Episode 68
Over-indexing
Postgres FM · Nikolay Samokhvalov and Michael Christofides
October 20, 202342m 45s
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Show Notes
Nikolay and Michael discuss over-indexing — what we mean by it, the regular issues people discuss about it, as well as a novel one Nikolay has come across and benchmarked recently.
Here are some links to things they mentioned:
- Nikolay’s tweet on over-indexing https://twitter.com/samokhvalov/status/1713101666629927112
- Heap-Only Tuples (HOT) optimization https://www.postgresql.org/docs/current/storage-hot.html
- Our episode on index maintenance https://postgres.fm/episodes/index-maintenance
- PgBouncer now supports prepared statements https://github.com/pgbouncer/pgbouncer/releases/tag/pgbouncer_1_21_0
- Our episode on connection poolers https://postgres.fm/episodes/connection-poolers
- Configurable FP_LOCK_SLOTS_PER_BACKEND (Hackers mailing list discussion) https://www.postgresql.org/message-id/flat/CAM527d-uDn5osa6QPKxHAC6srOfBH3M8iXUM%3DewqHV6n%3Dw1u8Q%40mail.gmail.com
- LWLock:lock_manager (Amazon RDS docs) https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/wait-event.lw-lock-manager.html
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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 brought to you by:
- Nikolay Samokhvalov, founder of Postgres.ai
- Michael Christofides, founder of pgMustard
With special thanks to:
- Jessie Draws for the amazing artwork
Topics
PostgresPostgreSQLDatabasesSQLtechnology