Cloud Spanner Now Supports Secondary Indexes Based on Scalar Expressions
Google Cloud Spanner now supports creating secondary indexes using scalar expressions applied to one or more table columns. This new capability streamlines database schema design by eliminating the need to create and maintain dedicated generated columns solely for indexing purposes. It simplifies index management and can improve query performance for database administrators and developers working with Spanner.
Features (1) ›
- Spanner
Spanner supports creating secondary indexes based on scalar expressions that apply to one or more table columns. Expression indexes eliminate the need to create and maintain a dedicated generated column in your table for indexing purposes. For more information, see Create an index based on a scalar expression .
https://docs.cloud.google.com/release-notes#August_28_2026
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