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Diffstat (limited to 'doc/development/filtering_by_label.md')
| -rw-r--r-- | doc/development/filtering_by_label.md | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/doc/development/filtering_by_label.md b/doc/development/filtering_by_label.md index 6f9811f7e05..9e759744a1a 100644 --- a/doc/development/filtering_by_label.md +++ b/doc/development/filtering_by_label.md @@ -47,9 +47,9 @@ This is more complicated than is ideal. It makes the query construction more prone to errors (such as [issue #15557](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/15557)). -## Attempt A: WHERE EXISTS +## Attempt A: `WHERE EXISTS` -### Attempt A1: use multiple subqueries with WHERE EXISTS +### Attempt A1: use multiple subqueries with `WHERE EXISTS` In [issue #37137](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/37137) and its associated [merge request](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14022), @@ -82,7 +82,7 @@ AND (EXISTS ( While this worked without schema changes, and did improve readability somewhat, it did not improve query performance. -### Attempt A2: use label IDs in the WHERE EXISTS clause +### Attempt A2: use label IDs in the `WHERE EXISTS` clause In [merge request #34503](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/34503), we followed a similar approach to A1. But this time, we did a separate query to fetch the IDs of the labels used in the filter so that we avoid the `JOIN` in the `EXISTS` clause and filter directly by |