diff --git a/cmd/gf/internal/cmd/cmd_gen_dao.go b/cmd/gf/internal/cmd/cmd_gen_dao.go
index 6d8ae5af8..af8ab107f 100644
--- a/cmd/gf/internal/cmd/cmd_gen_dao.go
+++ b/cmd/gf/internal/cmd/cmd_gen_dao.go
@@ -568,6 +568,7 @@ func generateStructFieldDefinition(field *gdb.TableField, in generateStructDefin
 	t, _ := gregex.ReplaceString(`\(.+\)`, "", field.Type)
 	t = gstr.Split(gstr.Trim(t), " ")[0]
 	t = gstr.ToLower(t)
+
 	switch t {
 	case "binary", "varbinary", "blob", "tinyblob", "mediumblob", "longblob":
 		typeName = "[]byte"
@@ -585,7 +586,18 @@ func generateStructFieldDefinition(field *gdb.TableField, in generateStructDefin
 		} else {
 			typeName = "int64"
 		}
-
+	case "_int2":
+		if gstr.ContainsI(field.Type, "unsigned") {
+			typeName = "[]uint"
+		} else {
+			typeName = "[]int"
+		}
+	case "_int4", "_int8":
+		if gstr.ContainsI(field.Type, "unsigned") {
+			typeName = "[]uint64"
+		} else {
+			typeName = "[]int64"
+		}
 	case "real":
 		typeName = "float32"
 
diff --git a/database/gdb/gdb_core_structure.go b/database/gdb/gdb_core_structure.go
index 38daa20f2..762b9f65e 100644
--- a/database/gdb/gdb_core_structure.go
+++ b/database/gdb/gdb_core_structure.go
@@ -153,7 +153,24 @@ func (c *Core) convertFieldValueToLocalValue(fieldValue interface{}, fieldType s
 			gconv.Uint(gconv.String(fieldValue))
 		}
 		return gconv.Int(gconv.String(fieldValue))
-
+	case
+		"_int2":
+		if gstr.ContainsI(fieldType, "unsigned") {
+			gconv.Uints(gconv.String(fieldValue))
+		}
+		return gconv.Ints(gstr.ReplaceByMap(gconv.String(fieldValue), map[string]string{
+			"{": "[",
+			"}": "]",
+		}))
+	case
+		"_int4", "_int8":
+		if gstr.ContainsI(fieldType, "unsigned") {
+			gconv.Uint64(gconv.String(fieldValue))
+		}
+		return gconv.Int64s(gstr.ReplaceByMap(gconv.String(fieldValue), map[string]string{
+			"{": "[",
+			"}": "]",
+		}))
 	case
 		"int8", // For pgsql, int8 = bigint.
 		"big_int",