gitlab-org--gitlab-foss/changelogs/unreleased/sh-preload-associations-for-group-api.yml

---
title: Eliminate N+1 queries in /api/groups/:id
merge_request: 24513
author:
type: performance
Eliminate N+1 queries in /api/groups/:id In https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15475/diffs, a significant amount of work went into eliminating N+1 queries in the /api/groups/:id/projects endpoint. We can reuse the `Entities::Project.prepare_relation` call on the projects. In a group with 2,573 projects on GitLab.com, this change significantly improves performance: * 18019 SQL queries down to 21 * Time spent in DB: 70 s down to 384 ms Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/49845 2019-01-20 01:10:20 -05:00			`---`
			`title: Eliminate N+1 queries in /api/groups/:id`
			`merge_request: 24513`
			`author:`
			`type: performance`