On Wed, Feb 12, 2020 at 10:23:22AM -0700, Michael Lewis wrote: >It may also be worth noting that it is possible to make autovacuum/analyze >more aggressive, perhaps only on the tables that see large changes in data >that might result in a statistics issue. If you could share a query, >explain analyze output, and pseudo code or at least description of what >sort of bulk operations are being done, then more insight could be offered.
Another thing you can do is deploy auto_explain, and log explain plan for long-runnning queries. That won't fix the root cause, but it will help you with confirming the root cause - you'll see the query plan, which should give you enough context.
regards
-- Tomas Vondra http://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
