Kalai this is not the proper list to ask, in my opinion. And sincerely I
don't know if a proer list exists.
What you want to achieve is to build a web application and the most
followed way to do that is to use a web framework.
Web frameworks are software that allows you build a web application,
A simple query I can write in any of the following two ways:
1.
Select col1
from table
where col2 in ('A','B');
2.
Select col1
from table
where
col2 = 'A'
or col2 = 'B'
Here IN condition may be more than two.
I need to know which one is good for good performance.
Any idea please.
Hello
2010/12/9 AI Rumman rumman...@gmail.com:
A simple query I can write in any of the following two ways:
1.
Select col1
from table
where col2 in ('A','B');
2.
Select col1
from table
where
col2 = 'A'
or col2 = 'B'
Here IN condition may be more than two.
I need to know which one
Hi, Im using Postgres 8.3 on a Macbook Pro Labtop.
I using the database with just one db connection to build a lucene
search index from some of the data, and Im trying to improve
performance. The key thing is that I'm only a single user but
manipulating large amounts of data , i.e processing
I am preparing an installation disk for a customer. Their installation
includes over ten scheduled jobs. The only way I know of to create a
job is through PGAdmin, using a wizard to enter each piece of
information one screen at a time. I don't want to have to prepare an
instruction document
On 12/9/2010 6:25 AM, Paul Taylor wrote:
Hi, Im using Postgres 8.3 on a Macbook Pro Labtop.
I using the database with just one db connection to build a lucene
search index from some of the data, and Im trying to improve
performance. The key thing is that I'm only a single user but
manipulating
On 12/9/2010 8:50 AM, Andy Colson wrote:
On 12/9/2010 6:25 AM, Paul Taylor wrote:
Hi, Im using Postgres 8.3 on a Macbook Pro Labtop.
I using the database with just one db connection to build a lucene
search index from some of the data, and Im trying to improve
performance. The key thing is that
On 12/09/2010 09:59 AM, Andy Colson wrote:
On 12/9/2010 8:50 AM, Andy Colson wrote:
On 12/9/2010 6:25 AM, Paul Taylor wrote:
You need to bump up your SHMMAX is your OS.
sorry: SHMMAX _in_ your OS.
its an OS setting not a PG one.
-Andy
scroll down to the section on OSX
On Wed, Dec 8, 2010 at 10:58 PM, Raimon Fernandez co...@montx.com wrote:
well, after a VACUUM things are going faster ... I'm still trying to analyze
the function as it seems there are other bottlechecnk, but at least the first
update now is faster as before ...
If that's the case then your
Hi, Im using Postgres 8.3 on a Macbook Pro Labtop.
I using the database with just one db connection to build a lucene
search index from some of the data, and Im trying to improve
performance. The key thing is that I'm only a single user but
manipulating large amounts of data , i.e processing
Hi there,
First: I must say thanks to authors of this two posts:
http://blog.endpoint.com/2010/09/reducing-bloat-without-locking.html
and
http://www.depesz.com/index.php/2010/10/17/reduce-bloat-of-table-without-longexclusive-locks/
These two posts was provided me exellent ideas and starting point
Hi, Im using Postgres 8.3 on a Macbook Pro Labtop.
I using the database with just one db connection to build a lucene
search index from some of the data, and Im trying to improve
performance. The key thing is that I'm only a single user but
manipulating large amounts of data , i.e processing
On 9dic, 2010, at 14:32 , Vick Khera wrote:
well, after a VACUUM things are going faster ... I'm still trying to analyze
the function as it seems there are other bottlechecnk, but at least the
first update now is faster as before ...
If that's the case then your 'no' answer to is the
On Wednesday 08 December 2010 21:58:46 you wrote:
On Thu, Dec 9, 2010 at 1:37 AM, Gabi Julien gabi.jul...@broadsign.com wrote:
slave# /etc/init.d/postgresql start
slave# psql -hlocalhost my_db -c select pg_last_xact_replay_timestamp(),
now() as not_modified_since;
How can I measure the approximate database size based on row data.
Is there any calculation template?
--
Thanks Regards
DJ
The information transmitted is intended only for the person or entity to which
it is addressed and may contain confidential and/or privileged material.
Any review,
Ignore the previous mail.
How can I measure the approximate database size based on raw* data.
Is there any calculation template?
--
Thanks Regards
DJ
--
Thanks Regards
Dhaval Jaiswal | Technical Specialist - Database | Microland Limited
Fax: +91 80 4328 0044. Cell: +91 80953.978.43
On 9dic, 2010, at 04:40 , Raimon Fernandez wrote:
Hello,
I have to audit all the changes for all rows of one database.
I have a trigger that executes BEFORE any update or delete, and simply copy
the row (INSERT INTO) into the replicated table.
For example, every table has the same
On 09/12/2010 15:12, Reid Thompson wrote:
On 12/09/2010 09:59 AM, Andy Colson wrote:
On 12/9/2010 8:50 AM, Andy Colson wrote:
On 12/9/2010 6:25 AM, Paul Taylor wrote:
You need to bump up your SHMMAX is your OS.
sorry: SHMMAX _in_ your OS.
its an OS setting not a PG one.
-Andy
scroll down
On 12/09/2010 12:36 PM, Paul Taylor wrote:
On 09/12/2010 15:12, Reid Thompson wrote:
On 12/09/2010 09:59 AM, Andy Colson wrote:
On 12/9/2010 8:50 AM, Andy Colson wrote:
On 12/9/2010 6:25 AM, Paul Taylor wrote:
You need to bump up your SHMMAX is your OS.
sorry: SHMMAX _in_ your OS.
its an
Hey general@,
To be assured and just for calmness.
Problem:
1. CREATE TABLE test_tab (id integer, dat varchar(64));
2. INSERT INTO test_tab VALUES($1, $2) via PQexecParams,
where paramTypes[0] == OID of bigint,
paramTypes[1] == OID of text.
Questions:
Whether this case falls to
Hey Harald -
The permissions! Of course! Thanks, you fixed me.
Brady
On Wed, Dec 8, 2010 at 6:18 AM, Massa, Harald Armin c...@ghum.de wrote:
Brady,
Then I attempted to mount a normal encrypted volume with TrueCrypt, move
the data\ and sub-folders to this volume and reconfigure PG to
Hi all,
I'm wondering if there's an accepted way to monitor a warm standby
machine's lag in 8.4. The wiki[1] has a link[2] to a script which
parses the output of pg_controldata, looking for a line like this:
Time of latest checkpoint:Thu 09 Dec 2010 01:35:46 PM EST
But I'm not
On Thu, Dec 9, 2010 at 8:37 AM, Jaiswal Dhaval Sudhirkumar
jaiswa...@microland.com wrote:
How can I measure the approximate database size based on raw* data.
Is there any calculation template?
--
Thanks Regards
DJ
One option:
select pg_size_pretty( pg_database_size( 'yourdatabase' ) );
--
On Thursday, December 9, 2010, Raimon Fernandez co...@montx.com wrote:
On 9dic, 2010, at 04:40 , Raimon Fernandez wrote:
Hello,
I have to audit all the changes for all rows of one database.
I have a trigger that executes BEFORE any update or delete, and simply copy
the row (INSERT INTO)
On 09/12/2010 15:51, t...@fuzzy.cz wrote:
Hi, Im using Postgres 8.3 on a Macbook Pro Labtop.
I using the database with just one db connection to build a lucene
search index from some of the data, and Im trying to improve
performance. The key thing is that I'm only a single user but
manipulating
On Thu, Dec 9, 2010 at 5:25 AM, Paul Taylor ij...@fastmail.fm wrote:
Hi, Im using Postgres 8.3 on a Macbook Pro Labtop.
I using the database with just one db connection to build a lucene search
index from some of the data, and Im trying to improve performance. The key
thing is that I'm only a
I am getting the following error when trying to migrate a db from
8.4.0/FreeBSD 7.1 to 9.0.1/FreeBSD 8.1, both are VMware virtual machines
with FreeBSD amd64...
data1# psql -U pgsql template1 /data/maia.sql
snip
template1 /data/incoming.sql
ERROR: invalid byte sequence for encoding UTF8:
On Fri, Dec 10, 2010 at 1:24 AM, Gabi Julien gabi.jul...@broadsign.com wrote:
On Wednesday 08 December 2010 21:58:46 you wrote:
On Thu, Dec 9, 2010 at 1:37 AM, Gabi Julien gabi.jul...@broadsign.com
wrote:
slave# /etc/init.d/postgresql start
slave# psql -hlocalhost my_db -c select
I'm migrating a database from MySQL and need to keep the original `id` column
(AUTO_INCREMENT) intact so my plan is to create an simple integer `id` column,
import the data then convert the new `id` column to a SEQUENCE. Is this
possible/the best solution? Maybe a migration utility would be
On Fri, Dec 10, 2010 at 2:44 PM, gvim gvi...@gmail.com wrote:
I'm migrating a database from MySQL and need to keep the original `id`
column (AUTO_INCREMENT) intact so my plan is to create an simple integer
`id` column, import the data then convert the new `id` column to a SEQUENCE.
Is this
On Fri, Dec 10, 2010 at 2:53 PM, Shoaib Mir shoaib...@gmail.com wrote:
On Fri, Dec 10, 2010 at 2:44 PM, gvim gvi...@gmail.com wrote:
I'm migrating a database from MySQL and need to keep the original `id`
column (AUTO_INCREMENT) intact so my plan is to create an simple integer
`id` column,
Got the link.
http://wiki.postgresql.org/wiki/FAQ#What_is_the_maximum_size_for_a_row.2C_a_table.2C_and_a_database.3F
--
Thanks Regards
DJ
From: Jaiswal Dhaval Sudhirkumar
Sent: Thu 12/9/2010 10:07 PM
To: Jaiswal Dhaval Sudhirkumar;
I'm migrating a database from MySQL and need to keep the original `id` column
(AUTO_INCREMENT) intact so my plan is to create the `id` column, import the
data then convert the new `id` column to a SEQUENCE. Is this possible/the best
solution? Maybe a migration utility would be better?
On 12/09/10 7:36 PM, gvim wrote:
I'm migrating a database from MySQL and need to keep the original `id`
column (AUTO_INCREMENT) intact so my plan is to create the `id`
column, import the data then convert the new `id` column to a
SEQUENCE. Is this possible/the best solution? Maybe a migration
Dear all,
I am researched a lot about Performance tuning in Pgsql.
I found that we have to change shared_buffer parameter and
effective_cache_size parameter.
I changed shared_buffer to 2 GB but I can't able to locate
effective_cache_size parameter in postgresql.conf file.
Also i want to
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