Spanner now supports IDENTITY columns. IDENTITY columns lets you automatically generate unique integer values for key and non-key columns, and aligns with the ANSI standard
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## Feature
Spanner now supports `IDENTITY` columns. `IDENTITY` columns lets you automatically generate unique integer values for key and non-key columns, and aligns with the ANSI standard. For more information, see [IDENTITY columns](https://cloud.google.com/spanner/docs/primary-key-default-value#identity-columns).