pgsql: Fix memory leak in GIN index scans.

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Fix memory leak in GIN index scans.
Date: 2016-04-15 04:02:45
Message-ID: E1aquxx-0007Kj-2f@gemulon.postgresql.org
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Fix memory leak in GIN index scans.

The code had a query-lifespan memory leak when encountering GIN entries
that have posting lists (rather than posting trees, ie, there are a
relatively small number of heap tuples containing this index key value).
With a suitable data distribution this could add up to a lot of leakage.
Problem seems to have been introduced by commit 36a35c550, so back-patch
to 9.4.

Julien Rouhaud

Branch
------
REL9_5_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/edd57377f0db00a66d39029aa5239a96280887ef

Modified Files
--------------
src/backend/access/gin/ginget.c | 1 +
1 file changed, 1 insertion(+)

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