Re: On-disk bitmap index implementation

Gavin Sherry wrote:
> o Improving VACUUM support -- currently, VACUUM FULL means REINDEX for
> bitmaps. Heikki Linnakangas offered to work on this. Heikki, are you
> still interested?

BTW vacuuming seems quite broken as it is:

hlinnaka(at)heikkilaptop:~/pgsql.bitmap$ ~/pgsql.bitmap/bin/psql -a
postgres < vacuumtest.sql
drop table if exists test;
DROP TABLE
create table test (key int);
CREATE TABLE
create index test_bm on test using bitmap (key);
CREATE INDEX
insert into test values (1);
INSERT 0 1
delete from test;
DELETE 1
vacuum test;
VACUUM
insert into test values (2);
INSERT 0 1
select * from test where key = 1;
key
-----
2
(1 row)

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