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authorTom Lane <tgl@sss.pgh.pa.us>2020-04-03 11:24:56 -0400
committerTom Lane <tgl@sss.pgh.pa.us>2020-04-03 11:24:56 -0400
commit7b1552283465acc10a88038fe87c7901198c3b5e (patch)
treebbe22a5bbd233df728d55a637a99d39e6290857b /doc/src
parent42da1db7b9d5dd2d3d2e887adb19c6a3c28804b9 (diff)
downloadpostgresql-7b1552283465acc10a88038fe87c7901198c3b5e.tar.gz
postgresql-7b1552283465acc10a88038fe87c7901198c3b5e.zip
Fix bogus CALLED_AS_TRIGGER() defenses.
contrib/lo's lo_manage() thought it could use trigdata->tg_trigger->tgname in its error message about not being called as a trigger. That naturally led to a core dump. unique_key_recheck() figured it could Assert that fcinfo->context is a TriggerData node in advance of having checked that it's being called as a trigger. That's harmless in production builds, and perhaps not that easy to reach in any case, but it's logically wrong. The first of these per bug #16340 from William Crowell; the second from manual inspection of other CALLED_AS_TRIGGER call sites. Back-patch the lo.c change to all supported branches, the other to v10 where the thinko crept in. Discussion: https://postgr.es/m/16340-591c7449dc7c8c47@postgresql.org
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