We've got an app, I don't know all the details of the schema offhand,
but its using date partitioned tables, its heavily multithreaded and
processing continuous events... Under load, production (overseas) is
getting a SQL deadlock...
Process 20333: DROP table data_details_20100718
Hi Tom,
Bad system call (core dumped)
Have you tried running the initdb with strace or truss? That might give
you a clue as to exactly what system call is failing. Your jail isn't
allowing something fundamental here, but it's hard to guess what.
Or even easier, gdb the core file ...
Greg Smith wrote:
Set -c 300 when you run pgtune and it will do the right thing here.
regarding tuning a database we had a rather neat tool for oracle some
years ago that would connect to a live database and monitor the QEP
(query execution plan) cache for badly indexed queries etc.
It would
Le 09/08/2010 20:04, Bill Christensen a écrit :
Hi folks,
I'm building a new server with postgres/phppgadmin, and having trouble
getting the dumps to work properly. This is my first time installing
postgres, so I very well may have missed something.
Do you use the same server for
Hello All,
I am facing problem with constraint exclusion in table partitioning.
I have master table and 10 child table's with list partitioning.
constraint exclusion ON works for all the check constraint except for
the NOT IN check constraint.
Is this an expected ?
Here is an example:
Greg Smith wrote:
The problem is that few discussions happen on these lists for things
like how do I get used to PostgreSQL after growing up on MySQL? And
that material will never be appropriate for the PostgreSQL
documentation. I would highly encourage people to migrate their
You might find that doing on_exit_reset() in the child would fix the
worst problems, but it still sounds chancy as heck.
Thanks for that. The fork() is certainly more convenient than exec'g something
else - hopefully OK since we're just prototyping something.
Quick question: where is
On 11/08/2010 04:01, Greg Smith wrote:
3. The default configuration settings for PostgreSQL are not optimal
for performance. Can there be a recommended configuration file in the
installation (assuming certain amount of RAM and processor type) ?
This doesn't work because there are many
Hi,
I've started using ARRAY data type recently, and I fell into the
following problem:
When I have a relatively large ARRAY (like [1:500]) takeing an aggregate
function on its elements is not so easy. One has to iterate all the
elements, like this:
SELECT min(A[1]) as a1, min(A[2]) as a2, ...
On Wed, Aug 11, 2010 at 1:31 AM, Samantha Atkins sjatk...@mac.com wrote:
On Aug 9, 2010, at 11:57 AM, Merlin Moncure wrote:
On Mon, Aug 9, 2010 at 2:39 PM, samantha sjatk...@mac.com wrote:
I have been digging into NoSQL of late. For navigational queries it would
be great if there was a way
Suppose you have a table CREATE TABLE tbl_formulas (formula_id integer,
formula text)
The formula field can be any postgres-supported mathematical operation which
references some input data with $1 like sin($1) + cos($1) and returns one
numeric value. Such formulas should be used in the SELECT
On Wed, Aug 11, 2010 at 8:42 AM, Rafal Pietrak ra...@zorro.isa-geek.com wrote:
Hi,
I've started using ARRAY data type recently, and I fell into the
following problem:
When I have a relatively large ARRAY (like [1:500]) takeing an aggregate
function on its elements is not so easy. One has to
On Wed, Aug 11, 2010 at 8:35 AM, Davor J. dav...@live.com wrote:
Suppose you have a table CREATE TABLE tbl_formulas (formula_id integer,
formula text)
The formula field can be any postgres-supported mathematical operation which
references some input data with $1 like sin($1) + cos($1) and
I sent this a few days ago, and haven't heard any response.
Apologies if this went out to the list but I don't see any way to
search the archives, and I'm still looking for some answers.
Hi folks,
I'm building a new server with postgres/phppgadmin, and having
trouble getting the dumps to
Samantha Atkins sjatk...@mac.com writes:
In many OO projects the majority of the work on persistent objects is
navigational and inserts with relatively few updates. Queries are
usually mainly for initial working set in many such systems and little
else. When retrieving an object given a
I can retrieve the table names in my database, but I would like to
filter them based on the name of a field. Is this possible?
Thanks
Garry
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To make changes to your subscription:
On 11 August 2010 15:13, Garry Saddington ga...@schoolteachers.co.uk wrote:
I can retrieve the table names in my database, but I would like to filter
them based on the name of a field. Is this possible?
Thanks
Garry
--
Hi Garry,
You can do this:
SELECT table_name
FROM
Am Mittwoch 11 August 2010 16:20:27 schrieb Bill Christensen:
Hi,
Export error: Failed to execute pg_dump (given path in your
conf/config.inc.php :
Is pg_dump executable?
Did you try to do a manual dump w/o phpadmin?
Regards, Jens
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Daniel Verite wrote:
On the other hand, some of the notes already mentioned on the wiki, such as
for example:
http://www.xach.com/aolserver/mysql-to-postgresql.html
...are so outdated and/or bad that they're probably counter-productive.
...
IMHO such contents should simply be scraped/unlinked.
Is it possible to change password through pg_auth?
I am developing a VM where may be necessary to reset passwords through
a web interface, without having postgresql actually running.
If the users are already set in the database, can the passwords be
changed by adding their md5 encoding to
Marco Colombo wrote:
Well, many defaults are hardcoded into a file now. I'd like to see
'auto' among possible values of parameters, e.g.:
with PG wild guessing reasonable values based on system specs. It may
be a awful piece of code (getting system info is very platform
specific), and
After restoring from online backup and archive xlog files, I query pg_proc
using SQL: select * from pg_proc where proname = 'xxx' and oid = XXX. I got no
result back, but when using SQL:select * from pg_proc where proname = 'xxx', I
got what I want, and the result OID is just the one in the
Richard husttrip...@vip.sina.com writes:
After restoring from online backup and archive xlog files, I query pg_proc
using SQL: select * from pg_proc where proname = 'xxx' and oid = XXX. I got
no result back, but when using SQL:select * from pg_proc where proname =
'xxx', I got what I want,
This information is correct the header file libintl.h is NOT included in
the binary distro.
For a workaround, you can create an empty libintl.h file in local header
directory and add that dir to the include path.
--
View this message in context:
This information is correct the header file libintl.h is NOT included in
the binary distro.
For a workaround, you can create an empty libintl.h file in local header
directory and add that dir to the include path.
When compilinga server side C function with VS2010 or VS2005
The struct
Excerpts from Torsten Zühlsdorff's message of mié ago 11 02:52:34 -0400 2010:
Hi Tom,
Bad system call (core dumped)
Have you tried running the initdb with strace or truss? That might give
you a clue as to exactly what system call is failing. Your jail isn't
allowing something
I did the followwing things to make a backup:
1.config the archive on
2. select * from pg_start_backup()
3.tar the $PTDATA dir to a package
4.select * from pg_stop_backup()
The followwing things to restore:
1.Unzip the tar package I packaged
2.Copy the archived XLOG fils to $PTDATA
3.pg_ctl start
--
Richard
2010-08-12
-
发件人：Richard
发送日期：2010-08-12 00:11:13
收件人：Tom Lane
抄送：pgsql-general
主题：Re: [GENERAL] Restore from online backup, query from pg_proc, got wrong
result, please see
On Wed, Aug 11, 2010 at 11:57 AM, Davor J. dav...@live.com wrote:
On 11/08/2010 16:26, Merlin Moncure wrote:
On Wed, Aug 11, 2010 at 8:35 AM, Davor J.dav...@live.com wrote:
Suppose you have a table CREATE TABLE tbl_formulas (formula_id integer,
formula text)
The formula field can be any
Alvaro Herrera alvhe...@commandprompt.com writes:
Excerpts from Torsten Zühlsdorff's message of mié ago 11 02:52:34 -0400
2010:
Bad system call (core dumped)
I think you should try harder to generate the core file. Maybe you have
too low an ulimit -c setting?
The kernel message
Jacqui Caren-home wrote:
we had a rather neat tool for oracle some
years ago that would connect to a live database and monitor the QEP
(query execution plan) cache for badly indexed queries etc.
It would use this information (with the schema meta data) to suggest
creation and deletion of indices
Hi all,
Is it possible to control the representation of boolean data in a
pg_dump?
The pg docs say that booleans can be stored as 't', 'true', 'y',
'yes', or '1'. My db is storing them as 't' and pg_dump is outputing
them as 'true'. Can I coerce pg_dump to output 't' as 1?
I'm using
Tom Lane wrote:
Bruce Momjian br...@momjian.us writes:
Greg Sabino Mullane wrote:
Specifically, LANGUAGE changes the headers of pg_controldata
(but not the actual output, LC_ALL does that). Thanks for the
nudge, I'll get to rewriting some code.
pg_upgrade does this in controldata.c
On Aug 11, 2010, at 13:00 , Scott Frankel wrote:
The pg docs say that booleans can be stored as 't', 'true', 'y', 'yes', or
'1'.
Booleans are not stored as those literals: those are only acceptable literals
(i.e., string representations) for boolean values.
I'm using pg_dump to create an
Hello. We are new to Postgres, and are in the process of migrating our
project's app from Oracle.
I have been using Embarcadero's ER/Studio as a data modeling/DDL tool
for 15 years (and love it!), but its support for Postgres 8.4 is weak
(e.g., missing many datatypes, no function-based
On Wed, 2010-08-11 at 13:17 -0400, Michael C Rosenstein wrote:
Hello. We are new to Postgres, and are in the process of migrating our
project's app from Oracle.
I have been using Embarcadero's ER/Studio as a data modeling/DDL tool
for 15 years (and love it!), but its support for Postgres
Hi,
I'm getting this error when trying to select from a table:
8 trigger record(s) not found for relation managements
Looking into this a little, I found this page
http://www.postgresql.org/docs/8.0/static/catalog-pg-trigger.html that
says:
Note: pg_class.reltriggers needs to agree with the
On Wednesday 11 August 2010 07.31:24 Samantha Atkins wrote:
There is also the interesting case of dynamic OO languages where
technically the object fields do not have a defined type to start
with.
I'm not sure what you want to say here. If you apply this to databases, my
answer is: if you
Excerpts from rh's message of mié ago 11 15:24:33 -0400 2010:
Hi,
I'm getting this error when trying to select from a table:
8 trigger record(s) not found for relation managements
Looking into this a little, I found this page
http://www.postgresql.org/docs/8.0/static/catalog-pg-trigger.html
John R Pierce wrote:
On 07/23/10 3:48 PM, Kerry Sainsbury wrote:
Is it really GPL? Any code I write that uses JASPA must also be
GPL'ed? Shouldn't it be LGPL?
IANAL, but if this is PL/Java based, then your code shouldn't need to be
GPL as you're not linking with it, you're just
On Aug 11, 2010, at 10:12 AM, Michael Glaesemann wrote:
On Aug 11, 2010, at 13:00 , Scott Frankel wrote:
The pg docs say that booleans can be stored as 't', 'true', 'y',
'yes', or '1'.
Booleans are not stored as those literals: those are only
acceptable literals (i.e., string
On Aug 11, 2010, at 18:21 , Scott Frankel wrote:
On Aug 11, 2010, at 10:12 AM, Michael Glaesemann wrote:
One option is to use COPY to export the data in a format you like. For
example: COPY (SELECT CAST(boolean_column AS INT) FROM my_table) TO STDOUT.
Then write a script which reads
On Aug 11, 2010, at 3:57 PM, Michael Glaesemann wrote:
On Aug 11, 2010, at 18:21 , Scott Frankel wrote:
On Aug 11, 2010, at 10:12 AM, Michael Glaesemann wrote:
One option is to use COPY to export the data in a format you like.
For example: COPY (SELECT CAST(boolean_column AS INT) FROM
On 11/08/2010 17:34, Greg Smith wrote:
The problem here is that the amount of shared memory a system can
allocate is hard to discover any other way than starting the server and
seeing if it works. So doing what you advise will leave the database
unable to start on any system that hasn't gotten
On Tue, Aug 10, 2010 at 11:35:48PM -0700, John R Pierce wrote:
We've got an app, I don't know all the details of the schema
offhand, but its using date partitioned tables, its heavily
multithreaded and processing continuous events... Under load,
production (overseas) is getting a SQL
Marco Colombo pg...@esiway.net writes:
It's a matter of correctness: I see PG as a high
performance database system. Allowing to start it in awfully suboptimal
conditions it's no different from allowing '-00-00' as a date: it
may give you the idea you did the right thing, but most of
Greg Smith wrote:
Greg Williamson wrote:
Our tests -- very much oriented at postGIS found Oracle to be between 5
and 15% _faster_ depending on the specifics of the task. We decided to go
with postgres given the price difference (several hundred thousand dollars
for
Oracle in the
Greg Smith wrote:
Tom Lane wrote:
I'm sure EnterpriseDB or one of the other PG support companies
would be happy to sell you a support contract, if having somebody to sue
is an essential part of happiness.
And on a good day, access to someone with the source code who will
actually
Paul Ramsey wrote:
Did the FAA ever publish slides of those talks? Sure wish I could see them...
:)
No, sorry, I don't think I ever saw the slides published.
---
P.
On 2010-08-11, at 6:58 PM, Bruce Momjian
2010/8/12 Tom Lane t...@sss.pgh.pa.us:
Unfortunately, there are quite a few of us for whom correctness
doesn't mean automatically try to eat all the resources available.
Your view of what is useful behavior is far too narrow-minded ...
The point is, some one installing PostgreSQL for the
Ma Sivakumar wrote:
There can be a stronger and more prominent hint / recommendation in
postgresql.conf file, in install README, Resource Consumption section
of manual
(http://www.postgresql.org/docs/8.4/interactive/runtime-config-resource.html)
and other appropriate places
What you might
Did the FAA ever publish slides of those talks? Sure wish I could see them... :)
P.
On 2010-08-11, at 6:58 PM, Bruce Momjian br...@momjian.us wrote:
Greg Smith wrote:
Greg Williamson wrote:
Our tests -- very much oriented at postGIS found Oracle to be between 5
and 15% _faster_ depending on
On 08/11/10 6:32 PM, David Fetter wrote:
does anyone have any suggestions for what to look for, or what sort
of common partition management mistakes in the application could
lead to this sort of deadlock?
DDL is a don't do it at peak load event. More realistically, it's
more like a down time
On Thu, Aug 12, 2010 at 10:53 AM, Greg Smith g...@2ndquadrant.com wrote:
If only it were that easy. 25%, but only on a dedicated server, don't go
above 8GB, limit to much less than that on Windows, and be extremely careful
if you're writing heavily lest large checkpoints squash you. Giving
Sandeep Srinivasa wrote:
Maybe a tabular form would be nice - work_mem under...
The problem with work_mem in particular is that the useful range depends
quite a bit on how complicated you expect the average query running to
be. pgtune tries to model this using an input of what type of
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