GitHub user avamingli added a comment to the discussion: Support Parallel Processing of Window Functions.
> To pass parallel test cases, we need to modify the SQL in that case. Postgres discussion: https://www.postgresql.org/message-id/flat/fbb5c0d7-4a96-4dd1-9a26-5dfccfac667a%40Spark AFAK, disabling parallel execution for window aggregates without a ORDER BY clause (When there is no Partition By at the same time) is the preferred approach. While the unstable results are technically valid per SQL standards, proactively avoiding this behavior prevents customer confusion between actual bugs and intended SQL standard behavior. @my-ship-it , @jianlirong mind sharing your perspectives on this? GitHub link: https://github.com/apache/cloudberry/discussions/1216#discussioncomment-13774108 ---- This is an automatically sent email for dev@cloudberry.apache.org. To unsubscribe, please send an email to: dev-unsubscr...@cloudberry.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@cloudberry.apache.org For additional commands, e-mail: dev-h...@cloudberry.apache.org
