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Re:What's new in the Postgres 16 query planner (a.k.a. optim... by davidrowley on Friday February 09, 2024 @07:40PM (#39322278)
> If the sort order isn't fully determined by a query, can the query plan influence the result order?

Yes. When running a query, PostgreSQL won't make any effort to provide a stable order of rows beyond what's specified in the ORDER BY.

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