Episode 153
caSe-inSENsiTive
Postgres FM · Nikolay Samokhvalov and Michael Christofides
August 8, 202526m 22s
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Show Notes
Nikolay and Michael discuss case-insensitive data — when we want to treat columns as case-insensitive, and the pros and cons of using citext, functions like lower(), or a custom collation.
Here are some links to things they mentioned:
- citext https://www.postgresql.org/docs/current/citext.html
- Our episode on over-indexing https://postgres.fm/episodes/over-indexing
- Nondeterministic collations https://www.postgresql.org/docs/current/collation.html#COLLATION-NONDETERMINISTIC
- How to migrate from Django’s PostgreSQL CI Fields to use a case-insensitive collation (blog post by Adam Johnson) https://adamj.eu/tech/2023/02/23/migrate-django-postgresql-ci-fields-case-insensitive-collation
- The collation versioning problem with ICU 73 (blog post by Daniel Vérité) https://postgresql.verite.pro/blog/2023/10/20/icu-73-versioning.html
- amcheck https://www.postgresql.org/docs/current/amcheck.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 produced by:
- Michael Christofides, founder of pgMustard
- Nikolay Samokhvalov, founder of Postgres.ai
With credit to:
- Jessie Draws for the elephant artwork
Topics
PostgresPostgreSQLDatabasesSQLtechnology