pgsql: CheckNNConstraintFetch: Fill all of ConstrCheck in a single pass - Mailing list pgsql-committers

From Álvaro Herrera
Subject pgsql: CheckNNConstraintFetch: Fill all of ConstrCheck in a single pass
Date
Msg-id E1vE3k6-0044CA-0p@gemulon.postgresql.org
Whole thread Raw
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CheckNNConstraintFetch: Fill all of ConstrCheck in a single pass

Previously, we'd fill all fields except ccbin, and only later obtain and
detoast ccbin, with hypothetical failures being possible.  If ccbin is
null (rare catalog corruption I have never witnessed) or its a corrupted
toast entry, we leak a tiny bit of memory in CacheMemoryContext from
having strdup'd the constraint name.  Repair these by only attempting to
fill the struct once ccbin has been detoasted.

Author: Ranier Vilela <ranier.vf@gmail.com>
Discussion: https://postgr.es/m/CAEudQAr=i3_Z4GvmediX900+sSySTeMkvuytYShhQqEwoGyvhA@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/94f95d91b025cb6752b4118bb0b30851e3d64df9

Modified Files
--------------
src/backend/utils/cache/relcache.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)


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