Re: what compression is used in on disk bitmap index implementation

From: Jim Nasby <decibel(at)decibel(dot)org>
To: sangeetha k(dot)s <sangeethakss(at)gmail(dot)com>
Cc: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Re: what compression is used in on disk bitmap index implementation
Date: 2007-02-22 22:51:25
Message-ID: 8771F0A2-B836-4C8E-B6BE-29340670F840@decibel.org
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On Feb 21, 2007, at 11:47 PM, sangeetha k.s wrote:
> i want to know
> 1.what compression technique used in on disk implementation
> of bitmap index.

Use the source, luke.

You should also take a look at the discussions on the mailing lists
surrounding it's development. I know early stuff was done on the
bizgres list, while later stuff is on pgsql-hackers. I'm pretty sure
there's discussion of the compression in the -hackers archives.

> 2.if we want add a new thing to the development how we can
> test that with the database

Huh? I don't know what you're asking here...
--
Jim Nasby jim(at)nasby(dot)net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)

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