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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 09:14:23 -0700 |
| commit | fd734f387d8780d9989d750942d026167de8cf3c (patch) | |
| tree | 07ec4db85bd5c2af6fc4252cb9e1a4549fe8c1fc /src/backend/access/gist/gistvalidate.c | |
| parent | f1af75c5f2516ec5b20cfe4b3a474071a318ae1e (diff) | |
| download | postgresql-fd734f387d8780d9989d750942d026167de8cf3c.tar.gz postgresql-fd734f387d8780d9989d750942d026167de8cf3c.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/access/gist/gistvalidate.c')
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