Episode 131
NOT VALID constraints
Postgres FM · Nikolay Samokhvalov and Michael Christofides
January 17, 202533m 56s
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Show Notes
Nikolay and Michael discuss adding constraints in an online fashion, using NOT VALID and then VALIDATE CONSTRAINT.
Here are some links to things they mentioned:
- ADD table_constraint NOT VALID https://www.postgresql.org/docs/current/sql-altertable.html#SQL-ALTERTABLE-DESC-ADD-TABLE-CONSTRAINT
- Our episode on zero-downtime migrations https://postgres.fm/episodes/zero-downtime-migrations
- VALIDATE CONSTRAINT https://www.postgresql.org/docs/current/sql-altertable.html#SQL-ALTERTABLE-DESC-VALIDATE-CONSTRAINT
- ALTER TABLE notes https://www.postgresql.org/docs/current/sql-altertable.html#SQL-ALTERTABLE-NOTES
- pgroll https://github.com/xataio/pgroll
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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
Topics
PostgresPostgreSQLDatabasesSQLtechnology