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doc: PG 13 relnotes: hash_mem_multiplier can restore old behav.
authorBruce Momjian
Mon, 3 Aug 2020 21:01:42 +0000 (17:01 -0400)
committerBruce Momjian
Mon, 3 Aug 2020 21:01:42 +0000 (17:01 -0400)
commite7a6cd5dcf24c6d4b04d036a4837c7af154c4b49
tree984fe95764954201713793cf13c8eb3bb0e6aeaatree
parent72ca61101ad4076941f175b50cc86e6372023034commit | diff
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
Discussion: https://postgr.es/m/CAH2-Wzn3kwQm_pe6g2=ki+P7+ZRqH5GvFGn6SWfv_j7UUgcLdQ@mail.gmail.com

Backpatch-through: 13 only
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