Hi,
we've got rather strange problem with updating and GiST indices.
Below is a test run:
drop table tst;
create table tst ( a int[], i int );
copy tst from stdin;
........
\.
create index tsti on tst using gist (a);
vacuum full analyze;
test=# update tst set i = i+10 where a && '{3,4}';
UPDATE 3267
test=# set enable_indexscan=off;
SET VARIABLE
test=# update tst set i = i+10 where a && '{3,4}';
UPDATE 4060
test=# select count(*) from tst where a && '{3,4}';
count
-------
4060
(1 row)
test=# select version();
version
---------------------------------------------------------------
PostgreSQL 7.2.1 on i686-pc-linux-gnu, compiled by GCC 2.95.3
(1 row)
enabling gist indices cause some rows doesn't updating !
Please find attached test sql script (need to install contrib/intarray module)
Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: [EMAIL PROTECTED], http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83
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