Bill Moran wrote:
The OP did mention that he's using autovac, which will take care of
both vacuum and analyze for him. However, he didn't provide his
autovac config, and it happens at times that the defaults are not
aggressive enough to keep a table well-maintained.
Here are my
Scott Marlowe-2 wrote:
Just wondering, what version of pgsql are you running? I noticed a
lot less degradation from heavily updated tables when I went to 8.3
and set the fill % for tables / indexes to 90% or so. If you're
running an older version, the upgrade to 8.3 may well be worth
In response to tomrevam :
Scott Marlowe-2 wrote:
Just wondering, what version of pgsql are you running? I noticed a
lot less degradation from heavily updated tables when I went to 8.3
and set the fill % for tables / indexes to 90% or so. If you're
running an older version, the
Raymond O'Donnell wrote:
I fully agree I still use Delphi 6 a lot, and there's an ease of use
about it that leaves other IDEs I've used in the shade. It's just a pity
that it's so expensive
Ray.
--
Raymond O'Donnell,
John R Pierce wrote:
Nico Callewaert wrote:
The thing you always hear about ODBC is, that it is very slow ?
ADO is significantly faster than ODBC, so the preferred stack would be
delphi - ado - postgres ole db - libpq -postgres
I believe there exists a delphi-ado wrapper (at least my
At 01:22 30/09/2009, Matt Friedman wrote:
Hi,
I'm trying to migrate a site to a new hosting company. The backend
uses postgresql 8 and php.
Anyone have thoughts on decent hosting companies for this sort of
thing? I'm just looking at shared hosting as this isn't a resource
intensive site.
I use
Where can I add a integer counter to count the plans considered by planner.
In my opinion, it is in the src/backend/optimizer/path directorty.
On Tue, 2009-09-29 at 03:21 -0600, Scott Marlowe wrote:
On Tue, Sep 29, 2009 at 2:52 AM, Paul Gaspar devl...@revolversoft.com wrote:
Hi!
We have big problems with collation in ORDER BY, which happens in binary
order, not alphabetic (lexicographical), like:.
A
B
Z
a
z
Ä
Ö
Hi there,
I have written some code to calculate basic summary stats and wish to then
incorporate this code within a macro... I want to run the code many multiple
times and define the variables (on which the summary statistics are calculated)
outside of the basic code.
For example, see some
On Wed, Sep 30, 2009 at 11:13:06AM +0100, Bronagh Grimes wrote:
I have written some code to calculate basic summary stats and wish to
then incorporate this code within a macro... I want to run the code
many multiple times and define the variables (on which the summary
statistics are
On Tue, 2009-09-29 at 19:22 -0400, Matt Friedman wrote:
I'm trying to migrate a site to a new hosting company. The backend
uses postgresql 8 and php.
Anyone have thoughts on decent hosting companies for this sort of
thing?
Here is the list at postgresql.org :
In response to tomrevam to...@fabrix.tv:
My apologies, I should have asked for the output of VACUUM VERBOSE on
the problem table in conjunction with these settings. (make sure you
do VACUUM VERBOSE when the table is exhibiting the speed problem)
Bill Moran wrote:
The OP did mention
In response to Vick Khera vi...@khera.org:
On Tue, Sep 29, 2009 at 9:48 AM, Bill Moran wmo...@potentialtech.com wrote:
There has (over the last few years) been a lot of speculation from people
who think that indexes may suffer performance degradation under some
workloads. I've yet to see
On 30 Sep 2009, at 4:01, Vick Khera wrote:
The question still stands: if the COMMIT fails, ROLLBACK is not
required in Postgres. Is this portable to other databases?
I don't think so. I recall messages on this list claiming that some
databases (MS SQL, MySQL if memory serves me) commit
Hello List,
I've run into some weirdness in PSQL 8.3.8 (Ubuntu 8.04 LTS x86_64
package). When I update a row while using a function result
that updates that very same row in the WHERE part of the update,
the main update no longer takes place, even though the WHERE
conditions should match. But if
=?UTF-8?B?57qq5pmT5pum?= sheep...@gmail.com writes:
Where can I add a integer counter to count the plans considered by planner.
Well, you could count the number of calls to add_path, but a path is
hardly the same thing as a complete plan.
regards, tom lane
--
Sent via
Hello,
It seems that very shortly I will have to extract some data from ms-sql server
and load it into postgres.
It seems that the ms-sql is getting bigger with increasingly more users and
performance is getting worse n worse.
And a local copy of data is required for and application that needs
you can try:
CREATE OR REPLACE FUNCTION add_something(text, text)
RETURNS integer AS
$BODY$
DECLARE
somevariable integer;
BEGIN
INSERT INTO sometable (id, foo, bar ) VALUES (DEFAULT, $1, $2 ) RETURNING id
INTO somevariable;
return somevariable;
END;$BODY$ LANGUAGE 'plpgsql' VOLATILE;
--
View
Thomas Jacob ja...@internet24.de writes:
I've run into some weirdness in PSQL 8.3.8 (Ubuntu 8.04 LTS x86_64
package). When I update a row while using a function result
that updates that very same row in the WHERE part of the update,
the main update no longer takes place, even though the WHERE
Sydney Puente wrote:
Hello,
It seems that very shortly I will have to extract some data from
ms-sql server and load it into postgres.
It seems that the ms-sql is getting bigger with increasingly more
users and performance is getting worse n worse.
And a local copy of data is required for and
On Wed, 2009-09-30 at 10:17 -0400, Tom Lane wrote:
Thomas Jacob ja...@internet24.de writes:
I've run into some weirdness in PSQL 8.3.8 (Ubuntu 8.04 LTS x86_64
package). When I update a row while using a function result
that updates that very same row in the WHERE part of the update,
the
I am inserting 250 rows of data (~2kbytes/row) every 5 seconds into a table
(the primary key is a big serial). I need to be able to limit the size of the
table to prevent filling up the disk. Is there a way to setup the table to do
this automatically or do I have to periodically figure out how
Dave Huber wrote:
I am inserting 250 rows of data (~2kbytes/row) every 5 seconds into a
table (the primary key is a big serial). I need to be able to limit
the size of the table to prevent filling up the disk. Is there a way
to setup the table to do this automatically or do I have to
I think there no better way you can get around this problem. You need to
check the disk periodically and it is not to hard.
2009/10/1 Dave Huber dhu...@letourneautechnologies.com
I am inserting 250 rows of data (~2kbytes/row) every 5 seconds into a
table (the primary key is a big serial). I
John R Pierce pie...@hogranch.com writes:
Sydney Puente wrote:
The first isssue that occurs to me is that CP1252 is used throughout
the data and there is a lot of european special characters, e acute
for example. But the column names etc are regular chars [a-zA-Z].
CP1252 aka Windows-1252
Hi all, I use PostgresSQL 8.3 through JDBC
Recently one transaction has failed with the following error message:
Detail: Process 10660 waits for AccessShareLock on relation 36036 of
database 34187; blocked by process 2212.
Process 2212 waits for AccessExclusiveLock on relation 36044 of database
Ivano Luberti lube...@archicoop.it writes:
I'm trying to understand why I can have this kind or error (it is
probably some programming mistake) but reading the PostgresSQL manual I
cannot find any trace of AccessExclusiveLock , while I have found
explanation of what AccessShareLock is.
First
Tom, thanks for your answer: the reason I failed to find
AccessExclusiveLock
is beacuse that string of character is never written in the manual while
AccessShareLock
is written as it is written above in the manual in the section about index
lockin.
Not knowing the manual in detail I
Ivano Luberti lube...@archicoop.it writes:
My problem is I know what query has failed , but I don't know the other
one that caused the deadlock condition.
Ah. Is it practical for you to upgrade to PG 8.4? IIRC the deadlock
reporting code got improved in 8.4 to log all the queries involved.
I don't know: I'm not subscribed to the anno9unce list so I was not
aware 8.4 has now a production release.
In the past upgrading from 8.2 to 8.3 solved a big issues but at the
time the application is not in production.
So we are going to evaluate this option.
Anyway after reading the manual in
Dear my friends
I can not drop a user because another object need it. How can I know
which object need it? I really want to drop everything inside my
PostgreSQL, to reset my installation really from beginning.
postgres=# drop user ivia;
FEHLER: kann Rolle »ivia« nicht löschen, weil andere
In response to Ricky Tompu Breaky ricky.bre...@uni.de:
Dear my friends
I can not drop a user because another object need it. How can I know
which object need it? I really want to drop everything inside my
PostgreSQL, to reset my installation really from beginning.
The easiest way to
Hi -
I'm seeing a behavior with updatable cursors that matches neither the
behavior
of a sensitive cursor nor an insensitive one. In summary, I'm running with
serializable as the isolation level and rows updated within the same
transaction seem to disappear under the cursor.
From the postgres
Daniel F escribió:
SET SESSION CHARACTERISTICS AS TRANSACTION ISOLATION LEVEL SERIALIZABLE;
begin;
show transaction isolation level;
create table foo (a bigint);
insert into foo select generate_series(0, 9);
declare c1 no scroll cursor for select * from foo for update;
update foo set
2009/9/29 Amitabh Kant amitabhk...@gmail.com
On Tue, Sep 29, 2009 at 1:06 PM, György Vilmos vilmos.gyo...@gmail.comwrote:
Hello,
I've done a benchmark of recent versions of PostgreSQL's last five major
releases to see, how performance has changed during the past years from
version to
2009/9/29 Grzegorz Jaśkiewicz gryz...@gmail.com
any chance you can test the recent postgresql Cvs-head build (to be 8.5).
Sadly, no, the machine was not mine and I had to give it back.
--
http://suckit.blog.hu/
2009/9/30 Greg Smith gsm...@gregsmith.com
On Tue, 29 Sep 2009, Gy?rgy Vilmos wrote:
I've done a benchmark of recent versions of PostgreSQL's last five major
releases to see, how performance has changed during the past years from
version to version.
Your comments suggest V8.4 moves
2009/9/30 Scott Marlowe scott.marl...@gmail.com
On Tue, Sep 29, 2009 at 4:47 PM, Greg Smith gsm...@gregsmith.com wrote:
P.S. On your write-heavy tests, increasing checkpoint_segments a lot
should
improve overall performance, if you re-test at some point.
Just wanted to add that in order
You've solved my Problem, Bill.
I thank you very much, my friend Bill Moran. Highly appreciated.
On Wed, 30 Sep 2009 13:45:52 -0400
Bill Moran wmo...@potentialtech.com wrote:
In response to Ricky Tompu Breaky ricky.bre...@uni.de:
Dear my friends
I can not drop a user because
On Wednesday 30 September 2009 10:43:35 am Ricky Tompu Breaky wrote:
Dear my friends
I can not drop a user because another object need it. How can I know
which object need it? I really want to drop everything inside my
PostgreSQL, to reset my installation really from beginning.
Alvaro Herrera alvhe...@commandprompt.com writes:
Interesting. If I create an non-unique index on the table before
declaring the cursor, FETCH throws an error:
alvherre=# fetch all from c1;
ERROR: attempted to lock invisible tuple
I get that in 8.4 and HEAD even without any index, just
Tom Lane escribió:
Alvaro Herrera alvhe...@commandprompt.com writes:
Interesting. If I create an non-unique index on the table before
declaring the cursor, FETCH throws an error:
alvherre=# fetch all from c1;
ERROR: attempted to lock invisible tuple
I get that in 8.4 and HEAD even
Alvaro Herrera escribió:
I played a bit with doing this only when the OPT_CURSOR_INSENSITIVE bit
is set, but I'm not ever seeing it set -- with or with FOR UPDATE ...
Oh, I see, that's a grammar only bit. I need to check rowMarks == NIL
instead. It doesn't help anyway but at least I figured
Alvaro Herrera alvhe...@commandprompt.com writes:
Tom Lane escribió:
I think we need to ensure that when a cursor is created, it obtains a
private copy of the current snapshot ... but I'm not sure where that
ought to happen. Thoughts?
Maybe you are right, but I don't think that's the only
Tom Lane escribió:
Alvaro Herrera alvhe...@commandprompt.com writes:
Tom Lane escribi�:
I think we need to ensure that when a cursor is created, it obtains a
private copy of the current snapshot ... but I'm not sure where that
ought to happen. Thoughts?
Maybe you are right, but I
Alvaro Herrera alvhe...@commandprompt.com writes:
Tom Lane escribió:
Well, the first problem is that 8.4 is failing to duplicate the
historical behavior.
Oh! That's easy.
I don't think that testing rowMarks is the right thing at all here.
That tells you whether it's a SELECT FOR UPDATE,
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