Tag:table-constraints

Articles tagged "table-constraints".

• 33 MIN READ•Oct 28, 2026

  Primary Keys Come to Apache Iceberg V4, and Most of Them Start Out Unenforced

  Apache Iceberg V4 adds primary key, unique and check constraints, an enforced flag and per-snapshot status. What the spec says and how to prepare tables.

  apache-icebergiceberg-v4data-quality