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(parent: 204f646) | patch
Robustify tuplesort's free_sort_tuple function
authorDavid Rowley <drowley@postgresql.org>
Tue, 13 Jul 2021 01:28:19 +0000 (13:28 +1200)
committerDavid Rowley <drowley@postgresql.org>
Tue, 13 Jul 2021 01:28:19 +0000 (13:28 +1200)
commit2fde8e49a24706773d0573d3b8888a76353094fc
treeb2f5f8987b1502d5a04419d5ad902fc4adc107fftree | snapshot
parent204f646a22f294a359ec463c128d01e1bc9117c5commit | 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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