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(parent: 5b1b728) | patch
Repair crash with unsortable grouping sets.
authorAndrew Gierth <rhodiumtoad@postgresql.org>
Wed, 21 Mar 2018 11:34:09 +0000 (11:34 +0000)
committerAndrew Gierth <rhodiumtoad@postgresql.org>
Wed, 21 Mar 2018 11:41:53 +0000 (11:41 +0000)
commitcf21c46495897cf3a59f2b1230b522a969a17bea
treeda205122a9899cbb9549c27f4c6ccfe3036caa39tree | snapshot
parent5b1b7286c9e12dfe6aad6d722b704d3e948a3d03commit | diff
Repair crash with unsortable grouping sets.

If there were multiple grouping sets, none of them empty, all of which
were unsortable, then an oversight in consider_groupingsets_paths led
to a null pointer dereference. Fix, and add a regression test for this
case.

Per report from Dang Minh Huong, though I didn't use their patch.

Backpatch to 10.x where hashed grouping sets were added.
src/backend/optimizer/plan/planner.c diff | blob | history
src/test/regress/expected/groupingsets.out diff | blob | history
src/test/regress/sql/groupingsets.sql diff | blob | history
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