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| author | Thomas Munro <tmunro@postgresql.org> | 2022-04-04 10:52:02 +1200 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2022-04-04 10:52:02 +1200 |
| commit | cc58eecc5d75a9329a6d49a25a6499aea7ee6fd6 (patch) | |
| tree | 81d83f814f1b5722423ae5fb7895dd5cb14b97ee /src/backend/access/gist/gistbuild.c | |
| parent | 591e088dd5b357796e136c13dfcdb1f06fd7a3c2 (diff) | |
| download | postgresql-cc58eecc5d75a9329a6d49a25a6499aea7ee6fd6.tar.gz postgresql-cc58eecc5d75a9329a6d49a25a6499aea7ee6fd6.zip | |
Fix tuplesort optimization for CLUSTER-on-expression.
When dispatching sort operations to specialized variants, commit
69749243 failed to handle the case where CLUSTER-sort decides not to
initialize datum1 and isnull1. Fix by hoisting that decision up a level
and advertising whether datum1 can be relied on, in the Tuplesortstate
object.
Per reports from UBsan and Valgrind build farm animals, while running
the cluster.sql test.
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://postgr.es/m/CAFBsxsF1TeK5Fic0M%2BTSJXzbKsY6aBqJGNj6ptURuB09ZF6k_w%40mail.gmail.com
Diffstat (limited to 'src/backend/access/gist/gistbuild.c')
0 files changed, 0 insertions, 0 deletions