On Wed, Nov 3, 2010 at 6:30 AM, Tom Lane wrote:
> Yaocl writes:
>> SELECT t_a.id FROM t_a
>> WHERE EXISTS ( SELECT t_b.id FROM t_b, t_c
>> WHERE t_b.id = t_a.id AND t_c.flag = 'f')
>
> I have some hopes for fixing this in 9.1, but nothing is
Hi
Sorry, my previous post haven't shown in this list, so I repost this
one. I have a sql become very slow after upgrade to 8.4.5.
The table creation sql like this.
begin;
CREATE TABLE t_a (
id INT NOT NULL PRIMARY KEY
);
CREATE TABLE t_b (
id INT NOT NULL PRIMARY KEY
);
CREATE TA
