diff options
-rw-r--r-- | app/models/merge_request.rb | 14 | ||||
-rw-r--r-- | changelogs/unreleased/fix-502-mrs-with-lots-of-versions.yml | 6 |
2 files changed, 19 insertions, 1 deletions
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb index efd8cca2947..dd4e67bc9da 100644 --- a/app/models/merge_request.rb +++ b/app/models/merge_request.rb @@ -865,7 +865,19 @@ class MergeRequest < ActiveRecord::Base # def all_commit_shas if persisted? - column_shas = MergeRequestDiffCommit.where(merge_request_diff: merge_request_diffs).limit(10_000).pluck('sha') + # MySQL doesn't support LIMIT in a subquery. + diffs_relation = + if Gitlab::Database.postgresql? + merge_request_diffs.order(id: :desc).limit(100) + else + merge_request_diffs + end + + column_shas = MergeRequestDiffCommit + .where(merge_request_diff: diffs_relation) + .limit(10_000) + .pluck('sha') + serialised_shas = merge_request_diffs.where.not(st_commits: nil).flat_map(&:commit_shas) (column_shas + serialised_shas).uniq diff --git a/changelogs/unreleased/fix-502-mrs-with-lots-of-versions.yml b/changelogs/unreleased/fix-502-mrs-with-lots-of-versions.yml new file mode 100644 index 00000000000..32cdfba4eec --- /dev/null +++ b/changelogs/unreleased/fix-502-mrs-with-lots-of-versions.yml @@ -0,0 +1,6 @@ +--- +title: Ensure merge requests with lots of version don't time out when searching for + pipelines +merge_request: +author: +type: performance |