Re: [HACKERS] 8.1.5 release note

2007-02-03 Thread Bruce Momjian
Tatsuo Ishii wrote: > As usual, following item in the 8.1.5 release note is pretty vague: > > * Efficiency improvements in hash tables and bitmap index scans(Tom) > > Especially I'm wondering what was actually improved in bitmap index > scans. I see several commit messages regarding bitmap i

[HACKERS] 8.1.5 release note

2006-12-12 Thread Tatsuo Ishii
As usual, following item in the 8.1.5 release note is pretty vague: * Efficiency improvements in hash tables and bitmap index scans(Tom) Especially I'm wondering what was actually improved in bitmap index scans. I see several commit messages regarding bitmap index scans, but I cannot figure