diff --git a/internal/usecases/convertquery/createConstraints.go b/internal/usecases/convertquery/createConstraints.go
index 74417620adc71e3cd2677b87e7e8f08ddbce802b..f5415e34269c7ce2620255eb516dc0ca909fd032 100644
--- a/internal/usecases/convertquery/createConstraints.go
+++ b/internal/usecases/convertquery/createConstraints.go
@@ -44,6 +44,11 @@ func createConstraintBoolExpression(constraint *entity.QueryConstraintStruct, na
 		line  string
 	)
 
+	// Constraint datatypes back end
+	// text		  MatchTypes: EQ/NEQ/contains/excludes
+	// number   MatchTypes: EQ/NEQ/GT/LT/GET/LET
+	// bool     MatchTypes: EQ/NEQ
+
 	switch constraint.DataType {
 	case "text":
 		value = fmt.Sprintf("\"%s\"", constraint.Value)