]> granicus.if.org Git - postgresql/commit
projects / postgresql / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 1f01d59) | patch
Improve hash method for bitmapsets: some examination of actual outputs
authorTom Lane <tgl@sss.pgh.pa.us>
Wed, 15 Jun 2005 16:24:07 +0000 (16:24 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Wed, 15 Jun 2005 16:24:07 +0000 (16:24 +0000)
commite5a11a8879c653d171497f8adec68f8997a4c4cf
tree487c83b8695e69f895a13423ee6baafd1343b080tree | snapshot
parent1f01d59e06b8865838ceb06f34e9dc66c20ed5a1commit | diff
Improve hash method for bitmapsets: some examination of actual outputs
shows that adding a circular shift between words greatly improves the
distribution of hash outputs.
src/backend/nodes/bitmapset.c diff | blob | history
Unnamed repository; edit this file 'description' to name the repository.