Em Wednesday 07 November 2007 13:54:32 rihad escreveu:
May I, as an outsider, comment? :) I really think of ASC NULLS FIRST
(and DESC NULLS LAST) as the way to go. Imagine a last_login column that
sorts users that have not logged in as the most recently logged in,
which is not very intuitive.
I tested performance of my query with limit clause inside plpgsql procedure.
2 slightly different situations:
1. Sql with limit clause and literal variable (for example 'select field1
from table1 limit 100')
2. The same sql with limit clause and pgplsql variable (for example 'select
field1 from
We use a tape backup software that does incremental backups
as follows:
- In a full backup, all files are backed up.
- In an incremental backup, only the files with modification
date after the last backup are backed up.
Now when such a backup is restored, you first have to restore
the full
On 08/11/2007, Albe Laurenz [EMAIL PROTECTED] wrote:
We use a tape backup software that does incremental backups
as follows:
- In a full backup, all files are backed up.
- In an incremental backup, only the files with modification
date after the last backup are backed up.
Now when such
is it just a simple ommission, or am i missing something?
we have interval / float8 ( = interval), so i think that adding interval
/ interval ( = float8) should be possible.
depesz
--
quicksil1er: postgres is excellent, but like any DB it requires a
highly paid DBA. here's my CV! :)
We need to import data from a relatively large MySQL database into an
existing PostgreSQL database, using a PHP5 script that SELECTs from MySQL
and INSERTs in PostgreSQL. A part of the import involves moving about
1,300,000 records from one MySQL table to one of our PostgreSQL tables. The
problem
In response to Vivek Khera [EMAIL PROTECTED]:
On Nov 1, 2007, at 8:51 PM, Ow Mun Heng wrote:
Another question is, based on what I've read in the archives (in my
laptop.. No-Inet conn @ work) Since I've overran my max_FSM, I'm
basically screwed and will have to do a vacuum verbose FULL
As a prelude to where I really want to go, please
consider the following SELECT statement.
SELECT close_price FROM stockprices A
WHERE price_date =
(SELECT MAX(price_date) FROM stockprices B
WHERE A.stock_id = B.stock_id AND A.stock_id =
id);
stockprices has a primary key
Try to one of these:
a) don't use INSERT statements, use a COPY instead
b) from time to time run ANALYZE on the public table (say 1000
inserts, then one analyze)
c) create the table without constraints (primary / foreign keys in this
case), import all the data, and then create the
one possible implementation
http://www.pgsql.cz/index.php/PL/pgSQL_%28en%29#Usage_of_PL.2FpgSQL_functions_for_designing_own_operators
Pavel
On 08/11/2007, hubert depesz lubaczewski [EMAIL PROTECTED] wrote:
is it just a simple ommission, or am i missing something?
we have interval / float8 ( =
Reg Me Please [EMAIL PROTECTED] writes:
Il Thursday 08 November 2007 16:18:58 Tom Lane ha scritto:
It's either an int8 representing microseconds away from 2000-01-01
00:00:00 UTC, or a float8 representing seconds away from the same
origin.
Does this mean that negative numbers are for
That makes sense, thanx.
Another individual was having problems adjusting the shared_memory
settings higher than 1.2GB on a 8GB 64bit machine running Vista.
Whenever he would adjust higher than that, the postgresql service
wouldn't start throwing some kind of error. In linux, one would
On Nov 8, 2007 9:39 AM, Tom Lane [EMAIL PROTECTED] wrote:
Peter Childs [EMAIL PROTECTED] writes:
On 08/11/2007, Albe Laurenz [EMAIL PROTECTED] wrote:
So if we perform our database backups with incremental
backups as described above, we could end up with additional
files after the restore,
Il Thursday 08 November 2007 17:09:22 Tom Lane ha scritto:
Reg Me Please [EMAIL PROTECTED] writes:
Il Thursday 08 November 2007 16:18:58 Tom Lane ha scritto:
It's either an int8 representing microseconds away from 2000-01-01
00:00:00 UTC, or a float8 representing seconds away from the same
Sergey Moroz [EMAIL PROTECTED] writes:
I tested performance of my query with limit clause inside plpgsql procedure.
2 slightly different situations:
1. Sql with limit clause and literal variable (for example 'select field1
from table1 limit 100')
2. The same sql with limit clause and pgplsql
On Thu, Nov 08, 2007 at 10:50:39AM -0500, Tom Lane wrote:
hubert depesz lubaczewski [EMAIL PROTECTED] writes:
we have interval / float8 ( = interval), so i think that adding interval
/ interval ( = float8) should be possible.
What would you define it to mean, keeping in mind that an interval
Il Thursday 08 November 2007 16:18:58 Tom Lane ha scritto:
It's either an int8 representing microseconds away from 2000-01-01
00:00:00 UTC, or a float8 representing seconds away from the same
origin.
Does this mean that negative numbers are for timestamps before y2k?
Why and when there is a
hubert depesz lubaczewski [EMAIL PROTECTED] writes:
we have interval / float8 ( = interval), so i think that adding interval
/ interval ( = float8) should be possible.
What would you define it to mean, keeping in mind that an interval
has three components not one?
Peter Childs wrote:
We use a tape backup software that does incremental backups
[...]
So if we perform our database backups with incremental
backups as described above, we could end up with additional
files after the restore, because PostgreSQL files can get
deleted (e.g. during DROP TABLE or
Peter Childs [EMAIL PROTECTED] writes:
On 08/11/2007, Albe Laurenz [EMAIL PROTECTED] wrote:
So if we perform our database backups with incremental
backups as described above, we could end up with additional
files after the restore, because PostgreSQL files can get
deleted (e.g. during DROP
Krasimir Hristozov \(InterMedia Ltd\) [EMAIL PROTECTED] writes:
We need to import data from a relatively large MySQL database into an
existing PostgreSQL database, using a PHP5 script that SELECTs from MySQL
and INSERTs in PostgreSQL. A part of the import involves moving about
1,300,000
Reg Me Please [EMAIL PROTECTED] writes:
Il Thursday 08 November 2007 17:09:22 Tom Lane ha scritto:
configure --enable-integer-datetimes.
How can I tell which one has been choosen by my distribution (Ubuntu)?
show integer_datetimes. For programmatic purposes, try
PQparameterStatus(pgconn,
Does anyone know how to adjust the IPC settings in Windows?
There aren't any such settings in Windows, AFAIK.
Correct. The only real adjustable limit is the size of the Windows
pagefile, but that one is normally dynamic.
[Lee Keel]
What if the page file exceeds the
On Thursday 08 November 2007, Albe Laurenz [EMAIL PROTECTED]
wrote:
Can you give me a good reason why?
Try re-reading the instructions on backup in the manual.
I know them well. That is why I ask if this questionable procedure
could lead to damage.
You cannot backup a live database with a
On Nov 1, 2007, at 8:51 PM, Ow Mun Heng wrote:
Another question is, based on what I've read in the archives (in my
laptop.. No-Inet conn @ work) Since I've overran my max_FSM, I'm
basically screwed and will have to do a vacuum verbose FULL on the
entire DB. Crap..
I've seen this repeated
Samantha Atkins [EMAIL PROTECTED] writes:
What can I expect for a date format from a PGresult containing binary
results? Specifically the Oid type is TIMESTAMPTZOID.
It's either an int8 representing microseconds away from 2000-01-01
00:00:00 UTC, or a float8 representing seconds away from
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Magnus Hagander
Sent: Thursday, November 08, 2007 12:47 AM
To: Tom Lane
Cc: Kevin Neufeld; pgsql-general@postgresql.org
Subject: Re: [GENERAL] System V IPC on Windows
Does anyone
Tom Lane wrote:
So if we perform our database backups with incremental
backups as described above, we could end up with additional
files after the restore, because PostgreSQL files can get
deleted (e.g. during DROP TABLE or TRUNCATE TABLE).
Could such resurrected files (data files, files in
In response to Krasimir Hristozov \(InterMedia Ltd\) [EMAIL PROTECTED]:
We need to import data from a relatively large MySQL database into an
existing PostgreSQL database, using a PHP5 script that SELECTs from MySQL
and INSERTs in PostgreSQL. A part of the import involves moving about
Hello all,
I changed my postgresql.conf settings and restarted postmaster show changes
would take affect however when I type 'show all' I don't see the changes
reflected...how do I get this file to be reloaded??
effective_cache (requires restart)
shared_buffers (requires restart)
version 8.2.5
hi list
i was writing the query below containing a subquery. by mistake, i
referenced a field from the main table in the subquery, leading to a
very strange (but working??) result. the planner announced a insanely
high startup cost, but the query itself finished pretty quickly.
Reg Me Please wrote:
Il Thursday 08 November 2007 16:18:58 Tom Lane ha scritto:
It's either an int8 representing microseconds away from 2000-01-01
00:00:00 UTC, or a float8 representing seconds away from the same
origin.
Does this mean that negative numbers are for timestamps before y2k?
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Magnus Hagander
Sent: Thursday, November 08, 2007 1:30 PM
To: Kevin Neufeld
Cc: Tom Lane; pgsql-general@postgresql.org
Subject: Re: [GENERAL] System V IPC on Windows
Pg on win32 is
Kevin Neufeld wrote:
That makes sense, thanx.
Another individual was having problems adjusting the shared_memory
settings higher than 1.2GB on a 8GB 64bit machine running Vista.
Pg on win32 is 32-bit. It has a total address space of 2Gb, minus the OS
overhead, minus the code, minus local
Lee Keel wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Magnus Hagander
Sent: Thursday, November 08, 2007 12:47 AM
To: Tom Lane
Cc: Kevin Neufeld; pgsql-general@postgresql.org
Subject: Re: [GENERAL] System V IPC on Windows
=?ISO-8859-1?Q?Christian_Schr=F6der?= [EMAIL PROTECTED] writes:
I don't want to kill -9 the processes because the last time
I did this the database was in recovery mode for a substantial amount of
time.
A useful tip on that: if you perform a manual CHECKPOINT just before
issuing the kills,
[EMAIL PROTECTED] (=?UTF-8?B?VG9tw6HFoSBWb25kcmE=?=) writes:
Try to one of these:
a) don't use INSERT statements, use a COPY instead
b) from time to time run ANALYZE on the public table (say 1000
inserts, then one analyze)
c) create the table without constraints (primary / foreign keys
Lee Keel wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Magnus Hagander
Sent: Thursday, November 08, 2007 1:30 PM
To: Kevin Neufeld
Cc: Tom Lane; pgsql-general@postgresql.org
Subject: Re: [GENERAL] System V IPC on Windows
Pg
I was able to figure this out...
Thanks all...Michelle
smiley2211 wrote:
Hello all,
I changed my postgresql.conf settings and restarted postmaster show
changes would take affect however when I type 'show all' I don't see the
changes reflected...how do I get this file to be reloaded??
On Thu, Nov 08, 2007 at 09:35:19PM +0100, Thomas H. wrote:
i was writing the query below containing a subquery. by mistake, i
referenced a field from the main table in the subquery, leading to a
very strange (but working??) result. the planner announced a insanely
high startup cost, but the
i was writing the query below containing a subquery. by mistake, i
referenced a field from the main table in the subquery, leading to a
very strange (but working??) result. the planner announced a insanely
high startup cost, but the query itself finished pretty quickly.
Pick up any SQL
On Thu, 2007-11-08 at 17:11 +0100, Albe Laurenz wrote:
Tom Lane wrote:
So if we perform our database backups with incremental
backups as described above, we could end up with additional
files after the restore, because PostgreSQL files can get
deleted (e.g. during DROP TABLE or TRUNCATE
Hi all,
any news about this issue? Anything else that I can do to help you?
Meanwhile there are 4 connections in the same state. (I did not do the
whole investigation on all 4, but since they all do not respond on a
SIGINT I assume that they all have the same problem.)
It may also be
Ted Byers [EMAIL PROTECTED] writes:
As a prelude to where I really want to go, please
consider the following SELECT statement.
SELECT close_price FROM stockprices A
WHERE price_date =
(SELECT MAX(price_date) FROM stockprices B
WHERE A.stock_id = B.stock_id AND A.stock_id =
=?ISO-8859-1?Q?Christian_Schr=F6der?= [EMAIL PROTECTED] writes:
any news about this issue?
Not a lot. I've been able to confirm on my own Fedora 6 machine that
the mere act of loading plperl.so into the backend causes the process
to have one thread instead of no threads, as reported by gdb.
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