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Commit 4768a1e2 authored by Sean McGivern's avatar Sean McGivern
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Set merge_request_diff_id on MR when creating

Once we migrate existing MRs to have this column, we will be able to get the
latest diff for a single merge request more efficiently, and (more importantly)
get all latest diffs for a collection of MRs efficiently.
parent 16a56a3f796c
......@@ -48,6 +48,10 @@ def st_commits
# Collect information about commits and diff from repository
# and save it to the database as serialized data
def save_git_content
.where('id = ? AND COALESCE(latest_merge_request_diff_id, 0) < ?', self.merge_request_id,
title: Make finding most recent merge request diffs more efficient
title: Add a latest_merge_request_diff_id column to merge_requests
merge_request: 15035
type: performance
......@@ -113,7 +113,7 @@ excluded_attributes:
- :milestone_id
- :ref_fetched
- :merge_jid
- :merge_request_diff_id
- :latest_merge_request_diff_id
- :awardable_id
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