From d38fb942e188021d7def5eb577a73c82b8e5e66d Mon Sep 17 00:00:00 2001
From: Lin Jen-Shin <godfat@godfat.org>
Date: Thu, 16 Feb 2017 21:08:47 +0800
Subject: [PATCH] Optimize Ci::Pipeline.latest query
Since we already know which ref we want, we could filter it out first.
Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/issues/26570#note_23423376
Closes #26570
---
app/models/ci/pipeline.rb | 1 +
1 file changed, 1 insertion(+)
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index dc4590a9923..2a987bfa87b 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -91,6 +91,7 @@ module Ci
scope :latest, ->(ref = nil) do
max_id = unscope(:select)
.select("max(#{quoted_table_name}.id)")
+ .where(ref: ref)
.group(:ref, :sha)
relation = ref ? where(ref: ref) : self
--
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