Re: Bitmap index thoughts

From: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
To: Gavin Sherry <swm(at)alcove(dot)com(dot)au>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Bitmap index thoughts
Date: 2007-02-08 15:48:54
Message-ID: 45CB4666.6090404@enterprisedb.com
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Gavin Sherry wrote:
> I will update the code tomorrow. The focus will be cleaning up the
> executor modifications. Please look else where for now.

I'm getting a segfault with this test script:

--------
CREATE TABLE bmtest (i int);

INSERT INTO bmtest SELECT 1 FROM generate_series(1,100000) a;
INSERT INTO bmtest SELECT 10 FROM generate_series(1,100) a;
DELETE FROM bmtest WHERE i = 1;
VACUUM bmtest;

CREATE INDEX i_bmtest ON bmtest USING bitmap (i);

INSERT INTO bmtest SELECT 10 FROM generate_series(1,100000) a;
--------

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com

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