Обсуждение: 8.1.5 release note

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 out which one is related to the item.

Any idea?
--
Tatsuo Ishii
SRA OSS, Inc. Japan

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 index scans, but
> I cannot figure out which one is related to the item.

Sorry for the delay. I don't know the answer.  The commit messages are
the only way.

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