pgsql: Fix memory leak in ARRAY(SELECT ...) subqueries. - Mailing list pgsql-committers

From Tom Lane
Subject pgsql: Fix memory leak in ARRAY(SELECT ...) subqueries.
Date
Msg-id E1Shoup-0000WV-Vh@gemulon.postgresql.org
Whole thread Raw
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Fix memory leak in ARRAY(SELECT ...) subqueries.

Repeated execution of an uncorrelated ARRAY_SUBLINK sub-select (which
I think can only happen if the sub-select is embedded in a larger,
correlated subquery) would leak memory for the duration of the query,
due to not reclaiming the array generated in the previous execution.
Per bug #6698 from Armando Miraglia.  Diagnosis and fix idea by Heikki,
patch itself by me.

This has been like this all along, so back-patch to all supported versions.

Branch
------
REL8_3_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/b02cd9c727636395621f3bb98a8a3604bc0576cf

Modified Files
--------------
src/backend/executor/nodeSubplan.c |   18 +++++++++++++-----
src/include/nodes/execnodes.h      |    1 +
2 files changed, 14 insertions(+), 5 deletions(-)


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