Add new index for merge_request_diffs
-
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What does this MR do and why?
Issue: #440185 (comment 1896868413)
In order to improve the query performance, adjust the index of merge_request_diffs
table.
- Create new
[project_id, base_commit_sha]
index - In addition, update the query statement of the
Ci::Pipeline#merge_requests_as_base_pipeline
: !152602 (comment 1901975373)
Database migration changes:
main: == [advisory_lock_connection] object_id: 125140, pg_backend_pid: 62500
main: == 20240515160624 AddMergeRequestDiffsProjectIdBaseCommitShaIndex: migrating ==
main: -- index_exists?(:merge_request_diffs, [:project_id, :base_commit_sha], {:name=>"index_merge_request_diffs_on_project_id_base_commit_sha", :algorithm=>:concurrently})
main: -> 0.0041s
main: -- add_index_options(:merge_request_diffs, [:project_id, :base_commit_sha], {:name=>"index_merge_request_diffs_on_project_id_base_commit_sha", :algorithm=>:concurrently})
main: -> 0.0003s
main: == 20240515160624 AddMergeRequestDiffsProjectIdBaseCommitShaIndex: migrated (0.0333s)
BEFORE INDEX:
https://console.postgres.ai/gitlab/gitlab-production-main/sessions/28268/commands/88225
AFTER INDEX:
https://console.postgres.ai/gitlab/gitlab-production-main/sessions/28268/commands/88229
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Edited by Zhiyuan Lu