Advanced EXPLAIN

Postgres FM

Nikolay and Michael discuss some more advanced topics around EXPLAIN, including some tips for complex query plans, some recent improvements, and an idea or two that might make it even better.
Here are some links to things they mentioned:

• Michael’s solo episode on EXPLAIN basics https://postgres.fm/episodes/explain
• Our episode on auto_explain https://postgres.fm/episodes/auto_explain
• Which cloud providers support auto_explain? (Blog post by Michael) https://www.pgmustard.com/blog/which-cloud-providers-support-auto-explain
• psychopg https://www.psycopg.org
• Our first episode on BUFFERS https://postgres.fm/episodes/buffers-by-default
• Our second episode on BUFFERS https://postgres.fm/episodes/buffers-ii-the-sequel
• track_io_timing https://www.postgresql.org/docs/current/runtime-config-statistics.html#GUC-TRACK-IO-TIMING
• compute_query_id https://www.postgresql.org/docs/current/runtime-config-statistics.html#GUC-COMPUTE-QUERY-ID
• EXPLAIN: beyond the basics (talk by Michael) https://www.youtube.com/watch?v=sGkSOvuaPs4

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What did you like or not like? What should we discuss next time? Let us know via a YouTube comment, on social media, or by commenting on our Google doc!

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Postgres FM is produced by:

• Michael Christofides, founder of pgMustard
• Nikolay Samokhvalov, founder of Postgres.ai

With special thanks to:

• Jessie Draws for the elephant artwork