Implement STRINGEQUALS

query_executors/memory_executor/string_functions.go

@@ -0,0 +1,41 @@
+package memoryexecutor
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/pikami/cosmium/parsers"
+)
+
+func strings_StringEquals(arguments []interface{}, queryParameters map[string]interface{}, row RowType) bool {
+	ignoreCase := false
+	if len(arguments) > 2 && arguments[2] != nil {
+		ignoreCaseItem := arguments[2].(parsers.SelectItem)
+		if value, ok := getFieldValue(ignoreCaseItem, queryParameters, row).(bool); ok {
+			ignoreCase = value
+		}
+	}
+
+	ex1Item := arguments[0].(parsers.SelectItem)
+	ex2Item := arguments[1].(parsers.SelectItem)
+
+	ex1 := getFieldValue(ex1Item, queryParameters, row)
+	ex2 := getFieldValue(ex2Item, queryParameters, row)
+
+	var ok bool
+	var str1 string
+	var str2 string
+
+	if str1, ok = ex1.(string); !ok {
+		fmt.Println("StringEquals got parameters of wrong type")
+	}
+	if str2, ok = ex2.(string); !ok {
+		fmt.Println("StringEquals got parameters of wrong type")
+	}
+
+	if ignoreCase {
+		return strings.EqualFold(str1, str2)
+	}
+
+	return str1 == str2
+}