March 05, 2025 — Search optimization improves the performance of queries containing scalar subqueries

The search optimization service can now improve the performance of queries containing scalar subqueries. A scalar subquery returns a single value (one column of one row). To improve query performance, make sure search optimization is enabled for the column that is equal to the result of the subquery.

For more information, see Speeding up queries with scalar subqueries using search optimization.