From 6ea9385e63d62cd0c13306f56645bee3590a2114 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=A5=B6=E7=88=B8?= <1@5.nu>
Date: Thu, 7 Jun 2018 11:08:59 +0800
Subject: [PATCH] Optimize sql statement

---
 models/migrations/v67.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/models/migrations/v67.go b/models/migrations/v67.go
index c7c0914f0..496a254e0 100644
--- a/models/migrations/v67.go
+++ b/models/migrations/v67.go
@@ -8,6 +8,6 @@ import (
 )
 
 func cleanUnlinkedWebhookAndHookTasks(x *xorm.Engine) error {
-	_, err := x.Exec(`DELETE FROM webhook WHERE (SELECT COUNT(*) FROM repository WHERE id = webhook.repo_id)=0;DELETE FROM hook_task WHERE (SELECT COUNT(*) FROM repository WHERE id = hook_task.repo_id)=0;`)
+	_, err := x.Exec(`DELETE FROM webhook WHERE (SELECT id FROM repository WHERE id = webhook.repo_id) ISNULL;DELETE FROM hook_task WHERE (SELECT id FROM repository WHERE id = hook_task.repo_id) ISNULL;`)
 	return err
 }