Re: [PATCH]-hash index improving

From: Simon Riggs <simon(at)2ndquadrant(dot)com>
To: "Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>
Cc: Xiao Meng <mx(dot)cogito(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org, Kenneth Marshall <ktm(at)rice(dot)edu>
Subject: Re: [PATCH]-hash index improving
Date: 2008-07-17 23:09:42
Message-ID: 1216336182.19656.689.camel@ebony.2ndQuadrant
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On Thu, 2008-07-17 at 16:24 -0400, Jonah H. Harris wrote:
> I'm not really seeing any performance improvements over b-tree.

I'd like to see a theoretical analysis on the benefit case before we
spend too many teraflops on investigation.

In which cases do we expect that hash indexes will beat btrees?

--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support

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