Fix memory leak in Memoize code

David Rowley <drowley@postgresql.org>

Commit: 689af6db6c76a7966efdb702326f85fa0d8a04ef
Author: David Rowley <drowley@postgresql.org>
Date: 2023-10-05T07:31:51Z
Releases: 15.5
Fix memory leak in Memoize code

Ensure we switch to the per-tuple memory context to prevent any memory
leaks of detoasted Datums in MemoizeHash_hash() and MemoizeHash_equal().

Reported-by: Orlov Aleksej
Author: Orlov Aleksej, David Rowley
Discussion: https://postgr.es/m/83281eed63c74e4f940317186372abfd%40cft.ru
Backpatch-through: 14, where Memoize was added

Files

PathChange+/−
src/backend/executor/nodeMemoize.c modified +22 −3

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