Re: [SQL] transaction in plpgsql

2002-06-27 Thread Nils Höglund
> how can i implement transactions inside my plpgsql functions I would guess that this is not possible since postgres don't support nested transactions(?). -- /Nils Höglund, Naqua KB E-mail: [EMAIL PROTECTED] Web:http://www.naqua.se/ Home Phone: +46 (0)18 30 09 19 C

Re: [SQL] graphical interface - admin

2002-06-27 Thread David BOURIAUD
Le Jeudi 27 Juin 2002 13:50, q u a d r a a écrit : > What's the best open source GUI for DB administration? (postgres) Why ? Mine of course ! Noway for this stupid answer ! Well, I would say that you have at least two choices amongst those I know : phpPgAdmin, which works as it's name says with p

Re: [SQL] transaction in plpgsql

2002-06-27 Thread Josh Berkus
Joe, > how can i implement transactions inside my plpgsql functions You can't. Each PL/pgSQL function is automatically treated as a single transaction by Postgres. As such, the entire function either succeeds or fails. To manage a transaction *inside* the PL/pgSQL function, Postgres would h

[SQL] transaction in plpgsql

2002-06-27 Thread Joseph Syjuco
how can i implement transactions inside my plpgsql functions ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster

Re: [SQL] 2 Selects 1 is faster, why?

2002-06-27 Thread Tom Lane
Keith Gray <[EMAIL PROTECTED]> writes: > ...but is it true that if you place the filter clause first, > the join will not have to complete the whole table? PG's planner does not pay attention to the ordering of WHERE clauses; it will do what it thinks best with them in any case.

[SQL] time difference

2002-06-27 Thread q u a d r a
I have a query that returns ?column? - 6 days 01:56:14 (1 row) How can I get it as total number of hours? Instead of days and hours, I need hours only (all in all, so 24hours * 6 days + 01:56:14) Can you help me please? Thanks ---(end of bro

Re: [SQL] Slow SELECT -> Growing Database

2002-06-27 Thread Tatsuo Ishii
> The problem isn't in the select. > > I realize that my database is growing and growing. > > I've two tables that have, lets say, 120.000 records each, and: > - delete about 30.000 records a day from each table > - insert about 30.000 records a day on each table > - update each record at least

Re: [SQL] 2 Selects 1 is faster, why?

2002-06-27 Thread Keith Gray
Masaru Sugawara wrote: > > You are right. And this type of optimising are not yet implemented. > Tom said it in the prior discussions. > ...but is it true that if you place the filter clause first, the join will not have to complete the whole table? eg. SELECT item.description, stock.avai

[SQL] Unsubscription -- How?

2002-06-27 Thread David Secret
Can someone please tell me how to unsubscribe from all the pgsql lists? ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://archives.postgresql.org

[SQL] to_char() and order-by

2002-06-27 Thread Jeff Boes
Perhaps this was covered in the 7.2.x release notes, but it's mystifying us: select to_char(time_link,'999.99') from stat_fetch where time_link is not null order by 1 desc limit 10; (time_link is a double-precision column.) Under 7.1.3, this returns results like: to_char - 9.99

Re: [SQL] Slow SELECT -> Growing Database

2002-06-27 Thread Marc Spitzer
On Thu, Jun 27, 2002 at 04:24:04PM +0100, Marcos Garcia wrote: > On Mon, 2002-06-24 at 22:43, Stephan Szabo wrote: > > On 24 Jun 2002, Marcos Garcia wrote: > > > > Hmm, that should only happen if you're doing alot of updates or deletes > > I would guess (updates would cause it to slow down as wel

Re: [SQL] graphical interface - admin

2002-06-27 Thread Ron Peterson
On Thu, Jun 27, 2002 at 07:50:09PM +0800, q u a d r a wrote: > > What's the best open source GUI for DB administration? (postgres) Emacs. ;) -- Ron Peterson -o) 87 Taylor Street /\\ Granby, MA 01033 _\_v https://www.yellowbank.com/ -

Re: [SQL] Slow SELECT -> Growing Database

2002-06-27 Thread Stephan Szabo
On 27 Jun 2002, Marcos Garcia wrote: > On Mon, 2002-06-24 at 22:43, Stephan Szabo wrote: > > On 24 Jun 2002, Marcos Garcia wrote: > > > > Hmm, that should only happen if you're doing alot of updates or deletes > > I would guess (updates would cause it to slow down as well since it's > > similar t

Re: [SQL] Calculating with sql

2002-06-27 Thread Masaru Sugawara
On Wed, 26 Jun 2002 22:18:07 +0200 Dennis Kaarsemaker <[EMAIL PROTECTED]> wrote: > From a copy of the CDDB-database i want to select the artist & album that > has on average the longest tracks. > > But in the tracks table there is no such field as length, so i have to > calculate it. But when i

Re: [SQL] Slow SELECT -> Growing Database

2002-06-27 Thread Marcos Garcia
On Mon, 2002-06-24 at 22:43, Stephan Szabo wrote: > On 24 Jun 2002, Marcos Garcia wrote: > > Hmm, that should only happen if you're doing alot of updates or deletes > I would guess (updates would cause it to slow down as well since it's > similar to a delete and insert under MVCC). And frequent

Re: [SQL] CHECK clause doesn't work with CASE clause

2002-06-27 Thread Richard Huxton
On Thursday 27 Jun 2002 10:52 am, Jörg Holetschek wrote: > Hi folks, > > I have a problem with a CHECK clause that doesn't seem to work properly. > WHEN ((focus <> NULL) AND (epilepsy_class = 'f')) THEN > WHEN ((focus <> NULL) AND (epilepsy_class IN ('g',

Re: [SQL] Possibility of Index-Only access in PostgreSQL?

2002-06-27 Thread Gunther Schadow
Tom Lane wrote: > It won't happen. See the many, many prior discussions of this point in > the archives. Hmm, I searched the archives both in my local mailbox and on Google, could you give me some pointer to a relevant thread? I certainly want to learn from past discussions. So, it's that MVC

Re: [SQL] 2 Selects 1 is faster, why?

2002-06-27 Thread Masaru Sugawara
On Wed, 26 Jun 2002 17:34:47 +0200 Alvar Freude <[EMAIL PROTECTED]> wrote: > Hi, > > -- Eric <[EMAIL PROTECTED]> wrote: > > > If I perform the following 2 selects, the first one is EXTREMELY slow > > where the 2nd one is very fast. > > [...] > > > Why would 2 be so much faster? I have ran

Re: [SQL] CHECK clause doesn't work with CASE clause

2002-06-27 Thread Richard Poole
On Thu, Jun 27, 2002 at 11:52:54AM +0200, J?rg Holetschek wrote: > Hi folks, > > I have a problem with a CHECK clause that doesn't seem to work properly. The > CASE > WHEN ((focus <> NULL) AND (epilepsy_class = 'f')) THEN > TRUE > WHEN

Re: [SQL] CHECK clause doesn't work with CASE clause

2002-06-27 Thread Tom Lane
"Jörg Holetschek" <[EMAIL PROTECTED]> writes: > CASE > WHEN ((focus <> NULL) AND (epilepsy_class = 'f')) THEN > TRUE Try "focus IS NOT NULL". regards, tom lane ---(end of broadcast)-

[SQL] CHECK clause doesn't work with CASE clause

2002-06-27 Thread Jörg Holetschek
Hi folks, I have a problem with a CHECK clause that doesn't seem to work properly. The CREATE TABLE statement looks like this: CREATE TABLE epilepsy_information ( [...] epilepsy_class Char CHECK (epilepsy_class IN ('f', 'g', 'n')), focusInteg

[SQL] Calculating with sql

2002-06-27 Thread Dennis Kaarsemaker
I'm having trouble figuring out how to select something. This is the problem: >From a copy of the CDDB-database i want to select the artist & album that has on average the longest tracks. But in the tracks table there is no such field as length, so i have to calculate it. But when i try to do so

[SQL] graphical interface - admin

2002-06-27 Thread q u a d r a
What's the best open source GUI for DB administration? (postgres) ---(end of broadcast)--- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html