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(parent: 87b7a65) | patch
Robustify tuplesort's free_sort_tuple function
authorDavid Rowley <drowley@postgresql.org>
Tue, 13 Jul 2021 01:32:10 +0000 (13:32 +1200)
committerDavid Rowley <drowley@postgresql.org>
Tue, 13 Jul 2021 01:32:10 +0000 (13:32 +1200)
commitd0e44bae4923cebe08fd03f8ac6cb42757eec480
tree23005bf3c2b845e47b0f5864103c5cfebfb92e53tree | snapshot
parent87b7a652b3a2a291ec46a6a4592fbbd7e0a96529commit | 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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