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You can now create an identity column , sometimes referred to as an auto-incrementing column, on a table

PreviewVerifiedAdded Sep 22, 2026

You can now create an identity column , sometimes referred to as an auto-incrementing column, on a table. You can use identity columns to create and maintain primary keys on your tables. When you insert a row into a table that has an identity column, BigQuery generates a unique integer value for that column. This feature is in Preview .

Read Google Cloud's release notes

https://docs.cloud.google.com/bigquery/docs/release-notes#August_31_2026

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