.Run("Should execute function ABS(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathAbs,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": 0.0},
+				map[string]interface{}{"value": 1.0, "result": 1.0},
+				map[string]interface{}{"value": -1.0, "result": 1.0},
+				map[string]interface{}{"value": 0.5, "result": 0.5},
+				map[string]interface{}{"value": -0.5, "result": 0.5},
+				map[string]interface{}{"value": 0.707, "result": 0.707},
+				map[string]interface{}{"value": -0.707, "result": 0.707},
+				map[string]interface{}{"value": 0.866, "result": 0.866},
+				map[string]interface{}{"value": -0.866, "result": 0.866},
+			},
+		)
+	})
+
+	t.Run("Should execute function ACOS(cosine)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathAcos,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": math.Acos(0.0) * 180 / math.Pi},
+				map[string]interface{}{"value": 1.0, "result": math.Acos(1.0) * 180 / math.Pi},
+				map[string]interface{}{"value": -1.0, "result": math.Acos(-1.0) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.5, "result": math.Acos(0.5) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.5, "result": math.Acos(-0.5) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.707, "result": math.Acos(0.707) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.707, "result": math.Acos(-0.707) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.866, "result": math.Acos(0.866) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.866, "result": math.Acos(-0.866) * 180 / math.Pi},
+			},
+		)
+	})
+
+	t.Run("Should execute function ASIN(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathAsin,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": math.Asin(0.0) * 180 / math.Pi},
+				map[string]interface{}{"value": 1.0, "result": math.Asin(1.0) * 180 / math.Pi},
+				map[string]interface{}{"value": -1.0, "result": math.Asin(-1.0) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.5, "result": math.Asin(0.5) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.5, "result": math.Asin(-0.5) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.707, "result": math.Asin(0.707) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.707, "result": math.Asin(-0.707) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.866, "result": math.Asin(0.866) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.866, "result": math.Asin(-0.866) * 180 / math.Pi},
+			},
+		)
+	})
+
+	t.Run("Should execute function ATAN(tangent)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathAtan,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": math.Atan(0.0) * 180 / math.Pi},
+				map[string]interface{}{"value": 1.0, "result": math.Atan(1.0) * 180 / math.Pi},
+				map[string]interface{}{"value": -1.0, "result": math.Atan(-1.0) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.5, "result": math.Atan(0.5) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.5, "result": math.Atan(-0.5) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.707, "result": math.Atan(0.707) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.707, "result": math.Atan(-0.707) * 180 / math.Pi},
+				map[string]interface{}{"value": 0.866, "result": math.Atan(0.866) * 180 / math.Pi},
+				map[string]interface{}{"value": -0.866, "result": math.Atan(-0.866) * 180 / math.Pi},
+			},
+		)
+	})
+
+	t.Run("Should execute function COS(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathCos,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": math.Cos(0.0)},
+				map[string]interface{}{"value": 1.0, "result": math.Cos(1.0)},
+				map[string]interface{}{"value": -1.0, "result": math.Cos(-1.0)},
+				map[string]interface{}{"value": 0.5, "result": math.Cos(0.5)},
+				map[string]interface{}{"value": -0.5, "result": math.Cos(-0.5)},
+				map[string]interface{}{"value": 0.707, "result": math.Cos(0.707)},
+				map[string]interface{}{"value": -0.707, "result": math.Cos(-0.707)},
+				map[string]interface{}{"value": 0.866, "result": math.Cos(0.866)},
+				map[string]interface{}{"value": -0.866, "result": math.Cos(-0.866)},
+			},
+		)
+	})
+
+	t.Run("Should execute function COT(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathCot,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": nil},
+				map[string]interface{}{"value": 1.0, "result": 1 / math.Tan(1.0)},
+				map[string]interface{}{"value": -1.0, "result": 1 / math.Tan(-1.0)},
+				map[string]interface{}{"value": 0.5, "result": 1 / math.Tan(0.5)},
+				map[string]interface{}{"value": -0.5, "result": 1 / math.Tan(-0.5)},
+				map[string]interface{}{"value": 0.707, "result": 1 / math.Tan(0.707)},
+				map[string]interface{}{"value": -0.707, "result": 1 / math.Tan(-0.707)},
+				map[string]interface{}{"value": 0.866, "result": 1 / math.Tan(0.866)},
+				map[string]interface{}{"value": -0.866, "result": 1 / math.Tan(-0.866)},
+			},
+		)
+	})
+
+	t.Run("Should execute function Degrees(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathDegrees,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": 0.0 * (180 / math.Pi)},
+				map[string]interface{}{"value": 1.0, "result": 1.0 * (180 / math.Pi)},
+				map[string]interface{}{"value": -1.0, "result": -1.0 * (180 / math.Pi)},
+				map[string]interface{}{"value": 0.5, "result": 0.5 * (180 / math.Pi)},
+				map[string]interface{}{"value": -0.5, "result": -0.5 * (180 / math.Pi)},
+				map[string]interface{}{"value": 0.707, "result": 0.707 * (180 / math.Pi)},
+				map[string]interface{}{"value": -0.707, "result": -0.707 * (180 / math.Pi)},
+				map[string]interface{}{"value": 0.866, "result": 0.866 * (180 / math.Pi)},
+				map[string]interface{}{"value": -0.866, "result": -0.866 * (180 / math.Pi)},
+			},
+		)
+	})
+
+	t.Run("Should execute function EXP(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathExp,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": math.Exp(0.0)},
+				map[string]interface{}{"value": 1.0, "result": math.Exp(1.0)},
+				map[string]interface{}{"value": -1.0, "result": math.Exp(-1.0)},
+				map[string]interface{}{"value": 0.5, "result": math.Exp(0.5)},
+				map[string]interface{}{"value": -0.5, "result": math.Exp(-0.5)},
+				map[string]interface{}{"value": 0.707, "result": math.Exp(0.707)},
+				map[string]interface{}{"value": -0.707, "result": math.Exp(-0.707)},
+				map[string]interface{}{"value": 0.866, "result": math.Exp(0.866)},
+				map[string]interface{}{"value": -0.866, "result": math.Exp(-0.866)},
+			},
+		)
+	})
+
+	t.Run("Should execute function FLOOR(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathFloor,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": math.Floor(0.0)},
+				map[string]interface{}{"value": 1.0, "result": math.Floor(1.0)},
+				map[string]interface{}{"value": -1.0, "result": math.Floor(-1.0)},
+				map[string]interface{}{"value": 0.5, "result": math.Floor(0.5)},
+				map[string]interface{}{"value": -0.5, "result": math.Floor(-0.5)},
+				map[string]interface{}{"value": 0.707, "result": math.Floor(0.707)},
+				map[string]interface{}{"value": -0.707, "result": math.Floor(-0.707)},
+				map[string]interface{}{"value": 0.866, "result": math.Floor(0.866)},
+				map[string]interface{}{"value": -0.866, "result": math.Floor(-0.866)},
+			},
+		)
+	})
+
+	t.Run("Should execute function IntBitNot(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathIntBitNot,
+			mockDataInts,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": -1, "result": ^-1},
+				map[string]interface{}{"value": 0, "result": ^0},
+				map[string]interface{}{"value": 1, "result": ^1},
+				map[string]interface{}{"value": 5, "result": ^5},
+			},
+		)
+	})
+
+	t.Run("Should execute function LOG10(value)", func(t *testing.T) {
+		testMathFunctionExecute(
+			t,
+			parsers.FunctionCallMathLog10,
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"value": 0.0, "result": nil},
+				map[string]interface{}{"value": 1.0, "result": math.Log10(1.0)},
+				map[string]interface{}{"value": -1.0, "result": nil},
+				map[string]interface{}{"value": 0.5, "result": math.Log10(0.5)},
+				map[string]interface{}{"value": -0.5, "result": nil},
+				map[string]interface{}{"value": 0.707, "result": math.Log10(0.707)},
+				map[string]interface{}{"value": -0.707, "result": nil},
+				map[string]interface{}{"value": 0.866, "result": math.Log10(0.866)},
+				map[string]interface{}{"value": -0.866, "result": nil},
+			},
+		)
+	})
+}
+
+func testMathFunctionExecute(
+	t *testing.T,
+	functionCallType parsers.FunctionCallType,
+	data []memoryexecutor.RowType,
+	expectedData []memoryexecutor.RowType,
+) {
+	testQueryExecute(
+		t,
+		parsers.SelectStmt{
+			SelectItems: []parsers.SelectItem{
+				{
+					Path: []string{"c", "value"},
+					Type: parsers.SelectItemTypeField,
+				},
+				{
+					Alias: "result",
+					Type:  parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: functionCallType,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "value"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+			Table: parsers.Table{Value: "c"},
+		},
+		data,
+		expectedData,
+	)
+}
--- a/query_executors/memory_executor/memory_executor.go
+++ b/query_executors/memory_executor/memory_executor.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"reflect"
 	"sort"
+	"strconv"
 	"strings"

 	"github.com/pikami/cosmium/internal/logger"
@@ -12,326 +13,220 @@ import (
 )

 type RowType interface{}
-type ExpressionType interface{}
-
-type memoryExecutorContext struct {
-	parameters map[string]interface{}
+type rowContext struct {
+	tables       map[string]RowType
+	parameters   map[string]interface{}
+	grouppedRows []rowContext
 }

-func Execute(query parsers.SelectStmt, data []RowType) []RowType {
-	ctx := memoryExecutorContext{
-		parameters: query.Parameters,
+func ExecuteQuery(query parsers.SelectStmt, documents []RowType) []RowType {
+	currentDocuments := make([]rowContext, 0)
+	for _, doc := range documents {
+		currentDocuments = append(currentDocuments, resolveFrom(query, doc)...)
 	}

-	result := make([]RowType, 0)
+	// Handle JOINS
+	nextDocuments := make([]rowContext, 0)
+	for _, currentDocument := range currentDocuments {
+		rowContexts := currentDocument.handleJoin(query)
+		nextDocuments = append(nextDocuments, rowContexts...)
+	}
+	currentDocuments = nextDocuments

-	// Apply Filter
-	for _, row := range data {
-		if ctx.evaluateFilters(query.Filters, row) {
-			result = append(result, row)
+	// Apply filters
+	nextDocuments = make([]rowContext, 0)
+	for _, currentDocument := range currentDocuments {
+		if currentDocument.applyFilters(query.Filters) {
+			nextDocuments = append(nextDocuments, currentDocument)
 		}
 	}
+	currentDocuments = nextDocuments

 	// Apply order
-	if query.OrderExpressions != nil && len(query.OrderExpressions) > 0 {
-		ctx.orderBy(query.OrderExpressions, result)
+	if len(query.OrderExpressions) > 0 {
+		applyOrder(currentDocuments, query.OrderExpressions)
 	}

-	// Apply group
-	isGroupSelect := query.GroupBy != nil && len(query.GroupBy) > 0
-	if isGroupSelect {
-		result = ctx.groupBy(query, result)
+	// Apply group by
+	if len(query.GroupBy) > 0 {
+		currentDocuments = applyGroupBy(currentDocuments, query.GroupBy)
 	}

 	// Apply select
-	if !isGroupSelect {
-		selectedData := make([]RowType, 0)
-		if hasAggregateFunctions(query.SelectItems) {
-			// When can have aggregate functions without GROUP BY clause,
-			// we should aggregate all rows in that case
-			selectedData = append(selectedData, ctx.selectRow(query.SelectItems, result))
-		} else {
-			for _, row := range result {
-				selectedData = append(selectedData, ctx.selectRow(query.SelectItems, row))
-			}
-		}
-
-		result = selectedData
-	}
+	projectedDocuments := applyProjection(currentDocuments, query.SelectItems, query.GroupBy)

 	// Apply distinct
 	if query.Distinct {
-		result = deduplicate(result)
+		projectedDocuments = deduplicate(projectedDocuments)
 	}

 	// Apply result limit
-	if query.Count > 0 {
-		count := func() int {
-			if len(result) < query.Count {
-				return len(result)
-			}
-			return query.Count
-		}()
-		result = result[:count]
+	if query.Count > 0 && len(projectedDocuments) > query.Count {
+		projectedDocuments = projectedDocuments[:query.Count]
 	}

-	return result
+	return projectedDocuments
 }

-func (c memoryExecutorContext) selectRow(selectItems []parsers.SelectItem, row RowType) interface{} {
-	// When the first value is top level, select it instead
-	if len(selectItems) > 0 && selectItems[0].IsTopLevel {
-		return c.getFieldValue(selectItems[0], row)
-	}
-
-	// Construct a new row based on the selected columns
-	newRow := make(map[string]interface{})
-	for index, column := range selectItems {
-		destinationName := column.Alias
-		if destinationName == "" {
-			if len(column.Path) > 0 {
-				destinationName = column.Path[len(column.Path)-1]
-			} else {
-				destinationName = fmt.Sprintf("$%d", index+1)
-			}
+func resolveFrom(query parsers.SelectStmt, doc RowType) []rowContext {
+	initialRow, gotParentContext := doc.(rowContext)
+	if !gotParentContext {
+		var initialTableName string
+		if query.Table.SelectItem.Type == parsers.SelectItemTypeSubQuery {
+			initialTableName = query.Table.SelectItem.Value.(parsers.SelectStmt).Table.Value
 		}

-		newRow[destinationName] = c.getFieldValue(column, row)
+		if initialTableName == "" {
+			initialTableName = query.Table.Value
+		}
+
+		initialRow = rowContext{
+			parameters: query.Parameters,
+			tables: map[string]RowType{
+				initialTableName: doc,
+			},
+		}
 	}

-	return newRow
+	if query.Table.SelectItem.Path != nil || query.Table.SelectItem.Type == parsers.SelectItemTypeSubQuery {
+		destinationTableName := query.Table.SelectItem.Alias
+		if destinationTableName == "" {
+			destinationTableName = query.Table.Value
+		}
+
+		selectValue := initialRow.parseArray(query.Table.SelectItem)
+		rowContexts := make([]rowContext, len(selectValue))
+		for i, newRowData := range selectValue {
+			rowContexts[i].parameters = initialRow.parameters
+			rowContexts[i].tables = copyMap(initialRow.tables)
+			rowContexts[i].tables[destinationTableName] = newRowData
+		}
+		return rowContexts
+	}
+
+	return []rowContext{initialRow}
 }

-func (c memoryExecutorContext) evaluateFilters(expr ExpressionType, row RowType) bool {
-	if expr == nil {
+func (r rowContext) handleJoin(query parsers.SelectStmt) []rowContext {
+	currentDocuments := []rowContext{r}
+
+	for _, joinItem := range query.JoinItems {
+		nextDocuments := make([]rowContext, 0)
+		for _, currentDocument := range currentDocuments {
+			joinedItems := currentDocument.resolveJoinItemSelect(joinItem.SelectItem)
+			for _, joinedItem := range joinedItems {
+				tablesCopy := copyMap(currentDocument.tables)
+				tablesCopy[joinItem.Table.Value] = joinedItem
+				nextDocuments = append(nextDocuments, rowContext{
+					parameters: currentDocument.parameters,
+					tables:     tablesCopy,
+				})
+			}
+		}
+		currentDocuments = nextDocuments
+	}
+
+	return currentDocuments
+}
+
+func (r rowContext) resolveJoinItemSelect(selectItem parsers.SelectItem) []RowType {
+	if selectItem.Path != nil || selectItem.Type == parsers.SelectItemTypeSubQuery {
+		selectValue := r.parseArray(selectItem)
+		documents := make([]RowType, len(selectValue))
+		for i, newRowData := range selectValue {
+			documents[i] = newRowData
+		}
+		return documents
+	}
+
+	return []RowType{}
+}
+
+func (r rowContext) applyFilters(filters interface{}) bool {
+	if filters == nil {
 		return true
 	}

-	switch typedValue := expr.(type) {
+	switch typedFilters := filters.(type) {
 	case parsers.ComparisonExpression:
-		leftValue := c.getExpressionParameterValue(typedValue.Left, row)
-		rightValue := c.getExpressionParameterValue(typedValue.Right, row)
-
-		cmp := compareValues(leftValue, rightValue)
-		switch typedValue.Operation {
-		case "=":
-			return cmp == 0
-		case "!=":
-			return cmp != 0
-		case "<":
-			return cmp < 0
-		case ">":
-			return cmp > 0
-		case "<=":
-			return cmp <= 0
-		case ">=":
-			return cmp >= 0
-		}
+		return r.filters_ComparisonExpression(typedFilters)
 	case parsers.LogicalExpression:
-		var result bool
-		for i, expression := range typedValue.Expressions {
-			expressionResult := c.evaluateFilters(expression, row)
-			if i == 0 {
-				result = expressionResult
-			}
-
-			switch typedValue.Operation {
-			case parsers.LogicalExpressionTypeAnd:
-				result = result && expressionResult
-				if !result {
-					return false
-				}
-			case parsers.LogicalExpressionTypeOr:
-				result = result || expressionResult
-				if result {
-					return true
-				}
-			}
-		}
-		return result
+		return r.filters_LogicalExpression(typedFilters)
 	case parsers.Constant:
-		if value, ok := typedValue.Value.(bool); ok {
+		if value, ok := typedFilters.Value.(bool); ok {
 			return value
 		}
 		return false
 	case parsers.SelectItem:
-		resolvedValue := c.getFieldValue(typedValue, row)
+		resolvedValue := r.resolveSelectItem(typedFilters)
 		if value, ok := resolvedValue.(bool); ok {
 			return value
 		}
 	}
+
 	return false
 }

-func (c memoryExecutorContext) getFieldValue(field parsers.SelectItem, row RowType) interface{} {
-	if field.Type == parsers.SelectItemTypeArray {
-		arrayValue := make([]interface{}, 0)
-		for _, selectItem := range field.SelectItems {
-			arrayValue = append(arrayValue, c.getFieldValue(selectItem, row))
-		}
-		return arrayValue
+func (r rowContext) filters_ComparisonExpression(expression parsers.ComparisonExpression) bool {
+	leftExpression, leftExpressionOk := expression.Left.(parsers.SelectItem)
+	rightExpression, rightExpressionOk := expression.Right.(parsers.SelectItem)
+
+	if !leftExpressionOk || !rightExpressionOk {
+		logger.Error("ComparisonExpression has incorrect Left or Right type")
+		return false
 	}

-	if field.Type == parsers.SelectItemTypeObject {
-		objectValue := make(map[string]interface{})
-		for _, selectItem := range field.SelectItems {
-			objectValue[selectItem.Alias] = c.getFieldValue(selectItem, row)
-		}
-		return objectValue
+	leftValue := r.resolveSelectItem(leftExpression)
+	rightValue := r.resolveSelectItem(rightExpression)
+
+	cmp := compareValues(leftValue, rightValue)
+	switch expression.Operation {
+	case "=":
+		return cmp == 0
+	case "!=":
+		return cmp != 0
+	case "<":
+		return cmp < 0
+	case ">":
+		return cmp > 0
+	case "<=":
+		return cmp <= 0
+	case ">=":
+		return cmp >= 0
 	}

-	if field.Type == parsers.SelectItemTypeConstant {
-		var typedValue parsers.Constant
-		var ok bool
-		if typedValue, ok = field.Value.(parsers.Constant); !ok {
-			// TODO: Handle error
-			logger.Error("parsers.Constant has incorrect Value type")
+	return false
+}
+
+func (r rowContext) filters_LogicalExpression(expression parsers.LogicalExpression) bool {
+	var result bool
+	for i, subExpression := range expression.Expressions {
+		expressionResult := r.applyFilters(subExpression)
+		if i == 0 {
+			result = expressionResult
 		}

-		if typedValue.Type == parsers.ConstantTypeParameterConstant &&
-			c.parameters != nil {
-			if key, ok := typedValue.Value.(string); ok {
-				return c.parameters[key]
+		switch expression.Operation {
+		case parsers.LogicalExpressionTypeAnd:
+			result = result && expressionResult
+			if !result {
+				return false
 			}
-		}
-
-		return typedValue.Value
-	}
-
-	rowValue := row
-	if array, isArray := row.([]RowType); isArray {
-		rowValue = array[0]
-	}
-
-	if field.Type == parsers.SelectItemTypeFunctionCall {
-		var typedValue parsers.FunctionCall
-		var ok bool
-		if typedValue, ok = field.Value.(parsers.FunctionCall); !ok {
-			// TODO: Handle error
-			logger.Error("parsers.Constant has incorrect Value type")
-		}
-
-		switch typedValue.Type {
-		case parsers.FunctionCallStringEquals:
-			return c.strings_StringEquals(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallContains:
-			return c.strings_Contains(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallEndsWith:
-			return c.strings_EndsWith(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallStartsWith:
-			return c.strings_StartsWith(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallConcat:
-			return c.strings_Concat(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIndexOf:
-			return c.strings_IndexOf(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallToString:
-			return c.strings_ToString(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallUpper:
-			return c.strings_Upper(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallLower:
-			return c.strings_Lower(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallLeft:
-			return c.strings_Left(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallLength:
-			return c.strings_Length(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallLTrim:
-			return c.strings_LTrim(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallReplace:
-			return c.strings_Replace(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallReplicate:
-			return c.strings_Replicate(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallReverse:
-			return c.strings_Reverse(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallRight:
-			return c.strings_Right(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallRTrim:
-			return c.strings_RTrim(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallSubstring:
-			return c.strings_Substring(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallTrim:
-			return c.strings_Trim(typedValue.Arguments, rowValue)
-
-		case parsers.FunctionCallIsDefined:
-			return c.typeChecking_IsDefined(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsArray:
-			return c.typeChecking_IsArray(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsBool:
-			return c.typeChecking_IsBool(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsFiniteNumber:
-			return c.typeChecking_IsFiniteNumber(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsInteger:
-			return c.typeChecking_IsInteger(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsNull:
-			return c.typeChecking_IsNull(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsNumber:
-			return c.typeChecking_IsNumber(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsObject:
-			return c.typeChecking_IsObject(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsPrimitive:
-			return c.typeChecking_IsPrimitive(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallIsString:
-			return c.typeChecking_IsString(typedValue.Arguments, rowValue)
-
-		case parsers.FunctionCallArrayConcat:
-			return c.array_Concat(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallArrayLength:
-			return c.array_Length(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallArraySlice:
-			return c.array_Slice(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallSetIntersect:
-			return c.set_Intersect(typedValue.Arguments, rowValue)
-		case parsers.FunctionCallSetUnion:
-			return c.set_Union(typedValue.Arguments, rowValue)
-
-		case parsers.FunctionCallAggregateAvg:
-			return c.aggregate_Avg(typedValue.Arguments, row)
-		case parsers.FunctionCallAggregateCount:
-			return c.aggregate_Count(typedValue.Arguments, row)
-		case parsers.FunctionCallAggregateMax:
-			return c.aggregate_Max(typedValue.Arguments, row)
-		case parsers.FunctionCallAggregateMin:
-			return c.aggregate_Min(typedValue.Arguments, row)
-		case parsers.FunctionCallAggregateSum:
-			return c.aggregate_Sum(typedValue.Arguments, row)
-
-		case parsers.FunctionCallIn:
-			return c.misc_In(typedValue.Arguments, rowValue)
-		}
-	}
-
-	value := rowValue
-
-	if len(field.Path) > 1 {
-		for _, pathSegment := range field.Path[1:] {
-			if nestedValue, ok := value.(map[string]interface{}); ok {
-				value = nestedValue[pathSegment]
-			} else {
-				return nil
+		case parsers.LogicalExpressionTypeOr:
+			result = result || expressionResult
+			if result {
+				return true
 			}
 		}
 	}
-	return value
+	return result
 }

-func (c memoryExecutorContext) getExpressionParameterValue(
-	parameter interface{},
-	row RowType,
-) interface{} {
-	switch typedParameter := parameter.(type) {
-	case parsers.SelectItem:
-		return c.getFieldValue(typedParameter, row)
-	}
-
-	logger.Error("getExpressionParameterValue - got incorrect parameter type")
-
-	return nil
-}
-
-func (c memoryExecutorContext) orderBy(orderBy []parsers.OrderExpression, data []RowType) {
+func applyOrder(documents []rowContext, orderExpressions []parsers.OrderExpression) {
 	less := func(i, j int) bool {
-		for _, order := range orderBy {
-			val1 := c.getFieldValue(order.SelectItem, data[i])
-			val2 := c.getFieldValue(order.SelectItem, data[j])
+		for _, order := range orderExpressions {
+			val1 := documents[i].resolveSelectItem(order.SelectItem)
+			val2 := documents[j].resolveSelectItem(order.SelectItem)

 			cmp := compareValues(val1, val2)
 			if cmp != 0 {
@@ -344,48 +239,379 @@ func (c memoryExecutorContext) orderBy(orderBy []parsers.OrderExpression, data [
 		return i < j
 	}

-	sort.SliceStable(data, less)
+	sort.SliceStable(documents, less)
 }

-func (c memoryExecutorContext) groupBy(selectStmt parsers.SelectStmt, data []RowType) []RowType {
-	groupedRows := make(map[string][]RowType)
+func applyGroupBy(documents []rowContext, groupBy []parsers.SelectItem) []rowContext {
+	groupedRows := make(map[string][]rowContext)
 	groupedKeys := make([]string, 0)

-	// Group rows by group by columns
-	for _, row := range data {
-		key := c.generateGroupKey(selectStmt.GroupBy, row)
+	for _, row := range documents {
+		key := row.generateGroupByKey(groupBy)
 		if _, ok := groupedRows[key]; !ok {
 			groupedKeys = append(groupedKeys, key)
 		}
 		groupedRows[key] = append(groupedRows[key], row)
 	}

-	// Aggregate each group
-	aggregatedRows := make([]RowType, 0)
+	grouppedRows := make([]rowContext, 0)
 	for _, key := range groupedKeys {
-		groupRows := groupedRows[key]
-		aggregatedRow := c.aggregateGroup(selectStmt, groupRows)
-		aggregatedRows = append(aggregatedRows, aggregatedRow)
+		grouppedRowContext := rowContext{
+			tables:       groupedRows[key][0].tables,
+			parameters:   groupedRows[key][0].parameters,
+			grouppedRows: groupedRows[key],
+		}
+		grouppedRows = append(grouppedRows, grouppedRowContext)
 	}

-	return aggregatedRows
+	return grouppedRows
 }

-func (c memoryExecutorContext) generateGroupKey(groupByFields []parsers.SelectItem, row RowType) string {
+func (r rowContext) generateGroupByKey(groupBy []parsers.SelectItem) string {
 	var keyBuilder strings.Builder
-	for _, column := range groupByFields {
-		fieldValue := c.getFieldValue(column, row)
-		keyBuilder.WriteString(fmt.Sprintf("%v", fieldValue))
+	for _, selectItem := range groupBy {
+		value := r.resolveSelectItem(selectItem)
+		keyBuilder.WriteString(fmt.Sprintf("%v", value))
 		keyBuilder.WriteString(":")
 	}
-
 	return keyBuilder.String()
 }

-func (c memoryExecutorContext) aggregateGroup(selectStmt parsers.SelectStmt, groupRows []RowType) RowType {
-	aggregatedRow := c.selectRow(selectStmt.SelectItems, groupRows)
+func applyProjection(documents []rowContext, selectItems []parsers.SelectItem, groupBy []parsers.SelectItem) []RowType {
+	if len(documents) == 0 {
+		return []RowType{}
+	}

-	return aggregatedRow
+	if hasAggregateFunctions(selectItems) && len(groupBy) == 0 {
+		// When can have aggregate functions without GROUP BY clause,
+		// we should aggregate all rows in that case
+		rowContext := rowContext{
+			tables:       documents[0].tables,
+			parameters:   documents[0].parameters,
+			grouppedRows: documents,
+		}
+		return []RowType{rowContext.applyProjection(selectItems)}
+	}
+
+	projectedDocuments := make([]RowType, len(documents))
+	for index, row := range documents {
+		projectedDocuments[index] = row.applyProjection(selectItems)
+	}
+
+	return projectedDocuments
+}
+
+func (r rowContext) applyProjection(selectItems []parsers.SelectItem) RowType {
+	// When the first value is top level, select it instead
+	if len(selectItems) > 0 && selectItems[0].IsTopLevel {
+		return r.resolveSelectItem(selectItems[0])
+	}
+
+	// Construct a new row based on the selected columns
+	row := make(map[string]interface{})
+	for index, selectItem := range selectItems {
+		destinationName := selectItem.Alias
+		if destinationName == "" {
+			if len(selectItem.Path) > 0 {
+				destinationName = selectItem.Path[len(selectItem.Path)-1]
+			} else {
+				destinationName = fmt.Sprintf("$%d", index+1)
+			}
+		}
+
+		row[destinationName] = r.resolveSelectItem(selectItem)
+	}
+
+	return row
+}
+
+func (r rowContext) resolveSelectItem(selectItem parsers.SelectItem) interface{} {
+	if selectItem.Type == parsers.SelectItemTypeArray {
+		return r.selectItem_SelectItemTypeArray(selectItem)
+	}
+
+	if selectItem.Type == parsers.SelectItemTypeObject {
+		return r.selectItem_SelectItemTypeObject(selectItem)
+	}
+
+	if selectItem.Type == parsers.SelectItemTypeConstant {
+		return r.selectItem_SelectItemTypeConstant(selectItem)
+	}
+
+	if selectItem.Type == parsers.SelectItemTypeSubQuery {
+		return r.selectItem_SelectItemTypeSubQuery(selectItem)
+	}
+
+	if selectItem.Type == parsers.SelectItemTypeFunctionCall {
+		if typedFunctionCall, ok := selectItem.Value.(parsers.FunctionCall); ok {
+			return r.selectItem_SelectItemTypeFunctionCall(typedFunctionCall)
+		}
+
+		logger.Error("parsers.SelectItem has incorrect Value type (expected parsers.FunctionCall)")
+		return nil
+	}
+
+	return r.selectItem_SelectItemTypeField(selectItem)
+}
+
+func (r rowContext) selectItem_SelectItemTypeArray(selectItem parsers.SelectItem) interface{} {
+	arrayValue := make([]interface{}, 0)
+	for _, subSelectItem := range selectItem.SelectItems {
+		arrayValue = append(arrayValue, r.resolveSelectItem(subSelectItem))
+	}
+	return arrayValue
+}
+
+func (r rowContext) selectItem_SelectItemTypeObject(selectItem parsers.SelectItem) interface{} {
+	objectValue := make(map[string]interface{})
+	for _, subSelectItem := range selectItem.SelectItems {
+		objectValue[subSelectItem.Alias] = r.resolveSelectItem(subSelectItem)
+	}
+	return objectValue
+}
+
+func (r rowContext) selectItem_SelectItemTypeConstant(selectItem parsers.SelectItem) interface{} {
+	var typedValue parsers.Constant
+	var ok bool
+	if typedValue, ok = selectItem.Value.(parsers.Constant); !ok {
+		// TODO: Handle error
+		logger.Error("parsers.Constant has incorrect Value type")
+	}
+
+	if typedValue.Type == parsers.ConstantTypeParameterConstant &&
+		r.parameters != nil {
+		if key, ok := typedValue.Value.(string); ok {
+			return r.parameters[key]
+		}
+	}
+
+	return typedValue.Value
+}
+
+func (r rowContext) selectItem_SelectItemTypeSubQuery(selectItem parsers.SelectItem) interface{} {
+	subQuery := selectItem.Value.(parsers.SelectStmt)
+	subQueryResult := ExecuteQuery(
+		subQuery,
+		[]RowType{r},
+	)
+
+	if subQuery.Exists {
+		return len(subQueryResult) > 0
+	}
+
+	return subQueryResult
+}
+
+func (r rowContext) selectItem_SelectItemTypeFunctionCall(functionCall parsers.FunctionCall) interface{} {
+	switch functionCall.Type {
+	case parsers.FunctionCallStringEquals:
+		return r.strings_StringEquals(functionCall.Arguments)
+	case parsers.FunctionCallContains:
+		return r.strings_Contains(functionCall.Arguments)
+	case parsers.FunctionCallEndsWith:
+		return r.strings_EndsWith(functionCall.Arguments)
+	case parsers.FunctionCallStartsWith:
+		return r.strings_StartsWith(functionCall.Arguments)
+	case parsers.FunctionCallConcat:
+		return r.strings_Concat(functionCall.Arguments)
+	case parsers.FunctionCallIndexOf:
+		return r.strings_IndexOf(functionCall.Arguments)
+	case parsers.FunctionCallToString:
+		return r.strings_ToString(functionCall.Arguments)
+	case parsers.FunctionCallUpper:
+		return r.strings_Upper(functionCall.Arguments)
+	case parsers.FunctionCallLower:
+		return r.strings_Lower(functionCall.Arguments)
+	case parsers.FunctionCallLeft:
+		return r.strings_Left(functionCall.Arguments)
+	case parsers.FunctionCallLength:
+		return r.strings_Length(functionCall.Arguments)
+	case parsers.FunctionCallLTrim:
+		return r.strings_LTrim(functionCall.Arguments)
+	case parsers.FunctionCallReplace:
+		return r.strings_Replace(functionCall.Arguments)
+	case parsers.FunctionCallReplicate:
+		return r.strings_Replicate(functionCall.Arguments)
+	case parsers.FunctionCallReverse:
+		return r.strings_Reverse(functionCall.Arguments)
+	case parsers.FunctionCallRight:
+		return r.strings_Right(functionCall.Arguments)
+	case parsers.FunctionCallRTrim:
+		return r.strings_RTrim(functionCall.Arguments)
+	case parsers.FunctionCallSubstring:
+		return r.strings_Substring(functionCall.Arguments)
+	case parsers.FunctionCallTrim:
+		return r.strings_Trim(functionCall.Arguments)
+
+	case parsers.FunctionCallIsDefined:
+		return r.typeChecking_IsDefined(functionCall.Arguments)
+	case parsers.FunctionCallIsArray:
+		return r.typeChecking_IsArray(functionCall.Arguments)
+	case parsers.FunctionCallIsBool:
+		return r.typeChecking_IsBool(functionCall.Arguments)
+	case parsers.FunctionCallIsFiniteNumber:
+		return r.typeChecking_IsFiniteNumber(functionCall.Arguments)
+	case parsers.FunctionCallIsInteger:
+		return r.typeChecking_IsInteger(functionCall.Arguments)
+	case parsers.FunctionCallIsNull:
+		return r.typeChecking_IsNull(functionCall.Arguments)
+	case parsers.FunctionCallIsNumber:
+		return r.typeChecking_IsNumber(functionCall.Arguments)
+	case parsers.FunctionCallIsObject:
+		return r.typeChecking_IsObject(functionCall.Arguments)
+	case parsers.FunctionCallIsPrimitive:
+		return r.typeChecking_IsPrimitive(functionCall.Arguments)
+	case parsers.FunctionCallIsString:
+		return r.typeChecking_IsString(functionCall.Arguments)
+
+	case parsers.FunctionCallArrayConcat:
+		return r.array_Concat(functionCall.Arguments)
+	case parsers.FunctionCallArrayLength:
+		return r.array_Length(functionCall.Arguments)
+	case parsers.FunctionCallArraySlice:
+		return r.array_Slice(functionCall.Arguments)
+	case parsers.FunctionCallSetIntersect:
+		return r.set_Intersect(functionCall.Arguments)
+	case parsers.FunctionCallSetUnion:
+		return r.set_Union(functionCall.Arguments)
+
+	case parsers.FunctionCallMathAbs:
+		return r.math_Abs(functionCall.Arguments)
+	case parsers.FunctionCallMathAcos:
+		return r.math_Acos(functionCall.Arguments)
+	case parsers.FunctionCallMathAsin:
+		return r.math_Asin(functionCall.Arguments)
+	case parsers.FunctionCallMathAtan:
+		return r.math_Atan(functionCall.Arguments)
+	case parsers.FunctionCallMathCeiling:
+		return r.math_Ceiling(functionCall.Arguments)
+	case parsers.FunctionCallMathCos:
+		return r.math_Cos(functionCall.Arguments)
+	case parsers.FunctionCallMathCot:
+		return r.math_Cot(functionCall.Arguments)
+	case parsers.FunctionCallMathDegrees:
+		return r.math_Degrees(functionCall.Arguments)
+	case parsers.FunctionCallMathExp:
+		return r.math_Exp(functionCall.Arguments)
+	case parsers.FunctionCallMathFloor:
+		return r.math_Floor(functionCall.Arguments)
+	case parsers.FunctionCallMathIntBitNot:
+		return r.math_IntBitNot(functionCall.Arguments)
+	case parsers.FunctionCallMathLog10:
+		return r.math_Log10(functionCall.Arguments)
+	case parsers.FunctionCallMathRadians:
+		return r.math_Radians(functionCall.Arguments)
+	case parsers.FunctionCallMathRound:
+		return r.math_Round(functionCall.Arguments)
+	case parsers.FunctionCallMathSign:
+		return r.math_Sign(functionCall.Arguments)
+	case parsers.FunctionCallMathSin:
+		return r.math_Sin(functionCall.Arguments)
+	case parsers.FunctionCallMathSqrt:
+		return r.math_Sqrt(functionCall.Arguments)
+	case parsers.FunctionCallMathSquare:
+		return r.math_Square(functionCall.Arguments)
+	case parsers.FunctionCallMathTan:
+		return r.math_Tan(functionCall.Arguments)
+	case parsers.FunctionCallMathTrunc:
+		return r.math_Trunc(functionCall.Arguments)
+	case parsers.FunctionCallMathAtn2:
+		return r.math_Atn2(functionCall.Arguments)
+	case parsers.FunctionCallMathIntAdd:
+		return r.math_IntAdd(functionCall.Arguments)
+	case parsers.FunctionCallMathIntBitAnd:
+		return r.math_IntBitAnd(functionCall.Arguments)
+	case parsers.FunctionCallMathIntBitLeftShift:
+		return r.math_IntBitLeftShift(functionCall.Arguments)
+	case parsers.FunctionCallMathIntBitOr:
+		return r.math_IntBitOr(functionCall.Arguments)
+	case parsers.FunctionCallMathIntBitRightShift:
+		return r.math_IntBitRightShift(functionCall.Arguments)
+	case parsers.FunctionCallMathIntBitXor:
+		return r.math_IntBitXor(functionCall.Arguments)
+	case parsers.FunctionCallMathIntDiv:
+		return r.math_IntDiv(functionCall.Arguments)
+	case parsers.FunctionCallMathIntMod:
+		return r.math_IntMod(functionCall.Arguments)
+	case parsers.FunctionCallMathIntMul:
+		return r.math_IntMul(functionCall.Arguments)
+	case parsers.FunctionCallMathIntSub:
+		return r.math_IntSub(functionCall.Arguments)
+	case parsers.FunctionCallMathPower:
+		return r.math_Power(functionCall.Arguments)
+	case parsers.FunctionCallMathLog:
+		return r.math_Log(functionCall.Arguments)
+	case parsers.FunctionCallMathNumberBin:
+		return r.math_NumberBin(functionCall.Arguments)
+	case parsers.FunctionCallMathPi:
+		return r.math_Pi()
+	case parsers.FunctionCallMathRand:
+		return r.math_Rand()
+
+	case parsers.FunctionCallAggregateAvg:
+		return r.aggregate_Avg(functionCall.Arguments)
+	case parsers.FunctionCallAggregateCount:
+		return r.aggregate_Count(functionCall.Arguments)
+	case parsers.FunctionCallAggregateMax:
+		return r.aggregate_Max(functionCall.Arguments)
+	case parsers.FunctionCallAggregateMin:
+		return r.aggregate_Min(functionCall.Arguments)
+	case parsers.FunctionCallAggregateSum:
+		return r.aggregate_Sum(functionCall.Arguments)
+
+	case parsers.FunctionCallIn:
+		return r.misc_In(functionCall.Arguments)
+	}
+
+	logger.Errorf("Unknown function call type: %v", functionCall.Type)
+	return nil
+}
+
+func (r rowContext) selectItem_SelectItemTypeField(selectItem parsers.SelectItem) interface{} {
+	value := r.tables[selectItem.Path[0]]
+
+	if len(selectItem.Path) > 1 {
+		for _, pathSegment := range selectItem.Path[1:] {
+
+			switch nestedValue := value.(type) {
+			case map[string]interface{}:
+				value = nestedValue[pathSegment]
+			case map[string]RowType:
+				value = nestedValue[pathSegment]
+			case []int, []string, []interface{}:
+				slice := reflect.ValueOf(nestedValue)
+				if arrayIndex, err := strconv.Atoi(pathSegment); err == nil && slice.Len() > arrayIndex {
+					value = slice.Index(arrayIndex).Interface()
+				} else {
+					return nil
+				}
+			default:
+				return nil
+			}
+		}
+	}
+
+	return value
+}
+
+func hasAggregateFunctions(selectItems []parsers.SelectItem) bool {
+	if selectItems == nil {
+		return false
+	}
+
+	for _, selectItem := range selectItems {
+		if selectItem.Type == parsers.SelectItemTypeFunctionCall {
+			if typedValue, ok := selectItem.Value.(parsers.FunctionCall); ok && slices.Contains[[]parsers.FunctionCallType](parsers.AggregateFunctions, typedValue.Type) {
+				return true
+			}
+		}
+
+		if hasAggregateFunctions(selectItem.SelectItems) {
+			return true
+		}
+	}
+
+	return false
 }

 func compareValues(val1, val2 interface{}) int {
@@ -431,8 +657,9 @@ func compareValues(val1, val2 interface{}) int {
 	}
 }

-func deduplicate(slice []RowType) []RowType {
-	var result []RowType
+func deduplicate[T RowType | interface{}](slice []T) []T {
+	var result []T
+	result = make([]T, 0)

 	for i := 0; i < len(slice); i++ {
 		unique := true
@@ -451,22 +678,12 @@ func deduplicate(slice []RowType) []RowType {
 	return result
 }

-func hasAggregateFunctions(selectItems []parsers.SelectItem) bool {
-	if selectItems == nil {
-		return false
+func copyMap[T RowType | []RowType](originalMap map[string]T) map[string]T {
+	targetMap := make(map[string]T)
+
+	for k, v := range originalMap {
+		targetMap[k] = v
 	}

-	for _, selectItem := range selectItems {
-		if selectItem.Type == parsers.SelectItemTypeFunctionCall {
-			if typedValue, ok := selectItem.Value.(parsers.FunctionCall); ok && slices.Contains[[]parsers.FunctionCallType](parsers.AggregateFunctions, typedValue.Type) {
-				return true
-			}
-		}
-
-		if hasAggregateFunctions(selectItem.SelectItems) {
-			return true
-		}
-	}
-
-	return false
+	return targetMap
 }
--- a/query_executors/memory_executor/misc_functions.go
+++ b/query_executors/memory_executor/misc_functions.go
@@ -4,11 +4,11 @@ import (
 	"github.com/pikami/cosmium/parsers"
 )

-func (c memoryExecutorContext) misc_In(arguments []interface{}, row RowType) bool {
-	value := c.getFieldValue(arguments[0].(parsers.SelectItem), row)
+func (r rowContext) misc_In(arguments []interface{}) bool {
+	value := r.resolveSelectItem(arguments[0].(parsers.SelectItem))

 	for i := 1; i < len(arguments); i++ {
-		compareValue := c.getFieldValue(arguments[i].(parsers.SelectItem), row)
+		compareValue := r.resolveSelectItem(arguments[i].(parsers.SelectItem))
 		if compareValues(value, compareValue) == 0 {
 			return true
 		}
--- a/query_executors/memory_executor/misc_test.go
+++ b/query_executors/memory_executor/misc_test.go
@@ -14,7 +14,7 @@ func testQueryExecute(
 	data []memoryexecutor.RowType,
 	expectedData []memoryexecutor.RowType,
 ) {
-	result := memoryexecutor.Execute(query, data)
+	result := memoryexecutor.ExecuteQuery(query, data)

 	if !reflect.DeepEqual(result, expectedData) {
 		t.Errorf("execution result does not match expected data.\nExpected: %+v\nGot: %+v", expectedData, result)
@@ -25,8 +25,20 @@ func Test_Execute(t *testing.T) {
 	mockData := []memoryexecutor.RowType{
 		map[string]interface{}{"id": "12345", "pk": 123, "_self": "self1", "_rid": "rid1", "_ts": 123456, "isCool": false},
 		map[string]interface{}{"id": "67890", "pk": 456, "_self": "self2", "_rid": "rid2", "_ts": 789012, "isCool": true},
-		map[string]interface{}{"id": "456", "pk": 456, "_self": "self2", "_rid": "rid2", "_ts": 789012, "isCool": true},
-		map[string]interface{}{"id": "123", "pk": 456, "_self": "self2", "_rid": "rid2", "_ts": 789012, "isCool": true},
+		map[string]interface{}{
+			"id": "456", "pk": 456, "_self": "self2", "_rid": "rid2", "_ts": 789012, "isCool": true,
+			"tags": []map[string]interface{}{
+				{"name": "tag-a"},
+				{"name": "tag-b"},
+			},
+		},
+		map[string]interface{}{
+			"id": "123", "pk": 456, "_self": "self2", "_rid": "rid2", "_ts": 789012, "isCool": true,
+			"tags": []map[string]interface{}{
+				{"name": "tag-b"},
+				{"name": "tag-c"},
+			},
+		},
 	}

 	t.Run("Should execute SELECT with ORDER BY", func(t *testing.T) {
@@ -124,4 +136,31 @@ func Test_Execute(t *testing.T) {
 			},
 		)
 	})
+
+	t.Run("Should execute IN selector", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Path: []string{"c", "name"},
+						Type: parsers.SelectItemTypeField,
+					},
+				},
+				Table: parsers.Table{
+					Value: "c",
+					SelectItem: parsers.SelectItem{
+						Path: []string{"c", "tags"},
+					},
+				},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"name": "tag-a"},
+				map[string]interface{}{"name": "tag-b"},
+				map[string]interface{}{"name": "tag-b"},
+				map[string]interface{}{"name": "tag-c"},
+			},
+		)
+	})
 }
--- a/query_executors/memory_executor/string_functions.go
+++ b/query_executors/memory_executor/string_functions.go
@@ -8,10 +8,10 @@ import (
 	"github.com/pikami/cosmium/parsers"
 )

-func (c memoryExecutorContext) strings_StringEquals(arguments []interface{}, row RowType) bool {
-	str1 := c.parseString(arguments[0], row)
-	str2 := c.parseString(arguments[1], row)
-	ignoreCase := c.getBoolFlag(arguments, row)
+func (r rowContext) strings_StringEquals(arguments []interface{}) bool {
+	str1 := r.parseString(arguments[0])
+	str2 := r.parseString(arguments[1])
+	ignoreCase := r.getBoolFlag(arguments)

 	if ignoreCase {
 		return strings.EqualFold(str1, str2)
@@ -20,10 +20,10 @@ func (c memoryExecutorContext) strings_StringEquals(arguments []interface{}, row
 	return str1 == str2
 }

-func (c memoryExecutorContext) strings_Contains(arguments []interface{}, row RowType) bool {
-	str1 := c.parseString(arguments[0], row)
-	str2 := c.parseString(arguments[1], row)
-	ignoreCase := c.getBoolFlag(arguments, row)
+func (r rowContext) strings_Contains(arguments []interface{}) bool {
+	str1 := r.parseString(arguments[0])
+	str2 := r.parseString(arguments[1])
+	ignoreCase := r.getBoolFlag(arguments)

 	if ignoreCase {
 		str1 = strings.ToLower(str1)
@@ -33,10 +33,10 @@ func (c memoryExecutorContext) strings_Contains(arguments []interface{}, row Row
 	return strings.Contains(str1, str2)
 }

-func (c memoryExecutorContext) strings_EndsWith(arguments []interface{}, row RowType) bool {
-	str1 := c.parseString(arguments[0], row)
-	str2 := c.parseString(arguments[1], row)
-	ignoreCase := c.getBoolFlag(arguments, row)
+func (r rowContext) strings_EndsWith(arguments []interface{}) bool {
+	str1 := r.parseString(arguments[0])
+	str2 := r.parseString(arguments[1])
+	ignoreCase := r.getBoolFlag(arguments)

 	if ignoreCase {
 		str1 = strings.ToLower(str1)
@@ -46,10 +46,10 @@ func (c memoryExecutorContext) strings_EndsWith(arguments []interface{}, row Row
 	return strings.HasSuffix(str1, str2)
 }

-func (c memoryExecutorContext) strings_StartsWith(arguments []interface{}, row RowType) bool {
-	str1 := c.parseString(arguments[0], row)
-	str2 := c.parseString(arguments[1], row)
-	ignoreCase := c.getBoolFlag(arguments, row)
+func (r rowContext) strings_StartsWith(arguments []interface{}) bool {
+	str1 := r.parseString(arguments[0])
+	str2 := r.parseString(arguments[1])
+	ignoreCase := r.getBoolFlag(arguments)

 	if ignoreCase {
 		str1 = strings.ToLower(str1)
@@ -59,12 +59,12 @@ func (c memoryExecutorContext) strings_StartsWith(arguments []interface{}, row R
 	return strings.HasPrefix(str1, str2)
 }

-func (c memoryExecutorContext) strings_Concat(arguments []interface{}, row RowType) string {
+func (r rowContext) strings_Concat(arguments []interface{}) string {
 	result := ""

 	for _, arg := range arguments {
 		if selectItem, ok := arg.(parsers.SelectItem); ok {
-			value := c.getFieldValue(selectItem, row)
+			value := r.resolveSelectItem(selectItem)
 			result += convertToString(value)
 		}
 	}
@@ -72,13 +72,13 @@ func (c memoryExecutorContext) strings_Concat(arguments []interface{}, row RowTy
 	return result
 }

-func (c memoryExecutorContext) strings_IndexOf(arguments []interface{}, row RowType) int {
-	str1 := c.parseString(arguments[0], row)
-	str2 := c.parseString(arguments[1], row)
+func (r rowContext) strings_IndexOf(arguments []interface{}) int {
+	str1 := r.parseString(arguments[0])
+	str2 := r.parseString(arguments[1])

 	start := 0
 	if len(arguments) > 2 && arguments[2] != nil {
-		if startPos, ok := c.getFieldValue(arguments[2].(parsers.SelectItem), row).(int); ok {
+		if startPos, ok := r.resolveSelectItem(arguments[2].(parsers.SelectItem)).(int); ok {
 			start = startPos
 		}
 	}
@@ -97,26 +97,26 @@ func (c memoryExecutorContext) strings_IndexOf(arguments []interface{}, row RowT
 	}
 }

-func (c memoryExecutorContext) strings_ToString(arguments []interface{}, row RowType) string {
-	value := c.getFieldValue(arguments[0].(parsers.SelectItem), row)
+func (r rowContext) strings_ToString(arguments []interface{}) string {
+	value := r.resolveSelectItem(arguments[0].(parsers.SelectItem))
 	return convertToString(value)
 }

-func (c memoryExecutorContext) strings_Upper(arguments []interface{}, row RowType) string {
-	value := c.getFieldValue(arguments[0].(parsers.SelectItem), row)
+func (r rowContext) strings_Upper(arguments []interface{}) string {
+	value := r.resolveSelectItem(arguments[0].(parsers.SelectItem))
 	return strings.ToUpper(convertToString(value))
 }

-func (c memoryExecutorContext) strings_Lower(arguments []interface{}, row RowType) string {
-	value := c.getFieldValue(arguments[0].(parsers.SelectItem), row)
+func (r rowContext) strings_Lower(arguments []interface{}) string {
+	value := r.resolveSelectItem(arguments[0].(parsers.SelectItem))
 	return strings.ToLower(convertToString(value))
 }

-func (c memoryExecutorContext) strings_Left(arguments []interface{}, row RowType) string {
+func (r rowContext) strings_Left(arguments []interface{}) string {
 	var ok bool
 	var length int
-	str := c.parseString(arguments[0], row)
-	lengthEx := c.getFieldValue(arguments[1].(parsers.SelectItem), row)
+	str := r.parseString(arguments[0])
+	lengthEx := r.resolveSelectItem(arguments[1].(parsers.SelectItem))

 	if length, ok = lengthEx.(int); !ok {
 		logger.Error("strings_Left - got parameters of wrong type")
@@ -134,28 +134,28 @@ func (c memoryExecutorContext) strings_Left(arguments []interface{}, row RowType
 	return str[:length]
 }

-func (c memoryExecutorContext) strings_Length(arguments []interface{}, row RowType) int {
-	str := c.parseString(arguments[0], row)
+func (r rowContext) strings_Length(arguments []interface{}) int {
+	str := r.parseString(arguments[0])
 	return len(str)
 }

-func (c memoryExecutorContext) strings_LTrim(arguments []interface{}, row RowType) string {
-	str := c.parseString(arguments[0], row)
+func (r rowContext) strings_LTrim(arguments []interface{}) string {
+	str := r.parseString(arguments[0])
 	return strings.TrimLeft(str, " ")
 }

-func (c memoryExecutorContext) strings_Replace(arguments []interface{}, row RowType) string {
-	str := c.parseString(arguments[0], row)
-	oldStr := c.parseString(arguments[1], row)
-	newStr := c.parseString(arguments[2], row)
+func (r rowContext) strings_Replace(arguments []interface{}) string {
+	str := r.parseString(arguments[0])
+	oldStr := r.parseString(arguments[1])
+	newStr := r.parseString(arguments[2])
 	return strings.Replace(str, oldStr, newStr, -1)
 }

-func (c memoryExecutorContext) strings_Replicate(arguments []interface{}, row RowType) string {
+func (r rowContext) strings_Replicate(arguments []interface{}) string {
 	var ok bool
 	var times int
-	str := c.parseString(arguments[0], row)
-	timesEx := c.getFieldValue(arguments[1].(parsers.SelectItem), row)
+	str := r.parseString(arguments[0])
+	timesEx := r.resolveSelectItem(arguments[1].(parsers.SelectItem))

 	if times, ok = timesEx.(int); !ok {
 		logger.Error("strings_Replicate - got parameters of wrong type")
@@ -173,8 +173,8 @@ func (c memoryExecutorContext) strings_Replicate(arguments []interface{}, row Ro
 	return strings.Repeat(str, times)
 }

-func (c memoryExecutorContext) strings_Reverse(arguments []interface{}, row RowType) string {
-	str := c.parseString(arguments[0], row)
+func (r rowContext) strings_Reverse(arguments []interface{}) string {
+	str := r.parseString(arguments[0])
 	runes := []rune(str)

 	for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
@@ -184,11 +184,11 @@ func (c memoryExecutorContext) strings_Reverse(arguments []interface{}, row RowT
 	return string(runes)
 }

-func (c memoryExecutorContext) strings_Right(arguments []interface{}, row RowType) string {
+func (r rowContext) strings_Right(arguments []interface{}) string {
 	var ok bool
 	var length int
-	str := c.parseString(arguments[0], row)
-	lengthEx := c.getFieldValue(arguments[1].(parsers.SelectItem), row)
+	str := r.parseString(arguments[0])
+	lengthEx := r.resolveSelectItem(arguments[1].(parsers.SelectItem))

 	if length, ok = lengthEx.(int); !ok {
 		logger.Error("strings_Right - got parameters of wrong type")
@@ -206,18 +206,18 @@ func (c memoryExecutorContext) strings_Right(arguments []interface{}, row RowTyp
 	return str[len(str)-length:]
 }

-func (c memoryExecutorContext) strings_RTrim(arguments []interface{}, row RowType) string {
-	str := c.parseString(arguments[0], row)
+func (r rowContext) strings_RTrim(arguments []interface{}) string {
+	str := r.parseString(arguments[0])
 	return strings.TrimRight(str, " ")
 }

-func (c memoryExecutorContext) strings_Substring(arguments []interface{}, row RowType) string {
+func (r rowContext) strings_Substring(arguments []interface{}) string {
 	var ok bool
 	var startPos int
 	var length int
-	str := c.parseString(arguments[0], row)
-	startPosEx := c.getFieldValue(arguments[1].(parsers.SelectItem), row)
-	lengthEx := c.getFieldValue(arguments[2].(parsers.SelectItem), row)
+	str := r.parseString(arguments[0])
+	startPosEx := r.resolveSelectItem(arguments[1].(parsers.SelectItem))
+	lengthEx := r.resolveSelectItem(arguments[2].(parsers.SelectItem))

 	if startPos, ok = startPosEx.(int); !ok {
 		logger.Error("strings_Substring - got start parameters of wrong type")
@@ -240,16 +240,16 @@ func (c memoryExecutorContext) strings_Substring(arguments []interface{}, row Ro
 	return str[startPos:endPos]
 }

-func (c memoryExecutorContext) strings_Trim(arguments []interface{}, row RowType) string {
-	str := c.parseString(arguments[0], row)
+func (r rowContext) strings_Trim(arguments []interface{}) string {
+	str := r.parseString(arguments[0])
 	return strings.TrimSpace(str)
 }

-func (c memoryExecutorContext) getBoolFlag(arguments []interface{}, row RowType) bool {
+func (r rowContext) getBoolFlag(arguments []interface{}) bool {
 	ignoreCase := false
 	if len(arguments) > 2 && arguments[2] != nil {
 		ignoreCaseItem := arguments[2].(parsers.SelectItem)
-		if value, ok := c.getFieldValue(ignoreCaseItem, row).(bool); ok {
+		if value, ok := r.resolveSelectItem(ignoreCaseItem).(bool); ok {
 			ignoreCase = value
 		}
 	}
@@ -257,9 +257,9 @@ func (c memoryExecutorContext) getBoolFlag(arguments []interface{}, row RowType)
 	return ignoreCase
 }

-func (c memoryExecutorContext) parseString(argument interface{}, row RowType) string {
+func (r rowContext) parseString(argument interface{}) string {
 	exItem := argument.(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)
 	if str1, ok := ex.(string); ok {
 		return str1
 	}
--- a/query_executors/memory_executor/subquery_test.go
+++ b/query_executors/memory_executor/subquery_test.go
@@ -0,0 +1,155 @@
+package memoryexecutor_test
+
+import (
+	"testing"
+
+	"github.com/pikami/cosmium/parsers"
+	memoryexecutor "github.com/pikami/cosmium/query_executors/memory_executor"
+)
+
+func Test_Execute_SubQuery(t *testing.T) {
+	mockData := []memoryexecutor.RowType{
+		map[string]interface{}{"id": "123", "info": map[string]interface{}{"name": "row-1"}},
+		map[string]interface{}{
+			"id":   "456",
+			"info": map[string]interface{}{"name": "row-2"},
+			"tags": []map[string]interface{}{
+				{"name": "tag-a"},
+				{"name": "tag-b"},
+			},
+		},
+		map[string]interface{}{
+			"id":   "789",
+			"info": map[string]interface{}{"name": "row-3"},
+			"tags": []map[string]interface{}{
+				{"name": "tag-b"},
+				{"name": "tag-c"},
+			},
+		},
+	}
+
+	t.Run("Should execute FROM subquery", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "name"}},
+				},
+				Table: parsers.Table{
+					Value: "c",
+					SelectItem: parsers.SelectItem{
+						Alias: "c",
+						Type:  parsers.SelectItemTypeSubQuery,
+						Value: parsers.SelectStmt{
+							Table: parsers.Table{Value: "cc"},
+							SelectItems: []parsers.SelectItem{
+								{Path: []string{"cc", "info"}, IsTopLevel: true},
+							},
+						},
+					},
+				},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"name": "row-1"},
+				map[string]interface{}{"name": "row-2"},
+				map[string]interface{}{"name": "row-3"},
+			},
+		)
+	})
+
+	t.Run("Should execute JOIN subquery", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{Path: []string{"cc", "name"}},
+				},
+				Table: parsers.Table{
+					Value: "c",
+				},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{
+							Value: "cc",
+						},
+						SelectItem: parsers.SelectItem{
+							Alias: "cc",
+							Type:  parsers.SelectItemTypeSubQuery,
+							Value: parsers.SelectStmt{
+								SelectItems: []parsers.SelectItem{
+									{Path: []string{"tag", "name"}},
+								},
+								Table: parsers.Table{
+									Value: "tag",
+									SelectItem: parsers.SelectItem{
+										Path: []string{"c", "tags"},
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "456", "name": "tag-a"},
+				map[string]interface{}{"id": "456", "name": "tag-b"},
+				map[string]interface{}{"id": "789", "name": "tag-b"},
+				map[string]interface{}{"id": "789", "name": "tag-c"},
+			},
+		)
+	})
+
+	t.Run("Should execute JOIN EXISTS subquery", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+				},
+				Table: parsers.Table{
+					Value: "c",
+				},
+				JoinItems: []parsers.JoinItem{
+					{
+						Table: parsers.Table{Value: "hasTags"},
+						SelectItem: parsers.SelectItem{
+							Alias: "hasTags",
+							Type:  parsers.SelectItemTypeSubQuery,
+							Value: parsers.SelectStmt{
+								SelectItems: []parsers.SelectItem{
+									{
+										IsTopLevel: true,
+										Type:       parsers.SelectItemTypeSubQuery,
+										Value: parsers.SelectStmt{
+											SelectItems: []parsers.SelectItem{
+												{Path: []string{"tag", "name"}},
+											},
+											Table: parsers.Table{
+												Value: "tag",
+												SelectItem: parsers.SelectItem{
+													Path: []string{"c", "tags"},
+												},
+											},
+											Exists: true,
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+				Filters: parsers.SelectItem{
+					Path: []string{"hasTags"},
+				},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "456"},
+				map[string]interface{}{"id": "789"},
+			},
+		)
+	})
+}
--- a/query_executors/memory_executor/type_checking_functions.go
+++ b/query_executors/memory_executor/type_checking_functions.go
@@ -6,32 +6,32 @@ import (
 	"github.com/pikami/cosmium/parsers"
 )

-func (c memoryExecutorContext) typeChecking_IsDefined(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsDefined(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	return ex != nil
 }

-func (c memoryExecutorContext) typeChecking_IsArray(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsArray(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	_, isArray := ex.([]interface{})
 	return isArray
 }

-func (c memoryExecutorContext) typeChecking_IsBool(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsBool(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	_, isBool := ex.(bool)
 	return isBool
 }

-func (c memoryExecutorContext) typeChecking_IsFiniteNumber(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsFiniteNumber(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	switch num := ex.(type) {
 	case int:
@@ -43,41 +43,41 @@ func (c memoryExecutorContext) typeChecking_IsFiniteNumber(arguments []interface
 	}
 }

-func (c memoryExecutorContext) typeChecking_IsInteger(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsInteger(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	_, isInt := ex.(int)
 	return isInt
 }

-func (c memoryExecutorContext) typeChecking_IsNull(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsNull(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	return ex == nil
 }

-func (c memoryExecutorContext) typeChecking_IsNumber(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsNumber(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	_, isFloat := ex.(float64)
 	_, isInt := ex.(int)
 	return isFloat || isInt
 }

-func (c memoryExecutorContext) typeChecking_IsObject(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsObject(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	_, isObject := ex.(map[string]interface{})
 	return isObject
 }

-func (c memoryExecutorContext) typeChecking_IsPrimitive(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsPrimitive(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	switch ex.(type) {
 	case bool, string, float64, int, nil:
@@ -87,9 +87,9 @@ func (c memoryExecutorContext) typeChecking_IsPrimitive(arguments []interface{},
 	}
 }

-func (c memoryExecutorContext) typeChecking_IsString(arguments []interface{}, row RowType) bool {
+func (r rowContext) typeChecking_IsString(arguments []interface{}) bool {
 	exItem := arguments[0].(parsers.SelectItem)
-	ex := c.getFieldValue(exItem, row)
+	ex := r.resolveSelectItem(exItem)

 	_, isStr := ex.(string)
 	return isStr
Author	SHA1	Message	Date
Pijus Kamandulis	a4659d90a9	Enable multi-platform docker builds	2024-12-08 18:55:20 +02:00
Pijus Kamandulis	503e6bb8ad	Update compatibility matrix	2024-12-08 18:17:37 +02:00
Pijus Kamandulis	e5ddc143f0	Improved concurrency handling	2024-12-08 17:54:58 +02:00
Pijus Kamandulis	66ea859f34	Add support for subqueries	2024-12-07 22:29:26 +02:00
Pijus Kamandulis	3584f9b5ce	Enable ARM builds for Windows and Linux	2024-11-16 20:09:24 +02:00
Pijus Kamandulis	c7d01b4593	Fix cosmos explorer incorrect redirect	2024-11-14 18:42:17 +02:00
erikzeneco	2834f3f641	check isUpsert header in POST document request (#5 ) * check isUpsert header in POST document request * Verify response code on "CreateItem that already exists" test --------- Co-authored-by: Pijus Kamandulis <pikami@users.noreply.github.com>	2024-11-01 21:11:59 +02:00
Pijus Kamandulis	a6b5d32ff7	Merge pull request #4 from pikami/erikzeneco/serve_request_paths_with_trailing_slashes Erikzeneco/serve request paths with trailing slashes	2024-10-29 18:06:56 +02:00
Pijus Kamandulis	0e98e3481a	Strip trailing slash using middleware	2024-10-28 20:20:52 +02:00
Erik Zentveld	827046f634	re-add removed blank lines	2024-10-28 16:18:49 +01:00
Erik Zentveld	475d586dc5	Merge branch 'master' into serve_request_paths_with_trailing_slashes	2024-10-28 14:37:01 +01:00
Erik Zentveld	9abef691d6	serve request paths with trailing slashes, as sent by python client	2024-10-28 13:29:26 +01:00
Pijus Kamandulis	62dcbc1f2b	Merge pull request #1 from erikzeneco/master Update README.md	2024-10-16 18:34:14 +03:00
erikzeneco	2f42651fb7	Update README.md Use envPrefix for parameter passed in as environment variable with docker.	2024-10-16 16:24:53 +02:00
Pijus Kamandulis	20af73ee9c	Partial JOIN implementation	2024-07-17 21:56:17 +03:00
Pijus Kamandulis	3bdff9b643	Implement Mathematical Functions	2024-06-19 00:44:46 +03:00
Pijus Kamandulis	b808e97c72	Fix array access	2024-06-03 19:00:52 +03:00
Pijus Kamandulis	e623a563f4	Update dependencies	2024-06-01 19:55:06 +03:00
Pijus Kamandulis	2cd61aa620	Implement document PATCH operation	2024-06-01 19:52:07 +03:00
Pijus Kamandulis	0cec7816c1	Fixed authentication key generation for partition key ranges Fixed collection rid generation Improved compatibility with SDKs	2024-06-01 02:32:52 +03:00