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pgsql: doc: PG 13 relnotes: hash_mem_multiplier can restore old behav.

From:	Bruce Momjian <bruce(at)momjian(dot)us>
To:	pgsql-committers(at)lists(dot)postgresql(dot)org
Subject:	pgsql: doc: PG 13 relnotes: hash_mem_multiplier can restore old behav.
Date:	2020-08-03 21:01:54
Message-ID:	E1k2hak-0002eG-8W@gemulon.postgresql.org
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doc: PG 13 relnotes: hash_mem_multiplier can restore old behav.

Document that hash_mem_multiplier can get query behavior closer to the
pre-PG 13 behavior of allowing hashing to use more memory.

Reported-by: Peter Geoghegan

Backpatch-through: 13 only

Branch
------
REL_13_STABLE

Modified Files
--------------
doc/src/sgml/release-13.sgml | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

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