Intro to query optimization

Here are links to a few things we mentioned: Using EXPLAIN (PostgreSQL documentation)explain.depesz.comexplain.dalibo.compgMustard EverSQLpganalyzepg_stat_monitor (Extension by Percona)Recent thread on hackers mailing list about plan_id in pg_stat_activityauto_explainEXPLAIN observer effect (Ongres blog post by Álvaro Hernández)auto_explain overhead (blog post by Michael)  pg_test_timingDatabase Lab Engine (for thin clones)Our previous episode on BUFFERSEXPLAIN Explained (talk by Josh Berkus)A beginner's guide to EXPLAIN (talk by Michael)A deeper dive into EXPLAIN (talk by Michael)EXPLAIN glossary (pgMustard docs)Topic suggestions document------------------------What did you like or not like? What should we discuss next time? Let us know by tweeting us on @samokhvalov and @michristofides or by commenting on our Google doc.If you would like to share this episode, here's a good link (and thank you!)Postgres FM is brought to you by:Nikolay Samokhvalov, founder of Postgres.aiMichael Christofides, founder of pgMustardWith special thanks to:Jessie Draws for the elephant artwork