Re: [GENERAL] [pgsql-advocacy] PostgreSQL professionals group at LinkedIn.com

2008-02-02 Thread Gevik Babakhani
> > > > Is there an existing Postgres group? > > Yes. Humm.. It never hurts to be more popular on the net. Regards, Gevik Babakhani PostgreSQL NL http://www.postgresql.nl TrueSoftware BV http://www.truesoftware.nl --

[GENERAL] need help optimizing query

2008-02-02 Thread rihad
Hi all, The situation: there are users in one table, and their access statistics in the other. Now I want to find users whose last access time was more than one month ago. As I've only had to write quite simple queries involving no sub-selects so far, I'd like to ask your opinion if this one scal

Re: [GENERAL] need help optimizing query

2008-02-02 Thread Olexandr Melnyk
Here's one without a subquery, so may be master: select u.login, s.stop_time from users as a inner join stats as s on s.user_id = u.user_id where status = '3' and next_plan_id is null and stop_time < now() - interval '1 month' group by u.user_id, u.login, s.stop_time orde

[GENERAL] Log query statistics

2008-02-02 Thread Rubén Rubio
Hi, Im trying to disable query statistics from log, and I am unable to do it. Cannot find the correct option. I have been cheking google, postgres documentation, i didn't found how to do it so ... I am writting here: I have my logs full of this info: [...] DETAIL: ! system usage stats:

[GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread vladimir konrad
Hello, I think that I understand basic relational theory but then I had an idea. What I would like to know if this is sometimes done or that I am possibly mad... Also, I do not know the terminology for this kind of thing so I do not know where and what to look for. Basically, instead of adding f

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread Thomas Pundt
Hi, vladimir konrad wrote: I think that I understand basic relational theory but then I had an idea. What I would like to know if this is sometimes done or that I am possibly mad... Also, I do not know the terminology for this kind of thing so I do not know where and what to look for. Basically

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread vladimir konrad
> Yes, this is known as eg. Entity-Attribute-Value model (cf. > wikipedia). Thank you for the pointer and term. This will get me started. > IMO most times its disadvantages (it can be very hard to write > performant queries compared to the traditional row based model) weigh > higher than you gain

Re: [GENERAL] Very long execution time of "select nextval('..');"

2008-02-02 Thread mljv
Hi Greg, hi Tom, Am Sonntag, 27. Januar 2008 22:44 schrieb Tom Lane: > [EMAIL PROTECTED] writes: > > ok, at the moment i got some traffic and my load is at 1.5. But now with > > logging the timestamp I have seen that the long durations are quite > > regular at intervals of 10 minutes. > > Well, th

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread Lewis Cunningham
--- vladimir konrad <[EMAIL PROTECTED]> wrote: > I think that I understand basic relational theory but then I had an > idea. > Basically, instead of adding field to a table every time there is a > need for it, have a table split in two: one holds identity (id) and > one holds the attributes (li

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread Bill Moran
vladimir konrad <[EMAIL PROTECTED]> wrote: > > Hello, > > I think that I understand basic relational theory but then I had an > idea. What I would like to know if this is sometimes done or that I am > possibly mad... Also, I do not know the terminology for this kind of > thing so I do not know whe

Re: [GENERAL] Performance problems with Postgresql/ZFS/Non-global zones on Solaris?

2008-02-02 Thread Robert Treat
On Thursday 31 January 2008 07:08, [EMAIL PROTECTED] wrote: > [Following up on my own message.] > > > Also, > > > let > > > > us > > > > know > > > > your > > > > wal > > > > tunning > > > > parameters > > > > like > > > > commit_delay, > > > > fsync. > > I haven't done any tuning as of yet. I'm ru

Re: [GENERAL] Log query statistics

2008-02-02 Thread Scott Marlowe
On Feb 2, 2008 5:51 AM, Rubén Rubio <[EMAIL PROTECTED]> wrote: > > Hi, > > Im trying to disable query statistics from log, and I am unable to do it. > Cannot find the correct option. I have been cheking google, postgres > documentation, i didn't found how to do it so ... I am writting here: > > I h

[GENERAL] Request for help with database of Kenyan election violence

2008-02-02 Thread Karl O. Pinc
Hello, The Kenya National Commission for Human Rights is investigating the violence in Kenya. This has led to an urgent request on Groklaw http://www.groklaw.net/article.php?story=20080202013451629 for assistance in setting up a database. I have suggested that a suite of PostgreSQL based tools

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread vladimir konrad
> Basically, you would be creating your own data dictionary (i.e. > system catalog) on top of the db data dictionary. The database > already comes with a way to easily add columns: ddl. I have seen > newbie database designers reinvent this method a hundred times. The > performance hits and compl

Re: [GENERAL] Oracle Analytical Functions

2008-02-02 Thread Rodrigo E. De León Plicet
On Jan 31, 2008 8:49 AM, Enrico Sirola <[EMAIL PROTECTED]> wrote: > I'd create a "previousTime" column and manage it using a trigger. > Anyway, it depends on the time-dependancy of the table > Then you can perform "temporal" in a much easier way. > You could be interested in taking a look at the fo

Re: [GENERAL] arrays of floating point numbers / linear algebra operations into the DB

2008-02-02 Thread Enrico Sirola
Hi Webb, Joe, Martijn Webb Sprague ha scritto: On Feb 1, 2008 2:31 AM, Enrico Sirola <[EMAIL PROTECTED]> wrote: Hello, I'd like to perform linear algebra operations on float4/8 arrays Having avoided a bunch of real work wondering about linear algebra and PG, did you consider the Gnu Scientifi

[GENERAL] first message: SELECT FROM

2008-02-02 Thread Aílsom F. Heringer
Hi, This is my first message, and I need some help. I have just installed Postgresql 8.2. (Windows). At pgAdmin III Query, when I send SELECT * FROM USUARIOS, I get all columns correctly. But when I try to get only one column, SELECT senha FROM USUARIOS, I get the error message: ERROR: column "se

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread David Fetter
On Sat, Feb 02, 2008 at 01:38:19PM +0100, Thomas Pundt wrote: > Hi, > > vladimir konrad wrote: >> I think that I understand basic relational theory but Clearly, you'll have to revisit that thought. > [example stripped] > > Yes, this is known as eg. Entity-Attribute-Value model (cf. > wikipedia).

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Bill Moran
On Sat, 2 Feb 2008 15:43:15 -0200 "Aílsom F. Heringer" <[EMAIL PROTECTED]> wrote: > Hi, > This is my first message, and I need some help. I have just installed > Postgresql 8.2. (Windows). > > At pgAdmin III Query, when I send SELECT * FROM USUARIOS, I get all > columns correctly. But when I try

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Raymond O'Donnell
On 02/02/2008 17:43, Aílsom F. Heringer wrote: At pgAdmin III Query, when I send SELECT * FROM USUARIOS, I get all columns correctly. But when I try to get only one column, SELECT senha FROM USUARIOS, I get the error message: ERROR: column "senha" does not exist SQL state: 42703 Character: 8

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Ragnar
On lau, 2008-02-02 at 15:43 -0200, Aílsom F. Heringer wrote: > At pgAdmin III Query, when I send SELECT * FROM USUARIOS, I get all > columns correctly. But when I try to get only one column, SELECT senha > FROM USUARIOS, I get the error message: > > ERROR: column "senha" does not exist > SQL stat

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Scott Marlowe
On Feb 2, 2008 11:43 AM, Aílsom F. Heringer <[EMAIL PROTECTED]> wrote: > Hi, > This is my first message, and I need some help. I have just installed > Postgresql 8.2. (Windows). > > At pgAdmin III Query, when I send SELECT * FROM USUARIOS, I get all > columns correctly. But when I try to get only o

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Aílsom F. Heringer
Bill, The collumn is defined as "Senha", and I am sending "SELECT Senha FROM Usuarios". Below, the table definition from SQL Pane: CREATE TABLE usuarios ( "CdUsuario" character(6) NOT NULL, "NmUsuario" character(15) NOT NULL, "DtCadastro" timestamp without time zone NOT NULL DEFAULT now(),

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Aílsom F. Heringer
Ok. That was the problem. Now SELECT "Senha" FROM USUARIOS is working fine. But, At an application using ODBC connection I will need to send "Senha" too ? Aílsom 2008/2/2, Ragnar <[EMAIL PROTECTED]>: > On lau, 2008-02-02 at 15:43 -0200, Aílsom F. Heringer wrote: > > > At pgAdmin III Query, when

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Raymond O'Donnell
On 02/02/2008 17:59, Aílsom F. Heringer wrote: The collumn is defined as "Senha", and I am sending "SELECT Senha FROM [] CREATE TABLE usuarios ( [] "Senha" character(10), [] There you go - you need to do select "Senha" Ray. --

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread Shane Ambler
Lewis Cunningham wrote: --- vladimir konrad <[EMAIL PROTECTED]> wrote: I think that I understand basic relational theory but then I had an idea. Basically, instead of adding field to a table every time there is a need for it, have a table split in two: one holds identity (id) and one holds t

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread vladimir konrad
> If you have some part of your app that needs to "select" the list of > columns in a table you should look at > http://www.postgresql.org/docs/8.2/interactive/catalogs.html > particularly pg_class and pg_attribute Thanks, this could come handy. Vlad ---(end of broadcast

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Alban Hertroys
On Feb 2, 2008, at 6:56 PM, Bill Moran wrote: preserved that. PostgreSQL is case-sensative, so try matching the column name exactly and putting "" around it. If that doesn't work, provide some That is just plain incorrect, PostgreSQL is *not* case sensitive. The real problem here (as Sc

Re: [GENERAL][UMN_MAPSERVER-USERS] query postgres AND oracle

2008-02-02 Thread John Smith
thanks. thought dbi-link could only connect across postgres databases, didn't realize it can connect postgres AND oracle. will look into it. jzs On 1/31/08, Chander Ganesan <[EMAIL PROTECTED]> wrote: > > John Smith wrote: > guys, > i got geometry in postgres, some other data in oracle. is it pos

Re: [GENERAL][UMN_MAPSERVER-USERS] query postgres AND oracle

2008-02-02 Thread Tom Lane
"John Smith" <[EMAIL PROTECTED]> writes: > thanks. thought dbi-link could only connect across postgres databases, > didn't realize it can connect postgres AND oracle. will look into it. No, you're confusing it with dblink, which is Postgres-specific. dbi-link relies on the Perl DBI layer, so it sh

Re: [GENERAL] arrays of floating point numbers / linear algebra operations into the DB

2008-02-02 Thread Webb Sprague
> I'm quite proud, this is my first C extension function ;-) > I'd gladly post the code if it's ok for the list users. It's more or > less 100 lines of code. This approach seems promising... I would definitely like to see it. > By the way, Webb: I took a look at GSL and it seems to me that, from

Re: [GENERAL] [OT] "advanced" database design (long)

2008-02-02 Thread Karsten Hilbert
David Fetter wrote: > The math beneath this is that query complexity goes up like O(E!A!V!) > for Entity, Attribute and Value. Makes sense. > The first price, though, and by far the biggest, is that it's > impossible to maintain any kind of data integrity in such a system, as > such constraints,

Re: [GENERAL] first message: SELECT FROM

2008-02-02 Thread Garry Saddington
On Saturday 02 February 2008 17:43, Aílsom F. Heringer wrote: > Hi, > This is my first message, and I need some help. I have just installed > Postgresql 8.2. (Windows). > > At pgAdmin III Query, when I send SELECT * FROM USUARIOS, I get all > columns correctly. But when I try to get only one column

Re: [GENERAL] Request for help with database of Kenyan election violence

2008-02-02 Thread Christopher Browne
On Feb 2, 2008 4:51 PM, Karl O. Pinc <[EMAIL PROTECTED]> wrote: > Hello, > > The Kenya National Commission for Human Rights is investigating > the violence in Kenya. This has led to an urgent request on Groklaw > http://www.groklaw.net/article.php?story=20080202013451629 > for assistance in settin

Re: [GENERAL] PostgreSQL/PHP Application Server

2008-02-02 Thread Brian A. Seklecki (Mobile)
On Thu, 2008-01-24 at 13:10 -0500, John DeSoi wrote: > . The user/login system is extensible, so you could write your own. I'm not sure if I follow: Are you suggestion that the CMS system, Drupal, is an example of an application server model because of its framework extension? ~BAS IMPORTAN

Re: [GENERAL] Performance problems with Postgresql/ZFS/Non-global zones on Solaris?

2008-02-02 Thread jiniusatwork-postgresql
Don't even bother trying to tune zfs untill after you've tuned postgres, otherwise your wasting your time. -- Robert Treat Build A Brighter LAMP :: Linux Apache {middleware} PostgreSQL As it turns out, I think the ZFS-on-RAID setup I had is the problem[1]. After running some more I/O tests w

[GENERAL] temp sequence

2008-02-02 Thread Sim Zacks
"PostgreSQL 8.2.4 on i386-pc-linux-gnu, compiled by GCC i386-pc-linux-gnu-gcc (GCC) 4.1.1 (Gentoo 4.1.1)" I am creating a temporary sequence in a function and it seems like it is not going away after the function finishes. The front end is in MS Access 2000 and I have a single connection. When

Re: [GENERAL] temp sequence

2008-02-02 Thread Jaime Casanova
On Feb 3, 2008 1:39 AM, Sim Zacks <[EMAIL PROTECTED]> wrote: > "PostgreSQL 8.2.4 on i386-pc-linux-gnu, compiled by GCC i386-pc-linux-gnu-gcc > (GCC) 4.1.1 (Gentoo 4.1.1)" > > I am creating a temporary sequence in a function and it seems like it is not > going away after the function finishes. > The