diff --git a/column.go b/column.go
index d4d83145..d9362e98 100644
--- a/column.go
+++ b/column.go
@@ -13,12 +13,13 @@ const (
 	ONLYFROMDB
 )
 
-// database column
+// Column defines database column
 type Column struct {
 	Name            string
 	TableName       string
 	FieldName       string
 	SQLType         SQLType
+	IsJSON          bool
 	Length          int
 	Length2         int
 	Nullable        bool
diff --git a/type.go b/type.go
index 86048225..bea8d235 100644
--- a/type.go
+++ b/type.go
@@ -117,9 +117,9 @@ var (
 		Integer:   NUMERIC_TYPE,
 		BigInt:    NUMERIC_TYPE,
 
-		Enum:  TEXT_TYPE,
-		Set:   TEXT_TYPE,
-		Json:  TEXT_TYPE,
+		Enum: TEXT_TYPE,
+		Set:  TEXT_TYPE,
+		//Json:  TEXT_TYPE,
 		Jsonb: TEXT_TYPE,
 
 		Char:       TEXT_TYPE,