Re: [GENERAL] Constraint exclusion issue

2010-01-17 Thread Emanuel Calvo Franco
2010/1/16 Mathieu De Zutter math...@dezutter.org: On Sat, Jan 16, 2010 at 7:26 PM, Scott Marlowe scott.marl...@gmail.com wrote: On Sat, Jan 16, 2010 at 11:02 AM, Mathieu De Zutter math...@dezutter.org wrote: shs-dev=# explain select * from parent where (c,n) = '(b,0)'; ERROR:  input of

[GENERAL] PGCon 2010

2010-01-17 Thread Dan Langille
Hello folks, PGCon 2010 will be held 20-21 May 2010, in Ottawa at the University of Ottawa. It will be preceded by two days of tutorials on 18-19 May 2010. We are now accepting proposals for talks. If you are doing something interesting with PostgreSQL, please submit a proposal. You might be

[GENERAL] ranking how similar are tsvectors was: OR tsquery

2010-01-17 Thread Ivan Sergio Borgonovo
My initial request was about a way to build up a tsquery that was made similar to what plainto_tsquery does but using | inspite of as a glue. But at the end of the day I'd like to find similar tsvectors and rank them. I've a table containing several fields that contribute to build up a weighted

[GENERAL] Data Generators

2010-01-17 Thread Jamie Kahgee
I'm looking for a data generator. Free would be nice, if possible. Has anyone had good luck w/ anything? maybe point me in a good direction :) Thanks, Jamie K.

Re: [GENERAL] ranking how similar are tsvectors was: OR tsquery

2010-01-17 Thread Oleg Bartunov
Ivan, You can write function to get lexemes from tsvector: CREATE OR REPLACE FUNCTION ts_stat(tsvector, weights text, OUT word text, OUT ndoc integer, OUT nentry integer) RETURNS SETOF record AS $$ SELECT ts_stat('SELECT ' || quote_literal( $1::text ) || '::tsvector', quote_literal(

Re: [GENERAL] Data Generators

2010-01-17 Thread Andy Colson
On 01/17/2010 09:26 AM, Jamie Kahgee wrote: I'm looking for a data generator. Free would be nice, if possible. Has anyone had good luck w/ anything? maybe point me in a good direction :) Thanks, Jamie K. I use perl. And its free. It has no limitations on what it can generate.

Re: [GENERAL] ranking how similar are tsvectors was: OR tsquery

2010-01-17 Thread Ivan Sergio Borgonovo
On Sun, 17 Jan 2010 20:19:59 +0300 (MSK) Oleg Bartunov o...@sai.msu.su wrote: Ivan, You can write function to get lexemes from tsvector: CREATE OR REPLACE FUNCTION ts_stat(tsvector, weights text, OUT word text, OUT ndoc integer, OUT nentry integer) RETURNS SETOF record AS $$ SELECT

Re: [GENERAL] Constraint exclusion issue

2010-01-17 Thread Jeff Davis
On Sat, 2010-01-16 at 19:02 +0100, Mathieu De Zutter wrote: Hi, I'm trying to make constraint exclusion work correctly in a query with only one parameter, but I have some issues. Please have a look at the scenario below and tell me how I can improve it. ... shs-dev=# explain select *

Re: [GENERAL] Constraint exclusion issue

2010-01-17 Thread Mathieu De Zutter
On Sun, Jan 17, 2010 at 8:06 PM, Jeff Davis pg...@j-davis.com wrote: On Sat, 2010-01-16 at 19:02 +0100, Mathieu De Zutter wrote: Hi, I'm trying to make constraint exclusion work correctly in a query with only one parameter, but I have some issues. Please have a look at the scenario below and

Re: [GENERAL] Constraint exclusion issue

2010-01-17 Thread Jeff Davis
On Sun, 2010-01-17 at 21:48 +0100, Mathieu De Zutter wrote: Can you explain this then: OK: select * from parent where (c,n) = ('b',0); NOT OK: select * from parent where (c,n)::y = ('b',0)::y; Once you pass (c,n) into the cast, you get out something new that's neither c nor n. It's as if you

Re: [GENERAL] Data Generators

2010-01-17 Thread Thomas Kellerer
Jamie Kahgee, 17.01.2010 16:26: I'm looking for a data generator. Free would be nice, if possible. Has anyone had good luck w/ anything? maybe point me in a good direction :) Thanks, Jamie K. Have a look at Benerator I have been told, that it's quite good (I haven't used it myself though)

[GENERAL] SET AUTOCOMMIT OFF

2010-01-17 Thread A.Bhattacharya
Hi All, I am new to Postgresql and I need to turn off the AUTO COMMIT in PostgreSQL 8.3.Can anyone guide me how to do it as SET AUTOCOMMIT = off; does not seem to be supported any more in PostgreSQL 8.3. Many thanks for help!

[GENERAL] postgres external table

2010-01-17 Thread Amy Smith
all is there a external table create method ( similar to oracle external table ) ? where to find the information ? thanks Amy

Re: [GENERAL] SET AUTOCOMMIT OFF

2010-01-17 Thread Andreas Kretschmer
a.bhattacha...@sungard.com a.bhattacha...@sungard.com wrote: Hi All, I am new to Postgresql and I need to turn off the AUTO COMMIT in PostgreSQL 8.3.Can anyone guide me how to do it as SET AUTOCOMMIT = off; does not seem to be supported any more in PostgreSQL 8.3. Do you using psql as

Re: [GENERAL] SET AUTOCOMMIT OFF

2010-01-17 Thread Craig Ringer
a.bhattacha...@sungard.com wrote: Hi All, I am new to Postgresql and I need to turn off the AUTO COMMIT in PostgreSQL 8.3.Can anyone guide me how to do it as SET AUTOCOMMIT = off; does not seem to be supported any more in PostgreSQL 8.3. Just explicitly begin a transaction, like you do

Re: [GENERAL] postgres external table

2010-01-17 Thread Craig Ringer
Amy Smith wrote: all is there a external table create method ( similar to oracle external table ) ? where to find the information ? For those non-Oracle users among us, what's an external table? What are you trying to achieve? Random guess: you might be looking for tablespaces. -- Craig

Re: [GENERAL] Collate order on Mac OS X, text with diacritics in UTF-8

2010-01-17 Thread Martijn van Oosterhout
On Sat, Jan 16, 2010 at 09:10:53PM +, Greg Stark wrote: Switching to ICU means trading our current inconsistency from platform to platform for a different inconsistency which would be better in some cases and worse in others. Or, you can have the cake and eat it too. That is, aim for the

Re: [GENERAL] postgres external table

2010-01-17 Thread David Fetter
On Sun, Jan 17, 2010 at 07:27:34PM -0800, Amy Smith wrote: all is there a external table create method ( similar to oracle external table ) ? where to find the information ? There is a project on pgfoundry which has had some activity lately that's similar. You might also try DBI-Link.

Re: [GENERAL] vacuum issues under load?

2010-01-17 Thread Martijn van Oosterhout
On Fri, Jan 15, 2010 at 08:41:38AM -0700, Scott Marlowe wrote: With slony 2.0.3 or so, I had occasional complete lockups of my database that I didn't have time to troubleshoot as it was a live cluster and I had to restart slony and the databases to get them back up and running. With slony