Re: [PERFORM] Performance regression from 8.3.7 to 9.0.3

2011-03-14 Thread Tom Lane
Claudio Freire writes: > CREATE OR REPLACE VIEW member_all_tags_v AS > SELECT member_tags.member_id, member_tags.last_modification_date, > member_tags.polarity, member_tags.tag_id, 'mr' AS source >FROM member_tags > UNION ALL > SELECT member_profile_tags.member_id, >

Re: [PERFORM] Performance regression from 8.3.7 to 9.0.3

2011-03-14 Thread Merlin Moncure
On Mon, Mar 14, 2011 at 12:46 PM, Claudio Freire wrote: > On Mon, Mar 14, 2011 at 2:34 PM, Merlin Moncure wrote: >> changes to: >> >> SELECT member_statistics.member_id >>         FROM member_statistics >>         WHERE EXISTS >>         ( >>           SELECT mat1.tag_id >>           FROM member_

Re: [PERFORM] Performance regression from 8.3.7 to 9.0.3

2011-03-14 Thread Merlin Moncure
On Mon, Mar 14, 2011 at 10:54 AM, Claudio Freire wrote: > Nothing? > > No ideas? > > Did I forget to include some useful bit? > > On Fri, Mar 4, 2011 at 8:22 PM, Claudio Freire wrote: >> Hello, first post to this list. >> >> I have this query that ran in milliseconds in postgres 8.3.7 (usually 50

Re: [PERFORM] Performance regression from 8.3.7 to 9.0.3

2011-03-14 Thread Claudio Freire
Nothing? No ideas? Did I forget to include some useful bit? On Fri, Mar 4, 2011 at 8:22 PM, Claudio Freire wrote: > Hello, first post to this list. > > I have this query that ran in milliseconds in postgres 8.3.7 (usually 50, > 100ms), and now it takes a full 10 minutes to complete. > > I track