Hi,
What is the best way to calculate an MD5 Sum for a set of rows in a table, on a
Postgresql server?
-Message d'origine-
De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de Scott Marlowe
Envoyé : mardi, 31. mai 2005 18:37
À : [EMAIL PROTECTED]
Cc : pgsql-general
Objet : Re:
Moving table spaces along raids definately helps but will moving tablespaces across partitions help??? in my opinion it should lead to degradation of performance because read/write head will have to move more.
also, i have two raids my data is in first one... and xlog in the other.
On Wed, 2005-06-01 at 08:22 +0200, Philippe Lang wrote:
What is the best way to calculate an MD5 Sum for a set of rows in a
table, on a Postgresql server?
The md5() builtin function. contrib/pgcrypto is available if you need
more sophisticated hashing / encryption.
-Neil
# [EMAIL PROTECTED] / 2005-05-19 12:14:58 -0400:
lister [EMAIL PROTECTED] writes:
This was the topic of 20 minutes of conversation in 2 tutorials
at BSDCan.
Well, if the BSD people are so concerned about it, why don't they fix
their bleedin' OS? It's inexcusable to have a jail feature
You will need to modify your shared memory settings or change your
shared_buffers parameter in the postgresql.conf file. (Most likely need to
increase SHMMAX as the default for OSX is quite low as I recall)
Take a look here:
http://www.postgresql.org/docs/8.0/static/kernel-resources.html
There
On Wed, 2005-06-01 at 00:27 -0400, Alvaro Herrera wrote:
On Wed, Jun 01, 2005 at 01:21:28AM +0100, Simon Riggs wrote:
On Tue, 2005-05-31 at 18:28 +0200, Harald Fuchs wrote:
SELECT g.num
FROM generate_series ((SELECT min(doc_numero) FROM bdocs),
(SELECT
In article [EMAIL PROTECTED],
Simon Riggs [EMAIL PROTECTED] writes:
If the WHERE clause said bdocs.doc_numero 7 we would hope that this
was applied before the join.
Stating this would change the OUTER into an INNER JOIN, and this would
imply that the order of the restrictions is irrelevant -
Robert Treat wrote:
On Tuesday 24 May 2005 23:49, Tom Lane wrote:
Bruno Wolff III [EMAIL PROTECTED] writes:
Marc G. Fournier [EMAIL PROTECTED] wrote:
Estimate right now for going beta on 8.1 is July 1st ... aiming for a
Isn't that feature freeze? Typically there has been a month
Hi
I'm a new user to Postgresql.
I've installed it as an application in Windows. My intent is togain
experience in usingsql to build a database.
I'm having problems understanding how to begin.
When I start the database is there any indicator that it is actually
running?
Do I need to add
Is it possible to prevent a user from changing their password?
I have a database with a 'Guest' account, that will have limited
access. I don't want any of my guests to change the Guest account
password.
tia
Richard
---(end of broadcast)---
TIP 2:
Bob,
On May 31, 2005, at 3:24 PM, Bob Pawley wrote:
I'm a new user to Postgresql.
I've installed it as an application in Windows. My intent is to gain
experience in using sql to build a database.
I'm having problems understanding how to begin.
When I start the database is there any
Simon Riggs wrote:
You could use something like that:
SELECT g.num
FROM generate_series ((SELECT min(doc_numero) FROM bdocs),
(SELECT max(doc_numero) FROM bdocs)) AS g(num)
LEFT JOIN bdocs ON bdocs.doc_numero = g.num
WHERE bdocs.doc_numero IS NULL
SELECT g.num
FROM
Hello SQL Aces !
I want to do a select on a table distinct on linkid and sorted by
date. I have try this
SELECT DISTINCT ON (linkid) * FROM all_links
WHERE uid='2' AND DATE_TRUNC('day',read_date) = DATE_TRUNC('day',
TIMESTAMP '2005-06-01') ORDER BY linkid, read_date;
With this
you can also try this =)
select
o1.doc_numero+1 as first,
((select doc_numero from bdocs where id o1.doc_numero+1 order by doc_numero limit 1))-1 as last
from bdocs as o1
where o1.doc_numero+1 not in (select o2.doc_numero from bdocs as o2)
order by doc_numero2005/5/31, josue [EMAIL
Hello
Everybody, somebody knows if its possible to catch one sentences in full SQL
using the triggers, or maybe somebody have any idea about to how do
it?
I am
using postgreSQL 7.3 on fedora core 1
Thanks in
advancedManuel
how about (untested)
select *
from
(
SELECT DISTINCT ON (linkid) *
FROM all_links
WHERE uid='2' AND DATE_TRUNC('day',read_date) = DATE_TRUNC('day',TIMESTAMP
'2005-06-01')
ORDER BY linkid
) A
ORDER BY read_date DESC limit 100
-- Original Message ---
From: FC [EMAIL
Simon Riggs [EMAIL PROTECTED] writes:
On Wed, 2005-06-01 at 00:27 -0400, Alvaro Herrera wrote:
SELECT g.num
FROM generate_series ((SELECT min(doc_numero) FROM bdocs),
(SELECT max(doc_numero) FROM bdocs)) AS g(num)
LEFT JOIN bdocs ON bdocs.doc_numero = g.num
WHERE bdocs.doc_numero IS NULL
I
Greetings!
At some point, I'm not even sure when, I apparently had a bad upgrade on
one of my production databases. I'm in a situation now where I've got
my back up against a wall and not sure what to do. The problem is, I'm
receiving this message frequently:
did not find '}' at end of
On Wed, Jun 01, 2005 at 04:40:48PM +0200, FC wrote:
Hello SQL Aces !
I want to do a select on a table distinct on linkid and sorted by
date. I have try this
How about a subquery?:
SELECT * FROM
( SELECT DISTINCT ON (linkid) * FROM all_links
WHERE uid='2' AND
I'm looking for a way to enable a function to commit a unit of work that
does not affect the caller's transaction. I'm coming from the Oracle
world where I've used the autonomous_transaction pragma of PL/SQL to
do this. I'm new to Postgres, but I'm hopeful that I can move our
systems from
Richard Hayward [EMAIL PROTECTED] writes:
Is it possible to prevent a user from changing their password?
No.
I have a database with a 'Guest' account, that will have limited
access. I don't want any of my guests to change the Guest account
password.
Perhaps you should use something other
Manuel García wrote:
Hello Everybody, somebody knows if its possible to catch one
sentences in full SQL using the triggers, or maybe somebody have any
idea about to how do it?
I am using postgreSQL 7.3 on fedora core 1
If I understand, you want to access the query, e.g. SELECT * FROM
I'm cross posting this because it is an excellent opportunity for students.
I was a paid intern (studying pterodactyls), and my company employs paid
interns to perform well bounded summer projects. The intern gains
invaluable industry experience and a semester's worth of tuition (or beer).
One
Gerald D. Anderson wrote:
Greetings!
At some point, I'm not even sure when, I apparently had a bad upgrade on
one of my production databases. I'm in a situation now where I've got
my back up against a wall and not sure what to do. The problem is, I'm
receiving this message frequently:
Hi,
Can pg_dump be used to backup a selected number of tables, (rather than
All or One)?
We have a case where we need to backup tables of the form sale_2001xx,
or sale_2002xx, etc.
Our current solution is the following:
pg_dump -d dbname -t sale_200101 sales_2001_dump
pg_dump -d
data # pg_dump -Fc -f blah.txt -tforums_auth forums22 -u
User name: postgres
Password:
pg_dump: SQL command failed
pg_dump: Error message from server: ERROR: did not find '}' at end of
input node
pg_dump: The command was: SELECT (SELECT usename FROM pg_user WHERE
usesysid = datdba) as
Ok. Richard, that is that I need to do, I need to create a log table with
all the information that is changed on every row that was update, delete or
insert, additionally I must be record the user that do that. At this point I
don't have troubles I can do that, but I need to get the full
On Wed, Jun 01, 2005 at 10:24:25AM -0500, Gerald D. Anderson wrote:
Greetings!
At some point, I'm not even sure when, I apparently had a bad upgrade on
one of my production databases. I'm in a situation now where I've got
my back up against a wall and not sure what to do. The problem is,
On Wed, Jun 01, 2005 at 03:38:01PM +, Matt Miller wrote:
I'm looking for a way to enable a function to commit a unit of work that
does not affect the caller's transaction. I'm coming from the Oracle
world where I've used the autonomous_transaction pragma of PL/SQL to
do this. I'm new to
I need to remember to keep things simple...
Works fine, thanks.
Fred
On Jun 1, 2005, at 5:20 PM, Jim Buttafuoco wrote:
how about (untested)
select *
from
(
SELECT DISTINCT ON (linkid) *
FROM all_links
WHERE uid='2' AND DATE_TRUNC('day',read_date) = DATE_TRUNC
('day',TIMESTAMP
On Jun 1, 2005, at 11:52 AM, Bob Pawley wrote:
Dear Mr. DeSoi
Thank you for responding.
I originally installed it as a service. However, I wasn't able to make
the connection to the server. (I am assuming the red X next to the
server name means that it is off.)
Thinking there might be a
On Wed, 2005-06-01 at 10:52, Alvaro Herrera wrote:
On Wed, Jun 01, 2005 at 03:38:01PM +, Matt Miller wrote:
I'm willing to use a different language, or even the libpq API if
necessary.
If you really need autonomous transactions, you can establish an
independent connection within a
Scott Marlowe [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
On Fri, 2005-05-27 at 09:57, [EMAIL PROTECTED] wrote:
Thanks for answer Tom
Consider what happens when the user leaves for lunch
Well, I've already thought about it.But I'm working with
VS2003 and disconnected
On Tue, May 31, 2005 at 18:03:04 +0100,
Richard Hayward [EMAIL PROTECTED] wrote:
Is it possible to prevent a user from changing their password?
I have a database with a 'Guest' account, that will have limited
access. I don't want any of my guests to change the Guest account
password.
Your
Tom Lane wrote:
Gary Horton [EMAIL PROTECTED] writes:
[ assorted startup problems ]
You did not say what platform this is on, nor which Postgres version
you are running. Tsk tsk.
Actually I did mention 7.3.4 Postgres but obviously I didn't do it
clearly. I really
Gerald D. Anderson wrote:
data # pg_dump -Fc -f blah.txt -tforums_auth forums22 -uUser
name: postgres
Password:
pg_dump: SQL command failed
pg_dump: Error message from server: ERROR: did not find '}' at end of
input node
pg_dump: The command was: SELECT (SELECT usename FROM pg_user
Gary Horton [EMAIL PROTECTED] writes:
Tom Lane wrote:
The -w-doesn't-wait-long-enough bit needs investigation.
No messages, no smoking gun. If you mean running the sh script with -x,
it's really not complicated enough to warrant that - I've added echo
statements to confirm that it's just
Manuel García wrote:
Ok. Richard, that is that I need to do, I need to create a log table
with all the information that is changed on every row that was update,
delete or insert, additionally I must be record the user that do that.
At this point I don't have troubles I can do that, but I need
Tom Lane wrote:
Yeah ... in fact, if you read the script, what it does is loop until a
psql -l succeeds ... so why wouldn't your following instance also
succeed?
regards, tom lane
Ah, I think that you mean to run pg_ctl with a -x option (not my own sh
script). I didn't realize I
Richard Huxton dev@archonet.com writes:
Yep - I'm guessing it's an issue with an array (group membership?) in
pg_user.
No, I'll bet lunch that Alvaro fingered the correct culprit: either
addition or subtraction of that darn hierarchical-query patch. It
changes the on-disk representation of
What's the current status on psql handling typos and interrupts more usefully
by automatically encapsulating every statement in a savepoint? I'm just
curious whether it's already in for 8.1 or if it got stalled.
I ask because I just got bit again by a typo where I accidently deleted the
wrong
Hello,
I have a table, structure like this:
create table product(
sku, int4 not null,
category int4 null,
display_name varchar(100) null,
rank int4 null
)
let say example data:
sku, category, display_name
===
10001, 5, postgresql, 132
10002, 5, mysql, 243
10003, 5, oracle,
Hello!
I have a view that I'm putting into a report in my application. I'd
like to get several blank lines returned by the view as well as the
legitimate data (to leave room in the report for manual entries). I
thought I could make a SRF that would return the data from the view and
then spit
Greg Stark wrote:
What's the current status on psql handling typos and interrupts more usefully
by automatically encapsulating every statement in a savepoint? I'm just
curious whether it's already in for 8.1 or if it got stalled.
I ask because I just got bit again by a typo where I
[EMAIL PROTECTED] wrote:
Hello!
I have a view that I'm putting into a report in my application. I'd
like to get several blank lines returned by the view as well as the
legitimate data (to leave room in the report for manual entries). I
thought I could make a SRF that would return the data
Original Message
Subject: Re: [GENERAL] SRFs returning records from a view
From: Joshua D. Drake [EMAIL PROTECTED]
Date: Wed, June 01, 2005 4:39 pm
To: [EMAIL PROTECTED]
Cc: pgsql-general@postgresql.org
[EMAIL PROTECTED] wrote:
Hello!
I have a view that I'm
thanks for your reply,
I did not presume that it is a bug, I am interested to know how can I
setup a hot standby (if is some more documentation available).
===QUOTE FROM DOCS===
If we continuously feed the series of WAL files to another machine that
has been loaded with the same base backup
On Thu, 2005-06-02 at 01:13 +0300, [EMAIL PROTECTED] wrote:
In this case do you know what is the timeout on the restore_command
command (or where I can find it in documentation).
There isn't one. You decide when restore_command returns.
What will happen if I make the restore command wait for
On Wed, 2005-06-01 at 16:16 -0500, Yudie Pg wrote:
Hello,
I have a table, structure like this:
[...]
Expected query result:
sku, category, display_name, category_count
10001, 5, postgresql, 3
10006, 7, photoshop, 2
10008, 9, Windows XP, 2
The
Thank you Tom.
It was a bit confusing because my WHERE clause looked something like this:
... WHERE date_field - current_date '21 days'::interval;
And then I got records, whose with date_field's year was 2010. :-o
Now I am using this formula:
... WHERE date_field current_date + '21
I have several large tables (10 million to 200 million rows) that have
foreign keys with each other by *convention*, but no actual FOREIGN KEY
constraints.
Over the course of years, orphaned records (children with no parent) have
accumulated and now I want to clean them up. I can't just create
On Thu, Jun 02, 2005 at 01:54:12 +0200,
Havasvölgyi Ottó [EMAIL PROTECTED] wrote:
Thank you Tom.
It was a bit confusing because my WHERE clause looked something like this:
... WHERE date_field - current_date '21 days'::interval;
And then I got records, whose with date_field's year was
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