Hello,
I need to generate unique id which is not guessable unlike
serial(integer) type. I need an id in format like md5 hash of random
number.
On top of that I need this id to be unique across multiple tables.
Anyone had to solve this problem before? Can you post any recipes or
best practices
Uuid?
Il giorno 29 gen, 2010 9:20 m., Joe Kramer cckra...@gmail.com ha
scritto:
Hello,
I need to generate unique id which is not guessable unlike
serial(integer) type. I need an id in format like md5 hash of random
number.
On top of that I need this id to be unique across multiple tables.
Hi,
On Friday 29 January 2010 09.20:33 Joe Kramer wrote:
I need to generate unique id which is not guessable unlike
serial(integer) type. I need an id in format like md5 hash of random
number.
On top of that I need this id to be unique across multiple tables.
Have a look at
On Fri, Jan 29, 2010 at 10:31, Adrian von Bidder avbid...@fortytwo.ch wrote:
Hi,
On Friday 29 January 2010 09.20:33 Joe Kramer wrote:
I need to generate unique id which is not guessable unlike
serial(integer) type. I need an id in format like md5 hash of random
number.
On top of that I
We have bunch of servers running the app and rebuilding postgres with
support for ossp_uuid on all servers is time consuming.
Is there a way of doing it without third party dependency like
ossp_uuid? Should I just run md5(random number), will itbe the same ?.
According to description it seems that
On Friday 29 January 2010 11.21:00 Joe Kramer wrote:
We have bunch of servers running the app and rebuilding postgres with
support for ossp_uuid on all servers is time consuming.
Is there a way of doing it without third party dependency like
ossp_uuid? Should I just run md5(random number),
On 29 Jan 2010, at 2:06, Yan Cheng Cheok wrote:
CREATE OR REPLACE FUNCTION insert_table()
RETURNS void AS
$BODY$DECLARE
_impressions_by_day impressions_by_day;
BEGIN
INSERT INTO impressions_by_day(impressions ) VALUES(888) RETURNING * INTO
_impressions_by_day;
RAISE NOTICE
On Fri, Jan 29, 2010 at 07:20:33PM +1100, Joe Kramer wrote:
I need to generate unique id which is not guessable unlike
serial(integer) type. I need an id in format like md5 hash of random
number.
check this blogpost:
http://www.depesz.com/index.php/2007/06/25/random-text-record-identifiers/
Thanks for the answer,
I am unable to use ossp_uuid due to package install and/or server
rebuild requirement.
So I am trying to roll my own, and
digest(quote_literal(random()+random()), 'sha256'), 'hex') doesn't
work:
I have created this table and inserted 20 rows (two million).
This is
On Friday 29 January 2010 12.51:20 Joe Kramer wrote:
So this means random()+random() is not random even within 2,000,000
iterations!
Exactly the issue I wrote about: random() apparently doesn't deliver enough
randomness.
Even if it did: quote_literal(random() + random()) is ca. 14 to 16
On 29 Jan 2010, at 1:56, Yan Cheng Cheok wrote:
Isn't the primary constraint will implicitly create an index for day already?
PRIMARY KEY (advertiser_id, day),
Yes, but it's not a very efficient index to look for values of day if you don't
provide a value for advertiser_id as well. See
On 2010-01-29, Joe Kramer wrote:
Thanks for the answer,
I am unable to use ossp_uuid due to package install and/or server
rebuild requirement.
So I am trying to roll my own, and
digest(quote_literal(random()+random()), 'sha256'), 'hex') doesn't
work:
Your input value is a random
On Fri, 29 Jan 2010 13:13:17 +0100
Wappler, Robert rwapp...@ophardt.com wrote:
I'd suggest to use some kind of sequence or something constructed
from the primary keys. But you may still see hash collisions
although the input is different.
Concatenate /* ::text */ random() with something like:
On 29/01/2010 4:20 PM, Joe Kramer wrote:
Hello,
I need to generate unique id which is not guessable unlike
serial(integer) type. I need an id in format like md5 hash of random
number.
On top of that I need this id to be unique across multiple tables.
Anyone had to solve this problem before?
Hi,
I would like to find an odbc driver for mac os x,
where I can find it?
Thanks to all
regards,
Enrico
--
That's one small step for man; one giant leap for mankind
--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
On Fri, Jan 29, 2010 at 1:29 PM, Enrico Pirozzi sscott...@gmail.com wrote:
Hi,
I would like to find an odbc driver for mac os x,
where I can find it?
Thanks to all
If you're running the one-click PG installer, you can install the ODBC
driver using StackBuilder.
--
Dave Page
EnterpriseDB
Hi there,
I'm looking to use the at time zone language feature, however the
results below don't really agree with my expectations. Is this a bug in 8.4 or
am I misinterpreting the results? If it is a bug, has it been fixed in the
development releases?
psql (8.4.0)
Type help for
On Friday 29 January 2010 5:34:04 am Andrew Crouch wrote:
Hi there,
I'm looking to use the at time zone language feature, however
the results below don't really agree with my expectations. Is this a bug
in 8.4 or am I misinterpreting the results? If it is a bug, has it been
fixed
-BEGIN PGP SIGNED MESSAGE-
Hash: RIPEMD160
While looking into a failed check_postgres check, I found a problem
with the canonical versions page here:
http://www.postgresql.org/versions.rss
It only goes back to 8.0, but as far as I know, 7.4 is not unsupported
yet, so that page should
(adding pgsql-www, isn't this more a www question than a general
postgresql usage question?)
2010/1/29 Greg Sabino Mullane g...@turnstep.com:
While looking into a failed check_postgres check, I found a problem
with the canonical versions page here:
http://www.postgresql.org/versions.rss
Le 29/01/2010 15:51, Magnus Hagander a écrit :
(adding pgsql-www, isn't this more a www question than a general
postgresql usage question?)
2010/1/29 Greg Sabino Mullane g...@turnstep.com:
While looking into a failed check_postgres check, I found a problem
with the canonical versions
Thank you for the reply.
After 3 hours trials and reading the source code of Postgres backend, now I
can figure out a way to transfer float data from sever to client and then
write back to server *without lose any precision*.
At server part, it uses strtod to convert received string to float
Mike Bresnahan wrote:
I can understand that I will not get as much performance out of a EC2 instance
as a dedicated server, but I don't understand why top(1) is showing 50% CPU
utilization. If it were a memory speed problem wouldn't top(1) report 100% CPU
utilization?
A couple of points:
top
On Fri, Jan 29, 2010 at 2:53 PM, Guillaume Lelarge
guilla...@lelarge.info wrote:
Le 29/01/2010 15:51, Magnus Hagander a écrit :
(adding pgsql-www, isn't this more a www question than a general
postgresql usage question?)
2010/1/29 Greg Sabino Mullane g...@turnstep.com:
While looking into
On 1/28/2010 5:51 PM, Pierre Chevalier wrote:
while ( my @list = $get-fetchrow_array)
{
print join(',', @list), \n;
}
It throws some insulting messages, though:
Use of uninitialized value $list[5] in join or string at
./crosstab_perl.pl line 24.
Use of uninitialized value $list[6] in join
On Fri, 2010-01-29 at 15:08 +, Dave Page wrote:
Perhaps because you only display five releases in the Latest
Releases
part of the front page? which means 8.0 to 8.4.
Yes. iirc, that was the reason.
Is it possible to add all (7.3+) versions to versions.rss, but show only
top 5
i have to clean a table that looks like so:
create table test (sn integer, fname varchar(10), lname varchar(10));
insert into test values (1, 'adam', 'lambert');
insert into test values (2, 'john', 'mayer');
insert into test values (3, 'john', 'mayer');
insert into test values (4, 'mary', 'kay');
On Fri, 2010-01-29 at 17:49 +0200, Devrim GÜNDÜZ wrote:
On Fri, 2010-01-29 at 15:08 +, Dave Page wrote:
Perhaps because you only display five releases in the Latest
Releases
part of the front page? which means 8.0 to 8.4.
Yes. iirc, that was the reason.
Is it possible to add
On Fri, 2010-01-29 at 08:44 -0800, Joshua D. Drake wrote:
Is it possible to add all (7.3+) versions to versions.rss, but show
only
top 5 versions?
7.3 is not supported.
I know. But it would be a chance to remind people to upgrade their
installations.
--
Devrim GÜNDÜZ, RHCE
Command
2010/1/29 Devrim GÜNDÜZ dev...@gunduz.org:
On Fri, 2010-01-29 at 15:08 +, Dave Page wrote:
Perhaps because you only display five releases in the Latest
Releases
part of the front page? which means 8.0 to 8.4.
Yes. iirc, that was the reason.
Is it possible to add all (7.3+) versions
On 29/01/2010 16:40, zach cruise wrote:
i have to clean a table that looks like so:
create table test (sn integer, fname varchar(10), lname varchar(10));
insert into test values (1, 'adam', 'lambert');
insert into test values (2, 'john', 'mayer');
insert into test values (3, 'john',
On Fri, 2010-01-29 at 18:50 +0200, Devrim GÜNDÜZ wrote:
On Fri, 2010-01-29 at 08:44 -0800, Joshua D. Drake wrote:
Is it possible to add all (7.3+) versions to versions.rss, but show
only
top 5 versions?
7.3 is not supported.
I know. But it would be a chance to remind people to
-BEGIN PGP SIGNED MESSAGE-
Hash: RIPEMD160
yet, so that page should be listing 7.4.27. Further, shouldn't we be keeping
even 'unsupported' versions on this page, so (e.g. case of check_postgres.pl)
clients
In an attempt to determine whether top(1) is lying about the CPU utilization, I
did an experiment. I fired up a EC2 c1.xlarge instance and ran pgbench and a
tight loop in parallel.
-bash-4.0$ uname -a
Linux domu-12-31-39-00-8d-71.compute-1.internal 2.6.31-302-ec2 #7-Ubuntu SMP Tue
Oct 13 19:55:22
Hi:
PG V8.3.4 running on Linux.
I have a DB with a bunch of users attached as gleaned from ps auxww | grep
postgres. How can I learn more about these users, who they are if coming in
via the net, what kind of resources they are using, what they are running, how
I can kill them?
I'm open to
Well.. the quick and dirty start would be:
SELECT * FROM pg_stat_activity;
As for a good management tool, I would recommend pgAdmin3:
http://www.pgadmin.org/
- Chris
On 01/29/2010 12:34 PM, Gauthier, Dave wrote:
Hi:
PG V8.3.4 running on Linux.
I have a DB with a
top is not the be-all and end-all of analysis tools. I'm sure you
know that, but it bears repeating.
More importantly, in a virtualised environment the tools on the inside
of the guest don't have a full picture of what's really going on.
Indeed, you have hit the nail on the head.
does
Hi Adrian,
Thanks for your reply. However, I still don't fully understand why
SET TIMEZONE TO and AT TIME ZONE behave differently. Morever the
/usr/share/pgsql/timezonesets/America.txt (POSIX) specifies the BRST timezone
with a two hour negative offset. Unless I'm missing something
Is it possible to set postgres in case insensitive mode ?
If so, how?
Thanks / Moe
On Fri, 2010-01-29 at 23:52 +0200, Moe wrote:
Is it possible to set postgres in case insensitive mode ?
I assume you mean the issue where postgres folds all case of objects to
lower if they are not . No.
Joshua D. Drake
--
PostgreSQL.org Major Contributor
Command Prompt, Inc:
In response to Moe mohamed5432154...@gmail.com:
Is it possible to set postgres in case insensitive mode ?
If so, how?
Keywords are always case-insensitive.
Identifiers are case-insensitive unless you surround them with .
Strings are case-sensitive unless you use ILIKE or similar methods
of
Hi all,
What's the proper way to store directory path strings in a table,
especially ones with backslashes like windows?
I'm currently using a prepared statement with bind value. Do I need
to pre-parse all user entries to identify any backslash characters
before passing the string to
2010/1/29 Scott Frankel lekn...@pacbell.net:
Hi all,
What's the proper way to store directory path strings in a table, especially
ones with backslashes like windows?
I'm currently using a prepared statement with bind value. Do I need to
pre-parse all user entries to identify any backslash
On Friday 29 January 2010 1:04:59 pm Andrew Crouch wrote:
Hi Adrian,
Thanks for your reply. However, I still don't fully understand
why SET TIMEZONE TO and AT TIME ZONE behave differently. Morever the
/usr/share/pgsql/timezonesets/America.txt (POSIX) specifies the BRST
timezone
On Fri, 2010-01-29 at 09:25 -0800, Joshua D. Drake wrote:
I know. But it would be a chance to remind people to upgrade their
installations.
An arbitrary listing won't do that.
Depends.
--
Devrim GÜNDÜZ, RHCE
Command Prompt - http://www.CommandPrompt.com
devrim~gunduz.org,
Excellent! Mild testing so far, but it seems to work. Thanks!
Scott
On Jan 29, 2010, at 3:00 PM, Cédric Villemain wrote:
2010/1/29 Scott Frankel lekn...@pacbell.net:
Hi all,
What's the proper way to store directory path strings in a table,
especially
ones with backslashes like
Thanks for that link Depesz!
It worked, I've run ALTER TABLE with your function and didn't have collisions.
I guess it's more bulletproof because random() is called not once, but
for every character therefore reducing possibility of collision by
multitude of number of bytes in hash.
CREATE OR
On Fri, Jan 29, 2010 at 2:52 PM, Moe mohamed5432154...@gmail.com wrote:
Is it possible to set postgres in case insensitive mode ?
If so, how?
What part, exactly, do you want to be case insensitive? I assume you
mean a text / varchar type? Look for citext, I believe it's a contrib
module,
On Fri, Jan 29, 2010 at 7:40 PM, Scott Marlowe scott.marl...@gmail.com wrote:
On Fri, Jan 29, 2010 at 2:52 PM, Moe mohamed5432154...@gmail.com wrote:
Is it possible to set postgres in case insensitive mode ?
If so, how?
What part, exactly, do you want to be case insensitive? I assume you
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