Hi,
postgresql 8.4 (tuned, analyzed, and so on)
we had trouble with one query executing too slow. After checking out
some alternatives we encountered that dropping a rather useless second
parameter on order by the execution time dropped dramatically.
This is our original query with 2 order
No, this database is on a single machine, but a very powerful one.
Processors with 16 cores each and ssd disks.
I already use partitioning and tablespaces for every instance of my db
and I gain a lot with my splitted configuration.
My db is pretty huge: 600 milions of records and partitioning
For shure my life is more complex with this configuration :-D
But the performance tests that I performed (described in the prevoius
thread) tell me that this is a good way...
Otherwise you probably didn't gain anything
by splitting your database up like that - you've just reduced the
available
To be clear about the 2 passwords involved with Postgres on your Mac:
• The installer asks for your usual Mac admin account password, to get
permission for 2 operations: (1) to install stuff on your computer and (2)
to create a special Unix user account named (by default) 'postgres'.
Thanks a lot, guys. There were two users running Navicat, and these killer
queries are indeed run by this program.
Rubén.
2011/2/13 John R Pierce pie...@hogranch.com
On 02/12/11 5:11 PM, Ruben Blanco wrote:
Hi:
I'm running a Postgres database with a total disk occupation of 100Gb,
largest
I have read http://www.postgresql.org/docs/9.0/static/xfunc-c.html, but
it is not clear to me how to implement a function which retrieve a set
of rows.
In the example given it seems that I have to recall my function for
every row, but this is not what I want.
With libpq I can perform a query
On Mon, Feb 14, 2011 at 7:41 AM, Alessandro Candini cand...@meeo.it wrote:
I have read http://www.postgresql.org/docs/9.0/static/xfunc-c.html, but it
is not clear to me how to implement a function which retrieve a set of rows.
In the example given it seems that I have to recall my function for
On Mon, Feb 7, 2011 at 3:15 PM, Julia Jacobson julia.jacob...@arcor.de wrote:
Dear PostgreSQL community,
Please consider the following minimal example:
CREATE TABLE example (row_id SERIAL, value TEXT);
INSERT INTO example(value) VALUES ('val1');
INSERT INTO example(value) VALUES ('val2');
2011/2/14 Merlin Moncure mmonc...@gmail.com
On Mon, Feb 7, 2011 at 3:15 PM, Julia Jacobson julia.jacob...@arcor.de
wrote:
Dear PostgreSQL community,
Please consider the following minimal example:
CREATE TABLE example (row_id SERIAL, value TEXT);
INSERT INTO example(value) VALUES
Hi.
Is it possible to log plans which planner discard?
I want to tune planner settings for some queries.
--
pasman
--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general
I've executed the following in a clean database:
As postgres/superuser:
CREATE ROLE impotent NOLOGIN;
CREATE FUNCTION testfunc() RETURNS boolean AS $$
BEGIN
RETURN true;
END;
$$ LANGUAGE 'plpgsql';
REVOKE ALL ON FUNCTION testfunc() FROM impotent;
SET ROLE impotent;
David Johnston pol...@yahoo.com writes:
REVOKE ALL ON FUNCTION testfunc() FROM impotent;
This does not get rid of the default public execute permissions on the
function. To limit execute rights, you first have to
REVOKE ALL ON FUNCTION testfunc() FROM PUBLIC;
and then grant rights back to the
Greetings guys,
I am running PostgreSQL 8.4, my database is 60GB. My problem is that
there are some queries run extremely fast (when bitmap scan is used),
while others take more than 600secs to respond (when seq scan is used).
Here is a sample of the queries which uses seq scan...
You cannot ALWAYS do an indexed scan - sometimes the only option for the
parser is to do a sequential scan (thus you can say avoid unless you have
to but you can never truly disable sequential scanning).
Given limited knowledge of full-text searching I cannot explain why this
specific query is
On Mon, Feb 14, 2011 at 11:57 AM, David Johnston pol...@yahoo.com wrote:
You cannot ALWAYS do an indexed scan - sometimes the only option for the
parser is to do a sequential scan (thus you can say avoid unless you have
to but you can never truly disable sequential scanning).
Does this
Jon Nelson jnelson+pg...@jamponi.net writes:
Does this suggest that the config items disable_seqscan (and friends)
should be renamed to avoid_seqscan ?
Some of them actually are disable, some are only avoid. The
documentation says which is which, but I don't think creating a
distinction at the
On 14 Feb 2011, at 9:38, Alessandro Candini wrote:
I performed tests with a query returning more or less 10 records and
using my C module I obtain the following results (every test performed
cleaning cache before):
- single db: 9.555 sec
- splitted in 4: 5.496 sec
Is that a single
i was using holdem manager and my for some reason it said that i coudlnt
connect
to my postgres so i tried uninstalling postgres and installing it again, but i
received a message saing that i could connect to the logon server please help i
have team viewer if anyone can help me
On Mon, Feb 14, 2011 at 10:38 AM, Alessandro Candini cand...@meeo.it wrote:
No, this database is on a single machine, but a very powerful one.
Processors with 16 cores each and ssd disks.
I already use partitioning and tablespaces for every instance of my db and I
gain a lot with my splitted
On Mon, Feb 14, 2011 at 8:37 AM, Dmitriy Igrishin dmit...@gmail.com wrote:
2011/2/14 Merlin Moncure mmonc...@gmail.com
On Mon, Feb 7, 2011 at 3:15 PM, Julia Jacobson julia.jacob...@arcor.de
wrote:
Dear PostgreSQL community,
Please consider the following minimal example:
CREATE TABLE
After creating and logging into a new database run this script. The
initial ALTER DEFAULT PRIVILEGES should make all users unable to execute
functions unless given explicit permissions elsewhere. However, the first
call to testfunc() succeeds. When I explicitly REVOKE ALL for the
specific
Hi!
I was trying to build PostgreSQL 9.0.1 using VS2008. I am having problems
building the C extensions. I could build the main package, though.
Although, I can get a DLL by including the header files from postgres, that
DLL is quite not usable. When I try to create a function inside
psql, I
David Johnston pol...@yahoo.com writes:
After creating and logging into a new database run this script. The
initial ALTER DEFAULT PRIVILEGES should make all users unable to execute
functions unless given explicit permissions elsewhere.
You haven't read the fine manual very closely. It saith
Hey folks,
I've got a table of historical events that 10 million rows over 18+ months.
Currently there is an index for the event timestamp. I'm wondering if
someone can respond to my curiosity regarding the performance of indexes
(BTree).
Would creating an index on the timestamp truncated to
On 2011-02-07, A B gentosa...@gmail.com wrote:
Hello.
How do you create an index for only some of the rows in a table? I
read in the docs:
The expression used in the WHERE clause can refer only to columns of
the underlying table, but it can use all columns, not just the ones
being
I understand now; it wasn't the reading that was causing me problems it was
figuring out the implications of the structure of the default privileges
system.
I suggest that ALTER DEFAULT PRIVILEGES (and probably REVOKE) raise a notice
when attempting to REVOKE a [DEFAULT] PRIVILEGE that does not
On 15/02/11 00:55, Edwin Giraldo wrote:
i was using holdem manager and my for some reason it said that i coudlnt
connect to my postgres so i tried uninstalling postgres and installing
it again, but i received a message saing that i could connect to the
logon server please help i have team
On 15/02/11 06:28, deepak wrote:
Hi!
I was trying to build PostgreSQL 9.0.1 using VS2008. I am having
problems building the C extensions. I could build the main package, though.
The easiest way to do it on Windows is to make a new `contrib' module
and compile as part of the main build.
hi,
We are going to design database for a large company, which has many
branches. In each branch they maintain data separately and also they
maintain year wise data. ie
Company
|
Branch
|
Yearly
Also we need to compare and prepare reports by combine all branched data.
How should
On 02/14/11 10:45 PM, Kalai R wrote:
hi,
We are going to design database for a large company, which has many
branches. In each branch they maintain data separately and also they
maintain year wise data. ie
Company
|
Branch
|
Yearly
Also we need to compare and prepare reports
Hi Kalai,
From the vagueness of your question, it sounds like you need a DBA to
design the database.
But basically you need to put the branch id as a foreign key in all data
tables and then you can generate reports grouped by date or portion
thereof, branch or company.
Sim
On
31 matches
Mail list logo
