Re: [SQL] combination of function to simple query makes query slow

2005-10-04 Thread jan aerts (RI)
? Thanks, jan. -Original Message- From: Jaime Casanova [mailto:[EMAIL PROTECTED] Sent: 03 October 2005 20:22 To: jan aerts (RI) Cc: pgsql-sql@postgresql.org Subject: Re: [SQL] combination of function to simple query makes query slow On 10/3/05, jan aerts (RI) [EMAIL PROTECTED] wrote

Re: [SQL] combination of function to simple query makes query slow

2005-10-04 Thread Tom Lane
jan aerts (RI) [EMAIL PROTECTED] writes: My Postgres version is 7.3.4 (on a central server, so I can't upgrade if that would be one of the suggestions...) 7.3.4 has multiple known data-loss bugs and security issues. If you're dealing with someone who won't upgrade it, find someone else to deal

Re: [SQL] combination of function to simple query makes query slow

2005-10-03 Thread jan aerts (RI)
aerts (RI) Sent: 30 September 2005 17:02 To: pgsql-sql@postgresql.org Subject: [SQL] combination of function to simple query makes query slow Hi, I'm having some problems in combining a function within a standard query. I basically have two tables (see between hashes below

Re: [SQL] combination of function to simple query makes query slow

2005-10-03 Thread Jaime Casanova
On 10/3/05, jan aerts (RI) [EMAIL PROTECTED] wrote: Some more information: An EXPLAIN of the following query my_db= explain select m1.object1_id, m1.object2_id, m2.object1_id, m2.object2_id my_db- from c_mappings m1, c_mappings m2 my_db- where m1.object1_id = 16575564 my_db- and

[SQL] combination of function to simple query makes query slow

2005-09-30 Thread jan aerts (RI)
Hi, I'm having some problems in combining a function within a standard query. I basically have two tables (see between hashes below): * alias_table: objects can have different names (e.g. name1 is an alias of name2, and name3 is an alias of name4) * mapping_table: shows objects that 'lead to'

Re: [SQL] combination of function to simple query makes query slow

2005-09-30 Thread Jaime Casanova
On 9/30/05, jan aerts (RI) [EMAIL PROTECTED] wrote: Hi, I'm having some problems in combining a function within a standard query. I basically have two tables (see between hashes below): * alias_table: objects can have different names (e.g. name1 is an alias of name2, and name3 is an alias