Extension of Thick Indexes

From: Amit Gupta <amit(dot)pc(dot)gupta(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Cc: gokul007(at)gmail(dot)com
Subject: Extension of Thick Indexes
Date: 2009-01-22 09:16:13
Message-ID: 8d79a95c0901220116v7f1370f7ra4dbb1179215f639@mail.gmail.com
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Hi,

We are extending Gokul's Thick index functionality (
http://archives.postgresql.org/pgsql-patches/2008-01/msg00092.php) on 8.4
code base to
- fix existing defects
- Extend thick index usage for group by, count, nested queries, and
"delete/update with join" queries.
- Improve cost estimates for using thick indexes, and
- Support OR condition queries using thick indexes (which involves
computation of bitmap-or)

Details of the above features can be seen at
http://aurora.regenstrief.org/postgresql/report/6

Please let me know if you have any comments or suggestions.

Thanks,
Amit
Persistent Systems

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