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(parent: 6f1c7a2) | patch
Robustify tuplesort's free_sort_tuple function
authorDavid Rowley <drowley@postgresql.org>
Tue, 13 Jul 2021 01:30:26 +0000 (13:30 +1200)
committerDavid Rowley <drowley@postgresql.org>
Tue, 13 Jul 2021 01:30:26 +0000 (13:30 +1200)
commit645c5d11939641ce4ad14f7e547e9c5ec2b98f71
treeb8243caf4d62ea71729d3ac178066a613436b313tree
parent6f1c7a2d0fe0a3cf4a46053f50d0931248ba6e73commit | diff
Robustify tuplesort's free_sort_tuple function

41469253e went to the trouble of removing a theoretical bug from
free_sort_tuple by checking if the tuple was NULL before freeing it. Let's
make this a little more robust by also setting the tuple to NULL so that
should we be called again we won't end up doing a pfree on the already
pfree'd tuple. Per advice from Tom Lane.

Discussion: https://postgr.es/m/3188192.1626136953@sss.pgh.pa.us
Backpatch-through: 9.6, same as 41469253e
src/backend/utils/sort/tuplesort.c diff | blob | blame | history
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