Re: hash index improving v3

"Jonah H. Harris" <[email protected]> Thu, 4 Sep 2008 00:10:06 -0400
Newsgroups gmane.comp.db.postgresql.devel.patches
Message-ID <[email protected]>
On Wed, Sep 3, 2008 at 10:06 PM, Simon Riggs <[email protected]> wrote:
>> It seems hash index is a little better on index creation and
>> selection.
>> But maybe  it's in the range of noise, I'm not sure.
>> I'd like to try it with a bigger dataset (e.g. table with 10GB) but
>> there is not enough space in my computer.
>> Anyone interest can make a test on a bigger data set.

I tried it earlier on a 500M row table and found a few bugs.  In
particular, it doesn't seem like recheck is happening and the
performance/sizing is a bit *interesting*.  I'll post stats tomorrow
when I'm in the office.

-- 
Jonah H. Harris, Senior DBA
myYearbook.com

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