From bb0dd9dc384469ee13d37601d8394aa8e601b146 Mon Sep 17 00:00:00 2001
From: qqxhb <1252905006@qq.com>
Date: Tue, 5 Sep 2023 21:35:58 +0800
Subject: [PATCH] feat: default value nil

---
 table.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/table.go b/table.go
index 0c9932b..03bf80e 100644
--- a/table.go
+++ b/table.go
@@ -231,9 +231,8 @@ func (*defaultParser) getColumnType(col *ast.ColumnDef) gorm.ColumnType {
 		if opt.Tp == ast.ColumnOptionDefaultValue {
 			if v, ok := opt.Expr.(*test_driver.ValueExpr); ok {
 				ct.DefaultValueValue = sql.NullString{
-					Valid: true, String: fmt.Sprint(v.Datum.GetValue()),
+					Valid: v.Datum.GetValue() != nil, String: fmt.Sprint(v.Datum.GetValue()),
 				}
-
 				continue
 			}