Multi-column indexes

Postgres FM

Michael Christofides and Nikolay Samokhvalov에서 제공하는 콘텐츠입니다. 에피소드, 그래픽, 팟캐스트 설명을 포함한 모든 팟캐스트 콘텐츠는 Michael Christofides and Nikolay Samokhvalov 또는 해당 팟캐스트 플랫폼 파트너가 직접 업로드하고 제공합니다. 누군가가 귀하의 허락 없이 귀하의 저작물을 사용하고 있다고 생각되는 경우 여기에 설명된 절차를 따르실 수 있습니다 https://ko.player.fm/legal.

19d ago 41:21

MP3•에피소드 홈

Nik and Michael discuss multi-column indexes in Postgres — what they are, how to think about them, and some guidance around using them effectively.
Here are some links to things they mentioned:

Multicolumn Indexes (docs) https://www.postgresql.org/docs/current/indexes-multicolumn.html
Our episode on Index-only scans https://postgres.fm/episodes/index-only-scans
Combining Multiple Indexes (docs) https://www.postgresql.org/docs/current/indexes-bitmap-scans.html
Enable BUFFERS with EXPLAIN ANALYZE by default https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=c2a4078ebad71999dd451ae7d4358be3c9290b07
“PostgreSQL includes an implementation of the standard btree […] The only limitation is that an index entry cannot exceed approximately one-third of a page” https://www.postgresql.org/docs/current/btree.html
Our episode on HOT updates https://postgres.fm/episodes/hot-updates
Our episode on LIMIT vs Performance https://postgres.fm/episodes/limit-vs-performance

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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 credit to:

Jessie Draws for the elephant artwork

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