pgsql: Fix memory leak in IndexScan node with reordering

From: Alexander Korotkov <akorotkov(at)postgresql(dot)org>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Fix memory leak in IndexScan node with reordering
Date: 2022-02-14 01:16:51
Message-ID: E1nJPz1-0001RR-0Q@gemulon.postgresql.org
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Fix memory leak in IndexScan node with reordering

Fix ExecReScanIndexScan() to free the referenced tuples while emptying the
priority queue. Backpatch to all supported versions.

Discussion: https://postgr.es/m/CAHqSB9gECMENBQmpbv5rvmT3HTaORmMK3Ukg73DsX5H7EJV7jw%40mail.gmail.com
Author: Aliaksandr Kalenik
Reviewed-by: Tom Lane, Alexander Korotkov
Backpatch-through: 10

Branch
------
REL_11_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/0d554775bd040e8edff66a57289b3bd56f64c2f2

Modified Files
--------------
src/backend/executor/nodeIndexscan.c | 6 +++++-
src/test/regress/expected/create_index.out | 27 +++++++++++++++++++++++++++
src/test/regress/sql/create_index.sql | 4 ++++
3 files changed, 36 insertions(+), 1 deletion(-)

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