From 036f488e0a9521e4341f2a202cc3f379128a8a7c Mon Sep 17 00:00:00 2001
From: Felix Kollmann <mail@fkollmann.de>
Date: Sat, 19 Apr 2025 13:01:33 +0200
Subject: [PATCH] Fix creating unique index on non-unique field

(which would be created multiple times and fail during migration)
---
 migrator.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/migrator.go b/migrator.go
index e266cfd..018368d 100644
--- a/migrator.go
+++ b/migrator.go
@@ -109,7 +109,7 @@ func (m Migrator) MigrateColumnUnique(value interface{}, field *schema.Field, co
 					return err
 				}
 			}
-			if field.UniqueIndex != "" {
+			if field.UniqueIndex != "" && !queryTx.Migrator().HasIndex(value, field.UniqueIndex) {
 				if err := execTx.Migrator().CreateIndex(value, field.UniqueIndex); err != nil {
 					return err
 				}