[PERFORM] Explicit joins

2011-05-04 Thread Rishabh Kumar Jain
I referred chapter 14.3 of postgres document version 9.0. explicit joins help the planner in planninng & thus improve performance. On what relations are explicit joins to be added?? I am getting data from 10 tables in a view. I don't know on which pair of tables I have to add explicit joins to im

Re: [PERFORM] Order of tables

2011-05-03 Thread Rishabh Kumar Jain
Heikki Linnakangas-3 wrote: > > On 28.04.2011 12:20, Rishabh Kumar Jain wrote: >> How the tables must be ordered in the list of tables in from statement? > > There is no difference in performance, if that's what you mean. (If not, > then pgsql-novice or pgsql-sql mai

Re: [PERFORM] Order of tables

2011-05-03 Thread Rishabh Kumar Jain
Robert Klemme-2 wrote: > > On Thu, Apr 28, 2011 at 11:20 AM, Rishabh Kumar Jain > <rishabh.w...@yahoo.com > > wrote: > >> How the tables must be ordered in the list of tables in from statement? >> > > To achieve what? Generally there is no requirement

Re: [PERFORM] Order of tables

2011-05-03 Thread Rishabh Kumar Jain
Robert Klemme-2 wrote: > > On Thu, Apr 28, 2011 at 11:20 AM, Rishabh Kumar Jain > <rishabh.w...@yahoo.com > > wrote: > >> How the tables must be ordered in the list of tables in from statement? >> > > To achieve what? Generally there is no requirement

Re: [PERFORM] Order of tables

2011-05-03 Thread Rishabh Kumar Jain
Thanks for previous reply my friend. In what manner are explicit joins added to improve performence? Are there some rules for it? -- View this message in context: http://postgresql.1045698.n5.nabble.com/Order-of-tables-tp4346077p4369082.html Sent from the PostgreSQL - performance mailing list arc

Re: [PERFORM] Order of tables

2011-04-29 Thread Rishabh Kumar Jain
On what relations are explicit joins added? I don't know when to add explicit joins.-- View this message in context: http://postgresql.1045698.n5.nabble.com/Order-of-tables-tp4346077p4358465.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-perform

[PERFORM] Order of tables

2011-04-28 Thread Rishabh Kumar Jain
How the tables must be ordered in the list of tables in from statement?