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@ -104,6 +104,10 @@ features of GitLab work with MySQL/MariaDB:
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See [issue #30472][30472] for more information.
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See [issue #30472][30472] for more information.
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1. GitLab Geo does [not support MySQL](https://docs.gitlab.com/ee/gitlab-geo/database.html#mysql-replication).
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1. GitLab Geo does [not support MySQL](https://docs.gitlab.com/ee/gitlab-geo/database.html#mysql-replication).
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1. [Zero downtime migrations][zero] do not work with MySQL
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1. [Zero downtime migrations][zero] do not work with MySQL
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1. GitLab [optimizes the loading of dashboard events](https://gitlab.com/gitlab-org/gitlab-ce/issues/31806) using [PostgreSQL LATERAL JOINs](https://blog.heapanalytics.com/postgresqls-powerful-new-join-type-lateral/).
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1. In general, SQL optimized for PostgreSQL may run much slower in MySQL due to
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differences in query planners. For example, subqueries that work well in PostgreSQL
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may not be [performant in MySQL](https://dev.mysql.com/doc/refman/5.7/en/optimizing-subqueries.html)
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1. We expect this list to grow over time.
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1. We expect this list to grow over time.
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Existing users using GitLab with MySQL/MariaDB are advised to
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Existing users using GitLab with MySQL/MariaDB are advised to
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