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synapse/changelog.d/14409.bugfix

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Fix PostgreSQL sometimes using table scans for `event_search` (#14409) PostgreSQL may underestimate the number of distinct `room_id`s in `event_search`, which can cause it to use table scans for queries for multiple rooms. Fix this by setting `n_distinct` on the column. Resolves #14402. Signed-off-by: Sean Quah <seanq@matrix.org>
2022-11-10 12:02:27 -07:00
Fix PostgreSQL sometimes using table scans for queries against the `event_search` table, taking a long time and a large amount of IO.