- Sources: primary, discussion
- Summary: AWS announced foreign key constraint support in Amazon Aurora DSQL on 2026-08-27. Aurora DSQL is a serverless SQL database with PostgreSQL compatibility and active-active multi-Region availability, and the announcement states that constraints can be added to new and existing tables with the NO ACTION, RESTRICT, CASCADE, SET NULL and SET DEFAULT referential actions. The feature is available in all AWS Regions where Aurora DSQL is available.
- Why it matters: Schemas ported to Aurora DSQL with foreign keys stripped out can go back to their original form, and orphaned-row bugs that application code had to prevent now fail at write time where they can be seen.
send feedback on this story