On Fri, May 08, 2009 at 06:40:33PM -0300, Emanuel Calvo Franco wrote:
> 2009/5/8 David Fetter :
> > On Fri, May 08, 2009 at 06:10:18PM -0300, Emanuel Calvo Franco wrote:
> >> Hi all.
> >>
> >> I'll make this faster.
> >>
> >> I hace this t
e that actually
specifies the order well enough :)
Cheers,
David.
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ree software project like PostgreSQL is
that you can choose the support option that best fits your needs
rather than being tied to one company whose support options may not.
Cheers,
David.
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On Fri, May 08, 2009 at 09:44:56AM +0100, Tim Bunce wrote:
> On Thu, May 07, 2009 at 06:08:12PM -0700, David Fetter wrote:
> > On Fri, May 08, 2009 at 01:02:04AM +0100, Tim Bunce wrote:
> > > On Thu, May 07, 2009 at 06:50:11AM -0700, David Fetter wrote:
> > > > On T
On Fri, May 08, 2009 at 01:02:04AM +0100, Tim Bunce wrote:
> On Thu, May 07, 2009 at 06:50:11AM -0700, David Fetter wrote:
> > On Thu, May 07, 2009 at 02:31:08PM +0100, Tim Bunce wrote:
> > > On Thu, May 07, 2009 at 04:54:06AM +1200, Andrej wrote:
> > > >
>
e may no longer
> > work.
>
> Sure seems like a bug, or at best a misfeature, that DBD::Pg doesn't
> simply fallback to client-side prepare when a server-side prepare
> can't be performed. I believe DBD::mysql does that.
It's a safety feature. :)
Cheers,
David.
-
you
want public help, you have come to the right place on this mailing
list. If you want help on other terms--say, non-disclosure
agreement--there are plenty of companies including mine,
<http://www.pgexperts.com/>, that will be happy to work with you.
Cheers,
David.
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David Fetter http
BY orders.id statement enaught?
> Why the costumers.name is needed?
It's because PostgreSQL doesn't just assume it knows better than you
do and take a guess at what you might have meant. :)
> Sorry, i know that this maybe is a basically problem, but i come
> from mysql..
'''||new.logged_in||''',
> '||new.uid||',
> '''||new.http_user_agent||''',
> '''||new.server_addr||''',
> ''&
On Tue, Apr 21, 2009 at 08:15:00PM +0100, Peter Childs wrote:
> Hmm Interestingly OSM have just switched from MySQL to PostgreSQL.
Can we get somebody from OSM to talk about this on the record?
Cheers,
David.
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Phone: +1 415 235 3778 AIM: dfetter666 Ya
're proposing, how do
you find all the people who have a common prefix? Answer: Normalize.
If you need that answer quickly, you're looking at down time and DDL
changes. The questions you ask about the data are impossible to know
in advance, so normalized data helps you deal with tha
Y KEY(name, cod, num)
);
Cheers,
David.
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ib/adddepend on each of the databases in it
* Use 8.3.7's pg_dumpall to dump the now-fixed 7.4.25 database
* Load that into 8.3.7, and, most importantly,
* Build in and enforce upgrades as part of your maintenance cycle.
You never want to have to do *anything* like this again.
Cheers,
David.
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my eyes.
That would make it *proprietary*, as no FLOSS license allows such a
restriction.
> This is getting off topic, sorry.
Vaguely. Has that stopped us before? ;)
Cheers,
David.
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h columns from a lot of different
> places?
> Will deleting a column result in a lot of empty space that will anoy
> me later on?
>
> Are there any other clever solutions of this problem?
>
> --
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> To m
on concrete tables.
>
> Thanks in advance,
> George
>
> [1] http://docs.python.org/library/functions.html#enumerate
>
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Is this snapshot cloning? If so, thanks very much for publishing it! :)
If not, I'm really curious as to what it is :)
On the subject of snapshot cloning, I can see, at least in broad brush
strokes, how this would work for read queries, but I'm curious how (or
if) it could work for writes
attacks?
Yes. Much more.
Cheers,
David.
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this idea completely wrong?
Yes. Fortunately, knowing this, you can adjust your expectations and
your development plan. :)
Cheers,
David.
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Remember
s kind of line, you are inviting an SQL injection as
illustrated below:
http://xkcd.com/327/
Instead, use pg_prepare() and pg_execute() for this kind of thing.
Cheers,
David.
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g list (pgsql-general@postgresql.org)
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Consid
On Thu, Feb 19, 2009 at 11:43:19PM +, Sam Mason wrote:
> I was just reading over a reply from David Fetter from a couple of
> days ago; the thread is archived[1] but this question doesn't really
> relate to it much. The a question about how to arrange tables and
> David m
opy test from '2.txt' delimiter ●"
> ERROR: COPY delimiter must be a single character
> \copy: ERROR: COPY delimiter must be a single character
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alid; dates go from 1BC to 1AD without a zero in the middle.
> Shouldn't you just remove the NOT NULL check or maybe '-infinity' would
> be better.
Either require a created_date and make the default
sane--CURRENT_TIMESTAMP, e.g.--or don't require one, but making a
nons
On Tue, Feb 03, 2009 at 05:48:51PM +, Greg Stark wrote:
> On Thu, Jan 29, 2009 at 5:43 PM, David Fetter wrote:
> >>
> >> > * CTEs not yet integrated into the adjacency lists in pg_catalog,
> >> > etc.
> >>
> >> I'm not sure what you
f you have a relatively recent 8.2. That should scrub
everything :)
Cheers,
David.
> Thanks folks --
>
> -- Eric Brown / Director of IT / www.mediweightlossclinics.com
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On Thu, Jan 29, 2009 at 05:18:19PM +, Gregory Stark wrote:
> David Fetter writes:
>
> > * No built-in ways to get the information psql gets. "See what
> > psql is doing" isn't an option when somebody doesn't have psql on
> > hand.
>
> Uhm
On Thu, Jan 29, 2009 at 05:18:17PM +, Dave Page wrote:
> On Thu, Jan 29, 2009 at 4:57 PM, David Fetter wrote:
>
> > * Neither of them let you set up Slony (or any other replication
> > system) to start with.
^
> pgAdmin does (well, barring instal
ey catch ire:
* Neither pgAdmin nor phpPgAdmin includes any facilities for
extracting ERDs.
* Neither of them let you set up Slony (or any other replication
system) to start with.
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gt;> to reinforce the advice to test your applications before you do the
>> live migration. You're almost certain to hit some compatibility
>> issues.
>
> +1
+1 from here, too.
Cheers,
David.
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Phone: +1 415 235 3778 AIM: dfette
On Wed, Jan 21, 2009 at 05:18:57AM +0100, Együd Csaba wrote:
> >From: David Fetter [mailto:da...@fetter.org]
> >On Tue, Jan 20, 2009 at 03:03:33PM +0100, Csaba Együd wrote:
> >> Hi,
> >> I'd like to ask your suggestions about a reliable admin software
> >&
On Tue, Jan 20, 2009 at 09:51:25PM -0500, Robert Treat wrote:
> On Tuesday 20 January 2009 10:44:06 David Fetter wrote:
> > On Tue, Jan 20, 2009 at 03:03:33PM +0100, Csaba Együd wrote:
> > > Hi,
> > > I'd like to ask your suggestions about a reliable admin softwar
nd other features.
Yes, you should definitely do that and store the scripts to do it in
your source code management system along with all the rest of the
deploy and upgrade scripts. They can't be generated automatically
either.
Cheers,
David.
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Phone: +1 4
On Fri, Jan 16, 2009 at 12:41:59PM -0500, Tom Lane wrote:
> David Fetter writes:
> > We don't appear to be able to use the actual thing in the target list
> > either.
>
> Would you translate that into English? Or at least an example without
> trivial syntax errors?
On Fri, Jan 16, 2009 at 12:34:34PM -0500, Tom Lane wrote:
> David Fetter writes:
> > I tried this:
>
> > SELECT
> > typ,
> > ts,
> > rank() over w AS foo_rank
> > FROM
> > foo
> > WINDOW w AS (partition b
On Fri, Jan 16, 2009 at 12:23:16PM -0500, Jaime Casanova wrote:
> On Fri, Jan 16, 2009 at 12:07 PM, David Fetter wrote:
> >>
> >> Now i want only 3 records for every typ:
> >>
> >> test=# select typ, ts, rank() over (partition by typ order by ts desc )
&g
E"
LINE 8: WHERE
^
Possibly the above is not a bug, but I'm pretty sure this is:
SELECT
typ,
ts,
rank() over w AS foo_rank
FROM
foo
WINDOW w AS (partition by typ order by ts desc)
WHERE
typ < 4;
ERROR: syntax error at or near "WHERE&qu
luster failed
to upgrade to a supported version. Don't Do That Again :)
Cheers,
David.
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On Fri, Dec 26, 2008 at 07:13:48PM -0500, Tom Lane wrote:
> Ivan Sergio Borgonovo writes:
> >>> David Fetter wrote:
> >>>> In 8.4, you'll be able to do:
>
> >>>> WITH d AS (
> >>>> SELECT DISTINCT c1, c2 FROM table1
> &g
On Fri, Dec 26, 2008 at 08:03:30PM +0100, Ivan Sergio Borgonovo wrote:
> On Fri, 26 Dec 2008 10:43:25 -0800
> David Fetter wrote:
>
> > On Fri, Dec 26, 2008 at 03:34:33PM +0100, Ivan Sergio Borgonovo
> > wrote:
> > > I noticed that starting from 8.2 t
) from table1;
>
> --
> Ivan Sergio Borgonovo
> http://www.webthatworks.it
>
>
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recommend any other hardware/software solutions?
>
>
> Regards.
>
> --
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Phon
than PG's?
You've been talking about your super-secret test which you allege,
quite implausibly, I might add, to have Oracle (8i, even!) blowing
PostgreSQL's doors off for weeks now.
Put up, or shut up.
Regards,
David.
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Phone: +1 415 235 3778 AIM:
p until you fix your design, and dynamic
querying will only lead you further down this rat-hole.
The answer to, "how do I shoot myself in the foot?" is "Don't."
Cheers,
David.
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lk to people who have done bookkeeping
applications for PostgreSQL, or possibly even buy one of the
proprietary PostgreSQL-based systems for it, as this stuff can be
fiendishly tricky to get right.
Cheers,
David.
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David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778
gt; > first/last 'bar' for each distinct 'foo'?
> >
> > 2. Can I somehow say "Order the results using the value of 'bar' you
> > return, regardless of where it came from"?
>
> You can nest queries:
>
> SELECT foo,bar
> FROM
nd *month*, with an additional column
> that is a *running total of the count*, as in:
In 8.4, you'll have direct SQL support for this using OLAP a.k.a.
windowing functions, so don't build too many of these dodgy hacks into
your application.
Cheers,
David.
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David Fetter &
n can be got from http://epqa.sourceforge.net/
>
>
> Expecting suggestions, feedbacks, clarfications @ [EMAIL PROTECTED]
>
> Note: This is to propagate the open source which can help for postgres
> users.
> This is not a spam, or advertisement.
>
> Regards
> SathiyaMoorthy
uot; (or "vacuumdb -z") on the
> database, how can
Why are you doing this in the first place? Autovacuum works just
great for modern PostgreSQL versions, and if you're not using one of
those, you should be planning your migration, not propping up the old
one :)
Cheers,
David.
-
gt;
> kdiff3 prod.schema devel.schema
>
> You need to create an upgrade script by looking at the diff.
No. Really, no. You need to create the upgrade script by creating
upgrade scripts, not by reverse engineering.
Cheers,
David.
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l ways will be possible. But what do you suggest?
See above :)
Cheers,
David.
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kdir $1
This will scale better if you batch it, as in:
INSERT INTO clients (name, status)
VALUES
('Donda', 'inserted_no_directory'),
('Eonda', 'inserted_no_directory'),
('Fonda', 'inserted_no_directory'),
...
Once y
s.
> > Anybody knows how improve this?
>
> If I have to push the predicate down, I'll generally write a
> set-returning function which takes some of the predicate, limit, and
> offset info to build a dynamic sql query against the remote database
> using dblink.
That's o
shrugging its shoulders,
> but I haven't actually tested that solution with many massive
> questionnaires for its query performance.
>
> I pretty much have my answer. Thanks for your input guys.
Happy to help :)
Cheers,
David.
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David Fetter <[EMAIL PROTECTED]> http://fe
be 0,
> which seems a bit kludgey to me. Plus because an answer ID can't be
> required due to free form text answers, I can't enforce a foreign key.
>
> Is there a nice elegant solution anyone knows of?
>
> Thanks
>
> Thom
>
> --
> Sent via pgsql-
most certainly is :)
Cheers,
David.
> --
> Sergey
>
> P.S. My application and DB can be placed on diferent hosts.
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Rememb
If not, start there :)
Cheers,
David.
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they have no binary to examine.
> FWIW, I think most people who want to hide code aren't concerned about
> IP, they're concerned about clients seeing embarrassingly bad/sloppy
> code. But there *are* some very real and legitimate needs for this,
> though it's a smal
inputs to it
is one of those "known-impossible" problems like the halting problem.
Cheers,
David.
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Remember
u warn people that any
DDL they do that's not one of your scripts will break it. Explicitly
disclaim any responsibility for such meddling. :)
Cheers,
David.
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On Mon, Sep 01, 2008 at 04:39:09PM +0200, Thomas Kellerer wrote:
> David Fetter, 01.09.2008 16:08:
>>> because we are making extensive usage of Oracle's windowing
>>> functions
>>
>> http://umitanuki.net/pgsql/wfv04/design.html
>
> I knew there was wor
sign.html
> (and ability to easily deal with hierarchical data using CONNECT BY).
It's even more fun with CTEs.
<http://wiki.postgresql.org/wiki/CTEReadme>
> The lack of windowing functions is a bit frustrating as I'm
> otherwise a big Postgres fan!
Those will both b
blamed Oracle, they know the responsibility is no longer on their
shoulders.
Cheers,
David.
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vantages in negotiations.
Cheers,
David.
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will get into 8.4,
so don't put too, too much effort into this. :)
Cheers,
David.
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to
> 100 records) while the main table contain 600-800K records.
>
> the
> explain delete p;
> doesn't give any clue.
>
> Any hint to track down the problem?
BEGIN;
EXPLAIN ANALYZE DELETE ...
ROLLBACK;
Lack of indexes on the referencing tables might be an issue, as mig
g isn't a bug unless you can reproduce it on the latest
minor version, in this case 8.3.3, of the major version, in this case
8.3, that the bug appears in.
Cheers,
David.
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between
> them, and they must restart from 1 every year.
Here's a backward-compatible way to do this:
http://www.varlena.com/GeneralBits/130.php
Cheers,
David.
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mpany_name
You could do something like
array_to_string(
array_accum(p.publisher_name),
'|' -- or any other string guaranteed not to appear in the publisher_name
)
Cheers,
David.
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Phone: +1 415 235 3778 AIM: dfetter
gt; foreign-key code" mean DDL? If it does how could I do this?
The code you posted is a clear case of doing things wrong
deliberately. In order to prevent this error, you would need to
rewrite large parts of Postgres's code which checks referential
integrity, and there would still be things t
s broken this way.
Fix the application, and if you can't, find another job where they're
not being idiots. There are plenty of Postgres-related jobs out
there.
Cheers,
David.
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Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!:
oned lock.c, but I don't see anything
visible to SQL.
Cheers,
David.
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he
> check is pointless because the newly added field is nothing but NULLs.
>
> This is version 8.1.mumble.
Have you tried making the FK constraint INITIALLY DEFERRED?
Cheers,
David.
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Phone: +1 415 235 3778 AIM: dfetter666 Yahoo
On Tue, May 13, 2008 at 01:53:33PM -0700, David Fetter wrote:
> On Tue, May 13, 2008 at 11:36:57AM -0400, Tom Lane wrote:
> > David Fetter <[EMAIL PROTECTED]> writes:
> > >>> Surely this is merely proof of concept and not a complete patch.
> > >>
>
On Tue, May 13, 2008 at 11:36:57AM -0400, Tom Lane wrote:
> David Fetter <[EMAIL PROTECTED]> writes:
> >>> Surely this is merely proof of concept and not a complete patch.
> >>
> >> Next patch attached :)
>
> Uh, my point was that the agreement
On Tue, May 13, 2008 at 08:14:51AM -0700, David Fetter wrote:
> On Tue, May 13, 2008 at 10:47:40AM -0400, Alvaro Herrera wrote:
> > Tom Lane escribió:
> > > Alvaro Herrera <[EMAIL PROTECTED]> writes:
> > > > David Fetter escribi?:
> > > >> Thanks
On Tue, May 13, 2008 at 10:47:40AM -0400, Alvaro Herrera wrote:
> Tom Lane escribió:
> > Alvaro Herrera <[EMAIL PROTECTED]> writes:
> > > David Fetter escribi?:
> > >> Thanks for the heads-up :)
> > >>
> > >> Second patch attached, t
On Mon, May 12, 2008 at 05:30:48PM -0400, Bruce Momjian wrote:
> David Fetter wrote:
> > On Sun, May 11, 2008 at 11:48:29PM -0400, Tom Lane wrote:
> > > "Scott Marlowe" <[EMAIL PROTECTED]> writes:
> > > > Is it reasonable behavior to have \timing alo
re this isn't a problem and having to update them.
>
> The command without an argument should certainly keep the old toggle
> behavior, for backwards compatibility.
Attached patch does some of the right thing, but doesn't yet handle
error cases. How liberal should we be about c
On Mon, May 05, 2008 at 05:26:40PM +0200, Daniel Schuchardt wrote:
> David Fetter schrieb:
>> That technical debt is a risk to your whole project, and you need
>> to dedicate resources to paying it down.
>>
>> <http://en.wikipedia.org/wiki/Technical_debt>
he long run.
Cheers,
David.
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t; There are lots of developer related links here, and info to "use the
> /contrib pgcrypto", but I'm not a PG developer and I failed to find any
> info on HOW TO USE that library function...
>
> Thanks all,
>
> Ralph Smith
> [EMAIL PROTECTED]
> ===
pg_initdb
b)
Hrm. I'm seeing a pattern here ;)
> c) pg_init
> d) pg_ctl -d init (replace initdb with pg_ctl new functionality)
> e) What is initdb? My start/stop script does it automatically.
>
> 4) How do you perform VACUUM?
> -
>
> a) vacuum
array_lower($1,1),
array_upper($1,1)
) AS i
);
$$;
SELECT array_undup(array_cat(ARRAY[1,2], ARRAY[2,3]));
array_undup
-----
{1,2,3}
(1 row)
Cheers,
David.
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S
On Sat, Mar 08, 2008 at 10:49:02AM -0800, Colin Fox wrote:
> David Fetter wrote:
> > On Fri, Mar 07, 2008 at 01:22:49PM -0800, Colin Fox wrote:
> >
> >> I've created a pg_foundry project for this.
> >>
> >> Assuming the project gets approved, I&#x
> Regards
> > cf
> >
> >
> > --
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> > <mailto:pgsql-general@postgresql.org>)
> > To make changes to your subscription:
> > http://www.postgresql.o
gres-to-xml extractor that someone wrote (I
> don't know who - their name is not in the file) and then I convert
> the xml to graphviz.
Sounds good :)
Cheers,
David.
--
David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype:
column a...');
>
> (see http://dev.mysql.com/doc/refman/5.0/en/create-table.html)
>
> However, Postgres doesn't support the "comment" keyword.
Actually, it does :)
> Is there an alternative?
Cheers,
David.
--
David Fetter <[EMAIL PROTECTED]> http:/
00
>
> P.S. I translated the above messages from german, so it's not exactly the
> same message than the english SQL Server.
>
> Thanks for your help. :-)
>
> Regards.
>
> ---(end of broadcast)---
> TIP 5: don't forget
ecently JSON.
> It would be really neat if you didn't have to specify the return
> type in the query that invoked the crosstab.
It would be handy :)
Cheers,
David.
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David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype
On Mon, Feb 18, 2008 at 05:45:05PM +0530, Kakoli Sen wrote:
> Hi,
> I install PostgreSQL 7.3.21 successfully with sudo and could start
> the postmaster as sudo.
The 7.3 series is no longer supported. Use 8.3 instead.
Cheers,
David.
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David Fetter <[EMAIL PROTECTED]> http://fe
ipstick on the EAV pig does not help.
Cheers,
David.
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David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: [EMAIL PROTECTED]
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lowing the discussion concerning EAV.
EAV is just a mistake.
Cheers,
David.
--
David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: [EMAIL PROTECTED]
Remember to vote!
Consider dona
rish.
> weigh higher than you gain (in flexibility) in relational databases.
> But it sure has its uses cases.
Why, yes. I encourage all my competitors to use it. ;)
Cheers,
David.
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David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yah
ry* long time.
Cheers,
David.
--
David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: [EMAIL PROTECTED]
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t in MySQL is seriously
>> broken.
>
> I am not arguing that it isn't! :-) I am merely trying to implement
> something at least as good (or rather, no more broken) for
> PostgreSQL with a minimum of effort.
In that case, use one of the existing solutions. They're all w
On Mon, Jan 14, 2008 at 11:42:50AM -0500, Josh Harrison wrote:
> Thanks
>
> On Jan 12, 2008 9:19 AM, David Fetter <[EMAIL PROTECTED]> wrote:
>
> > On Fri, Jan 11, 2008 at 01:02:01PM -0500, Josh Harrison wrote:
> > > Hi
> > > We have an Oracle producti
;foo_4'
WHEN foo_5_id NOT NULL THEN 'foo_5'
END AS "which_foo",
COALESCE(
foo_1_id,
foo_2_id,
foo_3_id,
foo_4_id,
foo_5_id
) AS "id"
FROM
refs_all_foo;
You can then make this VIEW writeable by the us
s is probably to port PGRouting to 8.3 and
then standardize on 8.3 as a minimum version.
Cheers,
David.
--
David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter
Skype: davidfetter XMPP: [EMAIL PROTECTED]
Remember to v
as. The easiest way to get the associated data is to join on the
> original data table where ts1=ts or ts2=ts.
>
>
> -Reece
>
> --
> Reece Hart, http://harts.net/reece/, GPG:0x25EC91A0
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David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415
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