Re: [PERFORM] Extreme slow select query 8.2.4

2007-08-06 Thread Henrik Zagerholm
6 aug 2007 kl. 21:47 skrev Heikki Linnakangas: Henrik Zagerholm wrote: I know the query retrieves way more which is really necessary to show to the user so I would gladly come up with a way to limit the query so the GUI doesn't hang for several minutes if a user does a bad search. The prob

Re: [PERFORM] Extreme slow select query 8.2.4

2007-08-06 Thread Heikki Linnakangas
Henrik Zagerholm wrote: > I know the query retrieves way more which is really necessary to show to > the user so I would gladly come up with a way to limit the query so the > GUI doesn't hang for several minutes if a user does a bad search. > The problem is that I don't know a good way of limit the

Re: [PERFORM] Extreme slow select query 8.2.4

2007-08-06 Thread Henrik Zagerholm
6 aug 2007 kl. 16:58 skrev Tom Lane: Henrik Zagerholm <[EMAIL PROTECTED]> writes: ... FROM tbl_file_structure JOIN tbl_file ON pk_file_id = fk_file_id JOIN tbl_structure ON pk_structure_id = fk_structure_id JOIN tbl_archive ON pk_archive_id = fk_archive_id

Re: [PERFORM] Extreme slow select query 8.2.4

2007-08-06 Thread Tom Lane
Henrik Zagerholm <[EMAIL PROTECTED]> writes: > ... FROM tbl_file_structure > JOIN tbl_file ON pk_file_id = fk_file_id > JOIN tbl_structure ON pk_structure_id = fk_structure_id > JOIN tbl_archive ON pk_archive_id = fk_archive_id > JOIN tbl_share ON pk_shar

[PERFORM] Extreme slow select query 8.2.4

2007-08-06 Thread Henrik Zagerholm
Hello list, We have a database keeping track of old files on different computers. We have now added some search functionality to this system. The problem is that on some searches it is really really slow and the problem lies in the planner are using seq scans on tables with over 20 million ro