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Re: pgsql-server/src/backend/optimizer/util pathnode.c - Mailing list pgsql-committers

From Christopher Kings-Lynne
Subject Re: pgsql-server/src/backend/optimizer/util pathnode.c
Date
Msg-id 40455BA7.8010003@familyhealth.com.au
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In response to pgsql-server/src/backend/optimizer/util pathnode.c  (tgl@svr1.postgresql.org (Tom Lane))
Responses Re: pgsql-server/src/backend/optimizer/util pathnode.c  (Tom Lane <tgl@sss.pgh.pa.us>)
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>     Teach is_distinct_query to recognize that GROUP BY forces a subquery's
>     output to be distinct, if all the GROUP BY columns appear in the output.
>     Per suggestion from Dennis Haney.

Will this have should-be-in-release-notes side effects just as the
results of a DISTINCT over a GROUP BY no longer being sorted?

Chris

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