From 68e45f1c2c1cd7a80caef03125ebbbd5c9258e96 Mon Sep 17 00:00:00 2001
From: LIN <chuanlin252@163.com>
Date: Thu, 13 Feb 2025 13:32:40 +0800
Subject: [PATCH] Fix AutoMigrate, `alterColumn` The previous modifications
 were ignored

---
 migrator/migrator.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/migrator/migrator.go b/migrator/migrator.go
index cec4e30f..c0e739a7 100644
--- a/migrator/migrator.go
+++ b/migrator/migrator.go
@@ -531,7 +531,7 @@ func (m Migrator) MigrateColumn(value interface{}, field *schema.Field, columnTy
 	}
 
 	// check default value
-	if !field.PrimaryKey {
+	if !alterColumn && !field.PrimaryKey {
 		currentDefaultNotNull := field.HasDefaultValue && (field.DefaultValueInterface != nil || !strings.EqualFold(field.DefaultValue, "NULL"))
 		dv, dvNotNull := columnType.DefaultValue()
 		if dvNotNull && !currentDefaultNotNull {