Kirk Wythers wrote:
I am struggling to get a CASE WHEN statement to work within another
CASE WHEN. Here is my original code:
SELECT CASE WHEN w.station_id = site_near.station_id THEN w.obs_id
ELSE
s.obs_id END AS obs_id, site_near.station_id, site_near.longname,
w.year, w.doy, w.precip,
On 5/9/07, Ashish Karalkar [EMAIL PROTECTED] wrote:
Hello All,
Hi,
Can anybody please point me to Advantages and Disadvantages
of using view
The most obvious advantage (for me, anyway) is to restrict which
columns a user can see in a table.
I'm sure there are others.
With Regards
Jasbinder Singh Bali [EMAIL PROTECTED] schrieb:
I'm writing a function in plpgsql and i need to do the following:
I have a string in the following format.
mail.yahoo.com
In this string, i need to figure out the number of dots in it and
split the
string into two on last but one dot.
Sic Transit Gloria Mundi writes:
I would like to use Perl, DBI, and DBD::Pg on AIX. As I
understand it, I need a shared lib version of the client libs
for this.
When building on AIX5.3 ML04 (powerpc_power5, 64 bit), it
seems only the static libraries are built. This seems true
with
Thanks Andrej
for your replay
I have found out some of them n are as follows, but I want more reasons
for not using views . I only got one
Advantages:
1) Permission to user can be given to access the database only
through view containing specific data the user is authorized to see
hi all
I am developing web site use database is PostGres and now i must build
function backup and Restore database on Web
My web develop on framework 2.0(asp.net 2.0)
I know have two file on forder bin use backup and restore is: pg_restore.exe
, pg_dump.exe
I have plan is write function or
Thanks Brent for your replay,
What about the Disadvantages, Performance issues?
With Regards
Ashish...
- Original Message -
From: [EMAIL PROTECTED]
To: Postgres General pgsql-general@postgresql.org
Cc: Ashish Karalkar [EMAIL PROTECTED]
Sent: Wednesday, May 09, 2007 1:24 PM
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 02:16, Ashish Karalkar wrote:
[snip]
Disadvantages:
1) Performance : If a view is defined by complex multitable
query,then simple query against that view becomes a coplecated
join, and it may take a long time to complete
I
On 5/9/07, Ron Johnson [EMAIL PROTECTED] wrote:
1) Performance : If a view is defined by complex multitable
query,then simple query against that view becomes a coplecated
join, and it may take a long time to complete
I don't see that as relevant, since we know which objects are tables
Thanks All for your replies,
But then dont we have any disadvantage of using View???
With Reagrds
Ashish...
- Original Message -
From: Andrej Ricnik-Bay [EMAIL PROTECTED]
To: Ron Johnson [EMAIL PROTECTED]
Cc: pgsql-general@postgresql.org
Sent: Wednesday, May 09, 2007 2:03 PM
On mið, 2007-05-09 at 12:46 +0530, Ashish Karalkar wrote:
I have found out some of them n are as follows, but I want more reasons
for not using views . I only got one
Disadvantages:
1) Performance : If a view is defined by complex multitable query,then
simple query against that
Am Dienstag, 8. Mai 2007 18:09 schrieb Andreas:
Do you know where I find PG 8.2.4 and pgAdmin 1.6.3 binaries for Debian
4.0.x ?
Right now you can't, at least not from official or semiofficial sources. I
expect in a few weeks time, backports will show up on backports.org.
--
Peter Eisentraut
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 03:36, Ashish Karalkar wrote:
Thanks All for your replies,
But then dont we have any disadvantage of using View???
You can't insert into multi-table views.
- --
Ron Johnson, Jr.
Jefferson LA USA
Give a man a fish, and he eats for a
Ok. That is on insert update delete part.
ant disadvantage on select part?
With Regards
Ashish...
- Original Message -
From: Ron Johnson [EMAIL PROTECTED]
To: pgsql-general@postgresql.org
Sent: Wednesday, May 09, 2007 2:18 PM
Subject: Re: [GENERAL] Views- Advantages and Disadvantages
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 03:48, Ashish Karalkar wrote:
Ok. That is on insert update delete part.
ant disadvantage on select part?
Performance-wise? No.
Both an advantage and disadvantage of views is that it codifies
certain queries in the database.
P.S. -
Hi,
I'm trying to implement a forum with mason and postgresql. What is the
typical database schema of a forum (threaded or flat) application?
Thanks,
---(end of broadcast)---
TIP 6: explain analyze is your friend
On 09.05.2007 09:45, anhtin wrote:
hi all
I am developing web site use database is PostGres and now i must build
function backup and Restore database on Web
My web develop on framework 2.0(asp.net 2.0)
I know have two file on forder bin use backup and restore is: pg_restore.exe
, pg_dump.exe
I
On 09.05.2007 10:43, Peter Eisentraut wrote:
Right now you can't, at least not from official or semiofficial sources. I
expect in a few weeks time, backports will show up on backports.org.
.. and this is what people consider `stable' then? Hacked versions of
applications somehow made to work
On Tue, 08 May 2007 10:03:24 -0400
Tom Lane [EMAIL PROTECTED] wrote:
* the FKCONSTR_MATCH_xxx constants defined in parsenodes.h.
True! ;-)
Thank you so much.
Felix
---(end of broadcast)---
TIP 6: explain analyze is your friend
On Tue, 8 May 2007 15:54:08 +0200
Martijn van Oosterhout [EMAIL PROTECTED] wrote:
A unique index is not a substitute for a unique constraint, they're
exactly the same thing. If you drop your constraint and create a
unique index, you're back where you started. You neither added nor
removed
thanks reply for me
but have propblem:
the function pg_start_backup()
i dont run this function
Can u send me example is a procedure or function can backup and restore for
me
--
View this message in context:
http://www.nabble.com/backup-and-restore-tf3714247.html#a10391372
Sent from the
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 04:33, Hannes Dorbath wrote:
On 09.05.2007 10:43, Peter Eisentraut wrote:
Right now you can't, at least not from official or semiofficial
sources. I expect in a few weeks time, backports will show up on
backports.org.
.. and this
I have written a little PHP+postgres forum for benchmarking purposes, to
see how fast postgres could go.
It has basic forum features, like forums (duh), topics, posting,
pagination, watching topics, topic post count, display newest topic and
post in topic forum pages, templates, topics
Le mardi 08 mai 2007, Andreas a écrit :
Do you know where I find PG 8.2.4 and pgAdmin 1.6.3 binaries for Debian
4.0.x ?
For server-side debian stable, you can build yourself the package by simply
following those steps :
1. have your deb-src line (from /etc/apt/sources.list) point to sid
2.
I am planning to set up a new solaris 10 sparc server with a postgresql
database.
It looks like solaris 10 comes with version 8.1.8 of postgres.
Is there any benefit in using the 8.1.8 included solaris version over the
current release.
The sun site mentions several enhancement to the solaris
Thanks for your response, Andrew.
On Tue, 8 May 2007, Andrew Sullivan wrote:
On Fri, May 04, 2007 at 08:54:10AM -0600, Joel Dice wrote:
My next question is this: what are the dangers of turning fsync off in the
context of a high-availablilty cluster using asynchronous replication?
My real
Thanks for the replies and help everyone...
On 5/8/07, Rich Shepard [EMAIL PROTECTED] wrote:
On Tue, 8 May 2007, Scott Marlowe wrote:
Is there a version of PostgreSql that can be embedded with an
application?
Nope, and it's not real likely to happen. Take a look at sqllite.
Yes,
Hello!
I'm new to Postgresql and I did make some import with about 2.8
Mio with normal insert commands.
Config was (difference from default config):
listen_addresses = '*'
temp_buffers = 20MB# min 800kB
work_mem = 20MB# min 64kB
Hi all,
how can I make user restrictions to commands like \du; \l; \dn. Is
it possible???
Thanks in advance!
EBMB.
---(end of broadcast)---
TIP 2: Don't 'kill -9' the postmaster
Hello dear postgres community, I'm having a bad time with an issue
that I haven't been able to solve with my database, the problem is
this:
Whenever I try to save a word containing special characters in it
(for example áéíóú) I get the following django error:
invalid byte sequence for encoding
On 5/9/07, Ashish Karalkar [EMAIL PROTECTED] wrote:
Hello All,
Can anybody please point me to Advantages and Disadvantages
of using view
Hi Ashish,
There are several, but they are generally about implementing a more user
friendly database from a well normalised structure.
You can use
In response to Joel Dice [EMAIL PROTECTED]:
Thanks for your response, Andrew.
On Tue, 8 May 2007, Andrew Sullivan wrote:
On Fri, May 04, 2007 at 08:54:10AM -0600, Joel Dice wrote:
My next question is this: what are the dangers of turning fsync off in the
context of a
Am Dienstag, 8. Mai 2007 19:20 schrieb Gerard M:
Whenever I try to save a word containing special characters in it
(for example áéíóú) I get the following django error:
invalid byte sequence for encoding UTF8: 0xe92020 HINT: This error
can also happen if the byte sequence does not match the
[snip] Take the example of a query UPDATE tablename SET x = x + 1.
When this query is erroneously issued twice, data corruption will occur.
Huh ? I thought slony is replicating data, not queries... what on the
master is UPDATE tablename SET x = x + 1 will translate to UPDATE
tablename SET x =
In response to Csaba Nagy [EMAIL PROTECTED]:
[snip] Take the example of a query UPDATE tablename SET x = x + 1.
When this query is erroneously issued twice, data corruption will occur.
Huh ? I thought slony is replicating data, not queries... what on the
master is UPDATE tablename SET x =
This may be a question for -hackers, but I don't like disturbing them
unnecessarily.
I've been having a look at memcached. I would like to ask, is there any
reason that, theoretically, a similar caching system could be built
right into the db serving daemon?
I.e., the hash tables and libevent
Dimitri Fontaine wrote:
Le mardi 08 mai 2007, Andreas a écrit :
Do you know where I find PG 8.2.4 and pgAdmin 1.6.3 binaries for Debian
4.0.x ?
For server-side debian stable, you can build yourself the package by simply
following those steps :
1. have your deb-src line (from
On 5/9/07, Ashish Karalkar [EMAIL PROTECTED] wrote:
Thanks Brent for your replay,
What about the Disadvantages, Performance issues [of views]
Views are pretty much neutral from a performance perspective. There
are certain small considerations here and there to think about but you
should
I still wouldn't trust Slony with fsync off. Another scenario would be
the Slony trigger writes a change to the Slony DB, the db crashes before
it gets committed to disk. When the DB is started, no errors prevent
startup, but that transaction is lost.
I'm not sure, but I think the
Felix Kater [EMAIL PROTECTED] writes:
On Tue, 8 May 2007 15:54:08 +0200
Martijn van Oosterhout [EMAIL PROTECTED] wrote:
A unique index is not a substitute for a unique constraint, they're
exactly the same thing.
Yes. For this reason I didn't have to implement *both* 'unique
constraints'
On May 9, 2007, at 9:13 , Naz Gassiep wrote:
I've been having a look at memcached. I would like to ask, is there
any
reason that, theoretically, a similar caching system could be built
right into the db serving daemon?
This is all a bit above my head, but have you looked at pgmemcached?
On my CentOS 5.0 box with the RHEL version of Postgresql 8.4.2, the
initial initdb step fails with the error
WARNING: cold not read time zone file Default : permission denied.
FATAL: invalid value for parameter timezone_abbreviations: Default
A search of the mail list and google showed this
Gerhard Wiesinger [EMAIL PROTECTED] writes:
LOG: could not fsync segment 0 of relation 1663/16386/42726: Input/output
error
[ raised eyebrow... ] I think your machine is flakier than you believe.
This error is particularly damning, but the general pattern of weird
failures all over the place
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 09:13, Alvaro Herrera wrote:
[snip]
I tried it here and it didn't work because it only has packages for
i386, and my system is amd64. However, I got it by source with
Your build environment is somehow broken.
The same deb-src should
Ron Johnson wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 09:13, Alvaro Herrera wrote:
[snip]
I tried it here and it didn't work because it only has packages for
i386, and my system is amd64. However, I got it by source with
Your build environment is somehow
On 09.05.2007 16:51, Wade Hampton wrote:
On my CentOS 5.0 box with the RHEL version of Postgresql 8.4.2, the
Hey, that's what I call bleeding edge ;)
initial initdb step fails with the error
WARNING: cold not read time zone file Default : permission denied.
FATAL: invalid value for
On 09.05.2007 16:13, Naz Gassiep wrote:
This may be a question for -hackers, but I don't like disturbing them
unnecessarily.
I've been having a look at memcached. I would like to ask, is there any
reason that, theoretically, a similar caching system could be built
right into the db serving
Wade Hampton [EMAIL PROTECTED] writes:
On my CentOS 5.0 box with the RHEL version of Postgresql 8.4.2, the
initial initdb step fails with the error
WARNING: cold not read time zone file Default : permission denied.
FATAL: invalid value for parameter timezone_abbreviations: Default
Here is a more elaborate version, I'm trying to add 'avgsol' to
your original FROM clause:
SELECT CASE WHEN w.station_id = site_near.station_id THEN
w.obs_id ELSE
s.obs_id END AS obs_id, site_near.station_id, site_near.longname,
w.year, w.doy, w.precip, w.tmin, w.tmax,
--replace missing
Naz Gassiep [EMAIL PROTECTED] writes:
I.e., the hash tables and libevent could sit on top of postmaster as an
optional component caching data on a per-query basis and only hitting
the actual db in the event of a cache miss?
How does the cache know when the database contents change?
On May 9, 2007, at 10:32 AM, Kirk Wythers wrote:
Here is a more elaborate version, I'm trying to add 'avgsol' to
your original FROM clause:
SELECT CASE WHEN w.station_id = site_near.station_id THEN
w.obs_id ELSE
s.obs_id END AS obs_id, site_near.station_id, site_near.longname,
w.year,
Looks like a problem specific to FreeBSD. I use Centos/postgres 8.2.3
and I do not see that problem at all.
Dhaval
On 5/8/07, Jeff Davis [EMAIL PROTECTED] wrote:
On Tue, 2007-05-08 at 13:24 -0400, Merlin Moncure wrote:
On 5/8/07, Jeff Davis [EMAIL PROTECTED] wrote:
On Tue, 2007-05-08 at
Hello Tom!
I don't think this is a hardware problem. Machine runs 24/7 for around 4
years without any problems, daily backup with GBs of data to it,
uptimes to the next kernel security patch, etc.
The only problem I could believe is:
I'm running the FC7 test packages of postgresql in FC6 and
Gerhard Wiesinger [EMAIL PROTECTED] writes:
The only problem I could believe is:
I'm running the FC7 test packages of postgresql in FC6 and maybe there is
a slight glibc library conflict or any other incompatibility.
Hmm, I'd be suspicious of that too. You'd be well advised to take the FC7
On May 9, 2007, at 10:41 AM, Erik Jones wrote:
On May 9, 2007, at 10:32 AM, Kirk Wythers wrote:
Here is a more elaborate version, I'm trying to add 'avgsol' to
your original FROM clause:
SELECT CASE WHEN w.station_id = site_near.station_id THEN
w.obs_id ELSE
s.obs_id END AS obs_id,
Actually, looking at the docs, the problem is with some versions of
GNU tar. AFAIK bsdtar is perfectly happy to archive files that have
changed from underneath it.
On May 9, 2007, at 10:45 AM, Dhaval Shah wrote:
Looks like a problem specific to FreeBSD. I use Centos/postgres 8.2.3
and I do
On 5/9/07, Tom Lane [EMAIL PROTECTED] wrote:
Wade Hampton [EMAIL PROTECTED] writes:
On my CentOS 5.0 box with the RHEL version of Postgresql 8.4.2, the
initial initdb step fails with the error
WARNING: cold not read time zone file Default : permission denied.
FATAL: invalid value for
The build of rhel src rpm failed due to This platform is not thread
safe. Check the file 'config.lg' fo rthe exact reason.
For now I am going back to 8.1.8 that came with CentOS 5.
Thanks,
--
Wade Hampton
---(end of broadcast)---
TIP 2: Don't
On Wed, 2007-05-09 at 11:40 -0500, Jim Nasby wrote:
Actually, looking at the docs, the problem is with some versions of
GNU tar. AFAIK bsdtar is perfectly happy to archive files that have
changed from underneath it.
$ tar --version
bsdtar 1.2.53 - libarchive 1.3.1
That fails to create a
Hannes Dorbath wrote:
I think this is close to what MySQL's query cache does. The question
is if this should be the job of the DBMS and not another layer. At
least the pgmemcache author and I think that it's better done outside
the DBMS. See
Naz Gassiep wrote:
Hannes Dorbath wrote:
I think this is close to what MySQL's query cache does. The question
is if this should be the job of the DBMS and not another layer. At
least the pgmemcache author and I think that it's better done outside
the DBMS. See
This is exactly what I was asking about. So my theoretical idea has
already been implemented. Now if only *all* my ideas were done for me by
the time I came up with them :)
Then you wouldn't be able to eventually patent them ;)
What an un-BSD licensish thing to say :P
Wade Hampton [EMAIL PROTECTED] writes:
On 5/9/07, Tom Lane [EMAIL PROTECTED] wrote:
Anyway, having been burnt before I always wonder about SELinux whenever
any strange permission failures turn up on recent RHEL/Fedora systems.
SELinux is off and there were no avc denied messages in
On May 9, 2007, at 4:36 AM, Ashish Karalkar wrote:
Thanks All for your replies,
But then dont we have any disadvantage of using View???
With Reagrds
Ashish...
I once inherited a database that made extensive use of constants in
views (a la magic numbers) as well as had several
This may be a question for -hackers, but I don't like disturbing them
unnecessarily.
I've been having a look at memcached. I would like to ask, is there any
reason that, theoretically, a similar caching system could be built
right into the db serving daemon?
I.e., the hash tables and libevent
I have recommended many, many folks to the referential integrity flash
tutorial that was posted in the old tech docs, whether ot not they were
using PostgreSQL. Does anyone know where the tutorial was moved to???
the old address was
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Ashish Karalkar
Sent: Wednesday, May 09, 2007 1:36 AM
To: Andrej Ricnik-Bay; Ron Johnson
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Views- Advantages and Disadvantages
Hi Manuel,
Just replying to say a big thank you ... I compiled the C extension with the
code you , did all the necessary logic and finally solved it. Thank you very
much for your help!
Thank you also to all the other who helped me!
Marcelo.
On 4/24/07, Manuel Sugawara [EMAIL PROTECTED] wrote:
On May 9, 2007, at 14:02 , Dann Corbit wrote:
Views can hide important information from the optimizer (especially
index information).
Really? AIUI, views—at least in PostgreSQL—are implemented using
PostgreSQL's rule system: the entire query is rewritten to include
the view query, and
* Marcelo de Moraes Serpa [EMAIL PROTECTED] [20070509 21:14]:
Just replying to say a big thank you ...
I compiled the C extension with the
code you , did all the necessary logic and finally solved it. Thank you very
much for your help!
I second that!
I finally settled with the simpler
-Original Message-
From: Michael Glaesemann [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 09, 2007 12:14 PM
To: Dann Corbit
Cc: Ashish Karalkar; Andrej Ricnik-Bay; Ron Johnson; pgsql-
[EMAIL PROTECTED]
Subject: Re: [GENERAL] Views- Advantages and Disadvantages
On May 9, 2007,
On May 8, 2007, at 1:10 PM, ebmb wrote:
how can I make user restrictions to commands like \du; \l; \dn. Is
it possible???
No. If you a user connect directly to the database, they can query
the system catalogs. So even if you somehow disabled the psql
command, they could still execute
Dann Corbit wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Ashish Karalkar
Sent: Wednesday, May 09, 2007 1:36 AM
To: Andrej Ricnik-Bay; Ron Johnson
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Views- Advantages and
Views can hide important information from the optimizer (especially
index information).
Really? AIUI, views-at least in PostgreSQL-are implemented using
PostgreSQL's rule system: the entire query is rewritten to include
the view query, and the optimizer sees the rewritten query. What the
On Wed, 2007-05-09 at 08:26 -0600, Scott Ribe wrote:
I still wouldn't trust Slony with fsync off. Another scenario would be
the Slony trigger writes a change to the Slony DB, the db crashes before
it gets committed to disk. When the DB is started, no errors prevent
startup, but that
On Wed, 2007-05-09 at 11:18, Gerhard Wiesinger wrote:
Hello Tom!
I don't think this is a hardware problem. Machine runs 24/7 for around 4
years without any problems, daily backup with GBs of data to it,
uptimes to the next kernel security patch, etc.
The only problem I could believe is:
On Wed, May 09, 2007 at 10:29:02AM -0700, Joshua D. Drake wrote:
This is exactly what I was asking about. So my theoretical idea has
already been implemented. Now if only *all* my ideas were done for me by
the time I came up with them :)
Then you wouldn't be able to eventually patent them
Karsten Hilbert wrote:
On Wed, May 09, 2007 at 10:29:02AM -0700, Joshua D. Drake wrote:
This is exactly what I was asking about. So my theoretical idea has
already been implemented. Now if only *all* my ideas were done for me by
the time I came up with them :)
Then you wouldn't be able to
I do know that WAL files taken from a 64 bit OS will not work on a 32
bit OS. However I have to prepare a technical answer to this.
That is, questions like - why a WAL file from 64 bit will not work in
32 bit. Also does the WAL file differ for same architecture but
different kind of partitions?
On Wed, 2007-05-09 at 12:02 -0700, Dann Corbit wrote:
Views can hide important information from the optimizer (especially
index information).
I believe that you're mistaken, and you can see it rather easily by
explaining a select on a view (or even a view of views). For example:
Joshua D. Drake wrote:
Karsten Hilbert wrote:
On Wed, May 09, 2007 at 10:29:02AM -0700, Joshua D. Drake wrote:
This is exactly what I was asking about. So my theoretical idea has
already been implemented. Now if only *all* my ideas were done for me by
the time I came up with them :)
Then
Alvaro Herrera wrote:
Joshua D. Drake wrote:
Karsten Hilbert wrote:
On Wed, May 09, 2007 at 10:29:02AM -0700, Joshua D. Drake wrote:
This is exactly what I was asking about. So my theoretical idea has
already been implemented. Now if only *all* my ideas were done for me by
the time I came up
Is there a preferred replication system for PG 8 db users? Obviously,
we're looking for robustness, ease of operations/installation, low
latency and efficient with system and network resources, with an active
open source community being preferred.
Thanks,
David
Hi,
On Wed, 2007-05-09 at 12:51 -0400, Wade Hampton wrote:
The build of rhel src rpm failed due to This platform is not thread
safe. Check the file 'config.lg' fo rthe exact reason.
Is this CentOS 5 final? I saw this issue in a beta release of RHEL5, but
I saw that it is fixed in final
On Wed, May 09, 2007 at 10:29:02AM -0700, Joshua D. Drake wrote:
Naz Gassiep wrote:
Hannes Dorbath wrote:
I think this is close to what MySQL's query cache does. The question
is if this should be the job of the DBMS and not another layer. At
least the pgmemcache author and I think that it's
On Wed, 2007-05-09 at 14:40 -0700, David Wall wrote:
Is there a preferred replication system for PG 8 db users? Obviously,
we're looking for robustness, ease of operations/installation, low
latency and efficient with system and network resources, with an active
open source community being
--- Reece Hart [EMAIL PROTECTED] wrote:
I believe that you're mistaken, and you can see it rather easily by
explaining a select on a view (or even a view of views). For example:
View definition:
SELECT pa.palias_id, pv.pseq_id, pa.origin_id, pa.alias,
pa.descr,
Ashish Karalkar wrote:
Thanks Brent for your replay,
What about the Disadvantages, Performance issues?
As far as I'm aware, performance is the only real disadvantage.
I tend to break DB design into stages:
ER modelling to define the entities/relationships the DB needs to
store/represent
Brent Wood wrote:
Ashish Karalkar wrote:
Thanks Brent for your replay,
What about the Disadvantages, Performance issues?
As far as I'm aware, performance is the only real disadvantage.
What performance are we talking about here? Executing from a view
although has *some* overhead, I don't
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 15:18, Dann Corbit wrote:
[snip]
That is a significant achievement, since many database systems do not
have that ability.
Maybe (probably!) back in the Oracle 6 days, but cost-based
optimizers have done this for *years*.
- --
Ron
On May 9, 2007, at 19:58 , Joshua D. Drake wrote:
Brent Wood wrote:
Ashish Karalkar wrote:
Thanks Brent for your replay,
What about the Disadvantages, Performance issues?
As far as I'm aware, performance is the only real disadvantage.
What performance are we talking about here?
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Ron Johnson
Sent: Wednesday, May 09, 2007 6:07 PM
To: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Views- Advantages and Disadvantages
-BEGIN PGP SIGNED MESSAGE-
Hash:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 05/09/07 20:21, Dann Corbit wrote:
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-general-
[EMAIL PROTECTED] On Behalf Of Ron Johnson
Sent: Wednesday, May 09, 2007 6:07 PM
To: pgsql-general@postgresql.org
Subject: Re:
Joshua D. Drake wrote:
Brent Wood wrote:
Ashish Karalkar wrote:
Thanks Brent for your replay,
What about the Disadvantages, Performance issues?
As far as I'm aware, performance is the only real disadvantage.
What performance are we talking about here? Executing from a view
although has
Hi,
I need to check whether the input string is in ip address format or not in
one of my pl/pgsql functions.
What function should be used to accomplish this
I tried using
if inet(strInput)
However, it throws an exception if the input string is not in IP address
format.
I could have caught this
On Wed, 2007-05-09 at 14:40 -0700, David Wall wrote:
Is there a preferred replication system for PG 8 db users? Obviously,
we're looking for robustness, ease of operations/installation, low
latency and efficient with system and network resources, with an active
open source community
On Thu, May 10, 2007 at 12:22:37AM -0400, Jasbinder Singh Bali wrote:
I need to check whether the input string is in ip address format or not in
one of my pl/pgsql functions.
What function should be used to accomplish this
I tried using
if inet(strInput)
However, it throws an exception
I have always found MySQL's query cache to be utterly useless.
Think about it this way :
It only works for tables that seldom change.
It does not work for big tables (like the posts table of a forum)
because the cache would have to be huge.
So, the most frequent usage
98 matches
Mail list logo
