Implement IS_ARRAY, IS_BOOL, IS_FINITE_NUMBER, IS_INTEGER, IS_NULL, IS_NUMBER, IS_OBJECT, IS_PRIMITIVE, IS_STRING functions

parsers/models.go

@@ -81,14 +81,12 @@ type FunctionCallType string
 
 const (
 	FunctionCallStringEquals FunctionCallType = "StringEquals"
-	FunctionCallIsDefined    FunctionCallType = "IsDefined"
 	FunctionCallConcat       FunctionCallType = "Concat"
 	FunctionCallContains     FunctionCallType = "Contains"
 	FunctionCallEndsWith     FunctionCallType = "EndsWith"
 	FunctionCallStartsWith   FunctionCallType = "StartsWith"
 	FunctionCallIndexOf      FunctionCallType = "IndexOf"
 	FunctionCallToString     FunctionCallType = "ToString"
-	FunctionCallIn           FunctionCallType = "In"
 	FunctionCallUpper        FunctionCallType = "Upper"
 	FunctionCallLower        FunctionCallType = "Lower"
 	FunctionCallLeft         FunctionCallType = "Left"
@@ -101,6 +99,19 @@ const (
 	FunctionCallRTrim        FunctionCallType = "RTrim"
 	FunctionCallSubstring    FunctionCallType = "Substring"
 	FunctionCallTrim         FunctionCallType = "Trim"
+
+	FunctionCallIsDefined      FunctionCallType = "IsDefined"
+	FunctionCallIsArray        FunctionCallType = "IsArray"
+	FunctionCallIsBool         FunctionCallType = "IsBool"
+	FunctionCallIsFiniteNumber FunctionCallType = "IsFiniteNumber"
+	FunctionCallIsInteger      FunctionCallType = "IsInteger"
+	FunctionCallIsNull         FunctionCallType = "IsNull"
+	FunctionCallIsNumber       FunctionCallType = "IsNumber"
+	FunctionCallIsObject       FunctionCallType = "IsObject"
+	FunctionCallIsPrimitive    FunctionCallType = "IsPrimitive"
+	FunctionCallIsString       FunctionCallType = "IsString"
+
+	FunctionCallIn FunctionCallType = "In"
 )
 
 type FunctionCall struct {

parsers/nosql/nosql.peg

@@ -310,7 +310,20 @@ BooleanLiteral <- ("true"i / "false"i) {
     return parsers.Constant{Type: parsers.ConstantTypeBoolean, Value: boolValue}, nil
 }
 
-FunctionCall <- StringFunctions / IsDefined / InFunction
+FunctionCall <- StringFunctions
+    / TypeCheckingFunctions
+    / InFunction
+
+TypeCheckingFunctions <- IsDefined
+    / IsArray
+    / IsBool
+    / IsFiniteNumber
+    / IsInteger
+    / IsNull
+    / IsNumber
+    / IsObject
+    / IsPrimitive
+    / IsString
 
 StringFunctions <- StringEqualsExpression
     / ToStringExpression
@@ -413,7 +426,43 @@ ThreeArgumentStringFunction <- ("CONTAINS"i / "ENDSWITH"i / "STARTSWITH"i / "IND
 }
 
 IsDefined <- "IS_DEFINED"i ws "(" ws ex:SelectItem ws ")" {
-    return parsers.FunctionCall{Type: parsers.FunctionCallIsDefined, Arguments: []interface{}{ex}}, nil
+    return createFunctionCall(parsers.FunctionCallIsDefined, []interface{}{ex})
+}
+
+IsArray <- "IS_ARRAY"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsArray, []interface{}{ex})
+}
+
+IsBool <- "IS_BOOL"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsBool, []interface{}{ex})
+}
+
+IsFiniteNumber <- "IS_FINITE_NUMBER"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsFiniteNumber, []interface{}{ex})
+}
+
+IsInteger <- "IS_INTEGER"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsInteger, []interface{}{ex})
+}
+
+IsNull <- "IS_NULL"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsNull, []interface{}{ex})
+}
+
+IsNumber <- "IS_NUMBER"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsNumber, []interface{}{ex})
+}
+
+IsObject <- "IS_OBJECT"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsObject, []interface{}{ex})
+}
+
+IsPrimitive <- "IS_PRIMITIVE"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsPrimitive, []interface{}{ex})
+}
+
+IsString <- "IS_STRING"i ws "(" ws ex:SelectItem ws ")" {
+    return createFunctionCall(parsers.FunctionCallIsString, []interface{}{ex})
 }
 
 InFunction <- ex1:SelectProperty ws "IN"i ws "(" ws ex2:SelectItem others:(ws "," ws ex:SelectItem { return ex, nil })* ws ")" {

parsers/nosql/nosql_type_checking_functions_test.go

@@ -43,4 +43,328 @@ func Test_Execute_TypeCheckingFunctions(t *testing.T) {
 			},
 		)
 	})
+
+	t.Run("Should parse function IS_ARRAY", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_ARRAY(c.arr) FROM c WHERE IS_ARRAY(c.arr)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsArray,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "arr"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsArray,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "arr"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_BOOL", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_BOOL(c.flag) FROM c WHERE IS_BOOL(c.flag)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsBool,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "flag"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsBool,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "flag"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_FINITE_NUMBER", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_FINITE_NUMBER(c.value) FROM c WHERE IS_FINITE_NUMBER(c.amount)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsFiniteNumber,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "value"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsFiniteNumber,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "amount"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_INTEGER", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_INTEGER(c.number) FROM c WHERE IS_INTEGER(c.number)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsInteger,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "number"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsInteger,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "number"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_NULL", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_NULL(c.value) FROM c WHERE IS_NULL(c.value)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsNull,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "value"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsNull,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "value"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_NUMBER", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_NUMBER(c.value) FROM c WHERE IS_NUMBER(c.value)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsNumber,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "value"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsNumber,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "value"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_OBJECT", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_OBJECT(c.obj) FROM c WHERE IS_OBJECT(c.obj)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsObject,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsObject,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "obj"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_PRIMITIVE", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_PRIMITIVE(c.value) FROM c WHERE IS_PRIMITIVE(c.value)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsPrimitive,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "value"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsPrimitive,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "value"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
+
+	t.Run("Should parse function IS_STRING", func(t *testing.T) {
+		testQueryParse(
+			t,
+			`SELECT IS_STRING(c.value) FROM c WHERE IS_STRING(c.value)`,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{
+						Type: parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsString,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "value"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+				Filters: parsers.SelectItem{
+					Type: parsers.SelectItemTypeFunctionCall,
+					Value: parsers.FunctionCall{
+						Type: parsers.FunctionCallIsString,
+						Arguments: []interface{}{
+							parsers.SelectItem{
+								Path: []string{"c", "value"},
+								Type: parsers.SelectItemTypeField,
+							},
+						},
+					},
+				},
+			},
+		)
+	})
 }

query_executors/memory_executor/memory_executor.go

@@ -214,8 +214,28 @@ func getFieldValue(field parsers.SelectItem, queryParameters map[string]interfac
 			return strings_Substring(typedValue.Arguments, queryParameters, row)
 		case parsers.FunctionCallTrim:
 			return strings_Trim(typedValue.Arguments, queryParameters, row)
+
 		case parsers.FunctionCallIsDefined:
 			return typeChecking_IsDefined(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsArray:
+			return typeChecking_IsArray(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsBool:
+			return typeChecking_IsBool(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsFiniteNumber:
+			return typeChecking_IsFiniteNumber(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsInteger:
+			return typeChecking_IsInteger(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsNull:
+			return typeChecking_IsNull(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsNumber:
+			return typeChecking_IsNumber(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsObject:
+			return typeChecking_IsObject(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsPrimitive:
+			return typeChecking_IsPrimitive(typedValue.Arguments, queryParameters, row)
+		case parsers.FunctionCallIsString:
+			return typeChecking_IsString(typedValue.Arguments, queryParameters, row)
+
 		case parsers.FunctionCallIn:
 			return misc_In(typedValue.Arguments, queryParameters, row)
 		}

query_executors/memory_executor/memory_executor_type_checking_functions.go

@@ -1,6 +1,8 @@
 package memoryexecutor
 
 import (
+	"math"
+
 	"github.com/pikami/cosmium/parsers"
 )
 
@@ -10,3 +12,85 @@ func typeChecking_IsDefined(arguments []interface{}, queryParameters map[string]
 
 	return ex != nil
 }
+
+func typeChecking_IsArray(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	_, isArray := ex.([]interface{})
+	return isArray
+}
+
+func typeChecking_IsBool(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	_, isBool := ex.(bool)
+	return isBool
+}
+
+func typeChecking_IsFiniteNumber(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	switch num := ex.(type) {
+	case int:
+		return true
+	case float64:
+		return !math.IsInf(num, 0) && !math.IsNaN(num)
+	default:
+		return false
+	}
+}
+
+func typeChecking_IsInteger(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	_, isInt := ex.(int)
+	return isInt
+}
+
+func typeChecking_IsNull(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	return ex == nil
+}
+
+func typeChecking_IsNumber(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	_, isFloat := ex.(float64)
+	_, isInt := ex.(int)
+	return isFloat || isInt
+}
+
+func typeChecking_IsObject(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	_, isObject := ex.(map[string]interface{})
+	return isObject
+}
+
+func typeChecking_IsPrimitive(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	switch ex.(type) {
+	case bool, string, float64, int, nil:
+		return true
+	default:
+		return false
+	}
+}
+
+func typeChecking_IsString(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	exItem := arguments[0].(parsers.SelectItem)
+	ex := getFieldValue(exItem, queryParameters, row)
+
+	_, isStr := ex.(string)
+	return isStr
+}

query_executors/memory_executor/memory_executor_type_checking_functions_test.go

@@ -1,6 +1,7 @@
 package memoryexecutor_test
 
 import (
+	"math"
 	"testing"
 
 	"github.com/pikami/cosmium/parsers"
@@ -9,9 +10,14 @@ import (
 
 func Test_Execute_TypeCheckingFunctions(t *testing.T) {
 	mockData := []memoryexecutor.RowType{
-		map[string]interface{}{"id": "123", "pk": "aaa"},
+		map[string]interface{}{"id": "1", "obj": nil},
-		map[string]interface{}{"id": "456"},
+		map[string]interface{}{"id": "2", "obj": "str"},
-		map[string]interface{}{"id": "789", "pk": ""},
+		map[string]interface{}{"id": "3", "obj": 1},
+		map[string]interface{}{"id": "4", "obj": 1.2},
+		map[string]interface{}{"id": "5", "obj": true},
+		map[string]interface{}{"id": "6", "obj": []interface{}{1, 2, 3}},
+		map[string]interface{}{"id": "7", "obj": map[string]interface{}{"a": "a"}},
+		map[string]interface{}{"id": "8", "obj": math.Inf(1)},
 	}
 
 	t.Run("Should execute function IS_DEFINED(path)", func(t *testing.T) {
@@ -21,13 +27,13 @@ func Test_Execute_TypeCheckingFunctions(t *testing.T) {
 				SelectItems: []parsers.SelectItem{
 					{Path: []string{"c", "id"}},
 					{
-						Alias: "defined",
+						Alias: "IsDefined",
 						Type:  parsers.SelectItemTypeFunctionCall,
 						Value: parsers.FunctionCall{
 							Type: parsers.FunctionCallIsDefined,
 							Arguments: []interface{}{
 								parsers.SelectItem{
-									Path: []string{"c", "pk"},
+									Path: []string{"c", "obj"},
 									Type: parsers.SelectItemTypeField,
 								},
 							},
@@ -38,9 +44,338 @@ func Test_Execute_TypeCheckingFunctions(t *testing.T) {
 			},
 			mockData,
 			[]memoryexecutor.RowType{
-				map[string]interface{}{"id": "123", "defined": true},
+				map[string]interface{}{"id": "1", "IsDefined": false},
-				map[string]interface{}{"id": "456", "defined": false},
+				map[string]interface{}{"id": "2", "IsDefined": true},
-				map[string]interface{}{"id": "789", "defined": true},
+				map[string]interface{}{"id": "3", "IsDefined": true},
+				map[string]interface{}{"id": "4", "IsDefined": true},
+				map[string]interface{}{"id": "5", "IsDefined": true},
+				map[string]interface{}{"id": "6", "IsDefined": true},
+				map[string]interface{}{"id": "7", "IsDefined": true},
+				map[string]interface{}{"id": "8", "IsDefined": true},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_ARRAY(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsArray",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsArray,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsArray": false},
+				map[string]interface{}{"id": "2", "IsArray": false},
+				map[string]interface{}{"id": "3", "IsArray": false},
+				map[string]interface{}{"id": "4", "IsArray": false},
+				map[string]interface{}{"id": "5", "IsArray": false},
+				map[string]interface{}{"id": "6", "IsArray": true},
+				map[string]interface{}{"id": "7", "IsArray": false},
+				map[string]interface{}{"id": "8", "IsArray": false},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_BOOL(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsBool",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsBool,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsBool": false},
+				map[string]interface{}{"id": "2", "IsBool": false},
+				map[string]interface{}{"id": "3", "IsBool": false},
+				map[string]interface{}{"id": "4", "IsBool": false},
+				map[string]interface{}{"id": "5", "IsBool": true},
+				map[string]interface{}{"id": "6", "IsBool": false},
+				map[string]interface{}{"id": "7", "IsBool": false},
+				map[string]interface{}{"id": "8", "IsBool": false},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_FINITENUMBER(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsFiniteNumber",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsFiniteNumber,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsFiniteNumber": false},
+				map[string]interface{}{"id": "2", "IsFiniteNumber": false},
+				map[string]interface{}{"id": "3", "IsFiniteNumber": true},
+				map[string]interface{}{"id": "4", "IsFiniteNumber": true},
+				map[string]interface{}{"id": "5", "IsFiniteNumber": false},
+				map[string]interface{}{"id": "6", "IsFiniteNumber": false},
+				map[string]interface{}{"id": "7", "IsFiniteNumber": false},
+				map[string]interface{}{"id": "8", "IsFiniteNumber": false},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_INTEGER(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsInteger",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsInteger,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsInteger": false},
+				map[string]interface{}{"id": "2", "IsInteger": false},
+				map[string]interface{}{"id": "3", "IsInteger": true},
+				map[string]interface{}{"id": "4", "IsInteger": false},
+				map[string]interface{}{"id": "5", "IsInteger": false},
+				map[string]interface{}{"id": "6", "IsInteger": false},
+				map[string]interface{}{"id": "7", "IsInteger": false},
+				map[string]interface{}{"id": "8", "IsInteger": false},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_NULL(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsNull",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsNull,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsNull": true},
+				map[string]interface{}{"id": "2", "IsNull": false},
+				map[string]interface{}{"id": "3", "IsNull": false},
+				map[string]interface{}{"id": "4", "IsNull": false},
+				map[string]interface{}{"id": "5", "IsNull": false},
+				map[string]interface{}{"id": "6", "IsNull": false},
+				map[string]interface{}{"id": "7", "IsNull": false},
+				map[string]interface{}{"id": "8", "IsNull": false},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_NUMBER(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsNumber",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsNumber,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsNumber": false},
+				map[string]interface{}{"id": "2", "IsNumber": false},
+				map[string]interface{}{"id": "3", "IsNumber": true},
+				map[string]interface{}{"id": "4", "IsNumber": true},
+				map[string]interface{}{"id": "5", "IsNumber": false},
+				map[string]interface{}{"id": "6", "IsNumber": false},
+				map[string]interface{}{"id": "7", "IsNumber": false},
+				map[string]interface{}{"id": "8", "IsNumber": true},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_OBJECT(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsObject",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsObject,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsObject": false},
+				map[string]interface{}{"id": "2", "IsObject": false},
+				map[string]interface{}{"id": "3", "IsObject": false},
+				map[string]interface{}{"id": "4", "IsObject": false},
+				map[string]interface{}{"id": "5", "IsObject": false},
+				map[string]interface{}{"id": "6", "IsObject": false},
+				map[string]interface{}{"id": "7", "IsObject": true},
+				map[string]interface{}{"id": "8", "IsObject": false},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_PRIMITIVE(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsPrimitive",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsPrimitive,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsPrimitive": true},
+				map[string]interface{}{"id": "2", "IsPrimitive": true},
+				map[string]interface{}{"id": "3", "IsPrimitive": true},
+				map[string]interface{}{"id": "4", "IsPrimitive": true},
+				map[string]interface{}{"id": "5", "IsPrimitive": true},
+				map[string]interface{}{"id": "6", "IsPrimitive": false},
+				map[string]interface{}{"id": "7", "IsPrimitive": false},
+				map[string]interface{}{"id": "8", "IsPrimitive": true},
+			},
+		)
+	})
+
+	t.Run("Should execute function IS_STRING(path)", func(t *testing.T) {
+		testQueryExecute(
+			t,
+			parsers.SelectStmt{
+				SelectItems: []parsers.SelectItem{
+					{Path: []string{"c", "id"}},
+					{
+						Alias: "IsString",
+						Type:  parsers.SelectItemTypeFunctionCall,
+						Value: parsers.FunctionCall{
+							Type: parsers.FunctionCallIsString,
+							Arguments: []interface{}{
+								parsers.SelectItem{
+									Path: []string{"c", "obj"},
+									Type: parsers.SelectItemTypeField,
+								},
+							},
+						},
+					},
+				},
+				Table: parsers.Table{Value: "c"},
+			},
+			mockData,
+			[]memoryexecutor.RowType{
+				map[string]interface{}{"id": "1", "IsString": false},
+				map[string]interface{}{"id": "2", "IsString": true},
+				map[string]interface{}{"id": "3", "IsString": false},
+				map[string]interface{}{"id": "4", "IsString": false},
+				map[string]interface{}{"id": "5", "IsString": false},
+				map[string]interface{}{"id": "6", "IsString": false},
+				map[string]interface{}{"id": "7", "IsString": false},
+				map[string]interface{}{"id": "8", "IsString": false},
 			},
 		)
 	})