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Run ANALYZE
after fiddling with stats (#16849)
Introduced in #16833 Fixes #16844
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changelog.d/16849.bugfix
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changelog.d/16849.bugfix
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Fix database performance regression due to changing Postgres table statistics. Introduced in v1.100.0rc1.
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@ -16,3 +16,5 @@
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-- figuring that out by itself.
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ALTER TABLE event_auth_chain_links ALTER origin_chain_id SET (n_distinct = -0.5);
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ALTER TABLE event_auth_chain_links ALTER target_chain_id SET (n_distinct = -0.5);
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-- We should have done an `ANALYZE event_auth_chain_links` here, but we forgot.
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--
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-- This file is licensed under the Affero General Public License (AGPL) version 3.
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--
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-- Copyright (C) 2023 New Vector, Ltd
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--
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-- This program is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU Affero General Public License as
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-- published by the Free Software Foundation, either version 3 of the
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-- License, or (at your option) any later version.
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--
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-- See the GNU Affero General Public License for more details:
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-- <https://www.gnu.org/licenses/agpl-3.0.html>.
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-- We need to do an ANALYZE after `01_auth_links_stats.sql.postgres`, where we
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-- fiddled with the stats.
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ANALYZE event_auth_chain_links;
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