Re: [PATCH]-hash index improving

From: Kenneth Marshall <ktm(at)rice(dot)edu>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>, Xiao Meng <mx(dot)cogito(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [PATCH]-hash index improving
Date: 2008-07-18 20:58:00
Message-ID: 20080718205800.GX337@it.is.rice.edu
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FYI,

I just patched the fill-factor calculation and re-ran my test.
The index size dropped from 513M to 43M which is the same disk
footprint as the corresponding btree index.

Have a nice weekend.
Ken

On Fri, Jul 18, 2008 at 12:23:14PM -0500, Kenneth Marshall wrote:
> I just ran my original 16M word test case against the patched
> version, and like Tom noted below, the tuples per bucket
> calculation is wrong which results in identical index sizes
> for both the original version and the hash-value-only version.
>

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