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| author | Jeff Davis <jdavis@postgresql.org> | 2020-07-30 08:44:58 -0700 |
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| committer | Jeff Davis <jdavis@postgresql.org> | 2020-07-30 09:17:00 -0700 |
| commit | 07cbcdd00c2465a844513f14b7a96232013d3129 (patch) | |
| tree | 38b2aa58031abed2e2141e0f8ab97e649536ffda /src/backend/executor/nodeSort.c | |
| parent | e710f3b8e7da43de2ad8113ce7c7933928092656 (diff) | |
| download | postgresql-07cbcdd00c2465a844513f14b7a96232013d3129.tar.gz postgresql-07cbcdd00c2465a844513f14b7a96232013d3129.zip | |
Use pg_bitutils for HyperLogLog.
Using pg_leftmost_one_post32() yields substantial performance benefits.
Backpatching to version 13 because HLL is used for HashAgg
improvements in 9878b643, which was also backpatched to 13.
Reviewed-by: Peter Geoghegan
Discussion: https://postgr.es/m/CAH2-WzkGvDKVDo+0YvfvZ+1CE=iCi88DCOGFF3i1hTGGaxcKPw@mail.gmail.com
Backpatch-through: 13
Diffstat (limited to 'src/backend/executor/nodeSort.c')
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