I'd have thought the terminal program would set up
the right environment ... but you might as well try it.
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that to be a BEFORE insert or update trigger. In
an AFTER trigger, it's too late to affect the stored row.
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. Postgres settled on this behavior fifteen years ago,
and we're not changing it now.
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just like any
other. And you'd still be paying a large part of the application
breakage costs, because the identifiers coming back in query descriptors
are one of the main ways applications would notice such a change.
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index; GIST seems much less able to do well with
short prefixes). What PG version are you testing?
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outer reference to qry.setid.
Probably not one of SQL's better design features, since it confuses
people regularly; but it's required by spec to work like that.
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To make changes to your
values. If
you're not into prepared statements, this may not excite you, but some
people find it to be a big deal.
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What's failing is that the *owner of the view* needs, and hasn't got,
select access on the entities table. This is a separate check from
whether the current user has permission to select from the view.
Without such a check, views would be a security hole.
regards, tom lane
for you, you could use an AFTER trigger instead, which will be a
little slower but it hides the deletes behind the scenes. (Note: a
DELETE issued in a trigger is a separate query, which is why it doesn't
fall foul of the limitation your WITH query did.)
regards, tom lane
to be
sure which one would process a particular row first.
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enough. With simpler
functions you might have to insert OFFSET 0 into the sub-select to keep
the planner from flattening it into the upper query and producing the
same multiple-evaluation situation.
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, but not for a range constraint. Did you do that manually
and not tell us about it?
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', start_date at time zone 'utc')
http://www.postgresql.org/docs/9.2/static/functions-datetime.html#FUNCTIONS-DATETIME-EXTRACT
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a pgAdmin bug. You should report it in the pgAdmin
mailing lists.
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-linux-gnu, compiled by GCC gcc (GCC) 3.4.6
20060404 (Red Hat 3.4.6-10), 64-bit
You do realize this is about 3 years out of date? The 8.4 series is up
to release 8.4.13, and a lot of those updates contained fixes for
serious bugs.
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Sergio C. angusyou...@yahoo.es writes:
We started the cluster up with this command:
./initdb -D /usr/local/postgre/data -E UTF8 -U sir
That doesn't prove anything about the specific database where you're
having the problem ...
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, even though some of them have
names containing the word ROW for historical reasons. I don't see how
you'd read it to imply that there are no finer-grained locks anywhere in
Postgres.
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To make
/TABLESAMPLE_Implementation)
Sorry, that wiki page is just blue-sky speculation. If the feature were
supported, you would find it in the main documentation.
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need to identify what layer of software it's coming from, and
complain to the appropriate people.
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interesting.) It does seem a bit odd that only fsm files are being
complained of, though.
What PG version is that exactly?
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Wayne Cuddy lists-pg...@useunix.net writes:
On Wed, Aug 08, 2012 at 12:23:22PM -0400, Tom Lane wrote:
If it only complains once per file name, this is expected behavior when
somebody drops a table just before the checkpoint mechanism tries to
fsync it. (If the failure were to repeat
the ranges as indexable objects.
In 9.0 or 9.1, probably the best way is to use contrib/seg/ to
represent the ranges as line segments. 9.2 will have a cleaner
solution, ie range types.
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are an optimization fence. That particular function looks
like it should be IMMUTABLE instead, since it depends on no database
state. If it does look at database state, you can probably use STABLE.
http://www.postgresql.org/docs/9.0/static/xfunc-volatility.html
regards, tom
Sergey Konoplev gray...@gmail.com writes:
On Thu, Jul 19, 2012 at 6:52 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Now I was wondering if a DELETE statement could be rewritten with the same
strategy:
Not at the moment. There have been discussions of allowing the same
table name
strategy:
Not at the moment. There have been discussions of allowing the same
table name to be respecified in USING, but there are complications.
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that numeric gives a
* result no less accurate than float8; but use a scale not less than
* either input's display scale.
*/
I wouldn't necessarily claim that that couldn't be improved on,
but that's what it does now.
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to edit longer text.
You'd need to tell the readline people about that one.
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);
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/charset.html
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the types *can* be cast if you try. Would it be better if the
message said cannot be cast implicitly to type foo? We could also
consider a HINT mentioning use of USING.
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syntax for this.
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this:
regression=# select 1/ from foo;
ERROR: syntax error at or near from
LINE 1: select 1/ from foo;
^
If you're using something so old that it doesn't do that, the answer
is to update.
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-readable files, so the fact that it doesn't have
an option for this doesn't bother me.
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maybe
if somebody got ambitious they could improve it.
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weird
user-defined version of substr() or ~ that isn't immutable?
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it gets to the Aggregate
step.
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. The latter, if not done as
superuser, would at least ensure you didn't accidentally break any
functions you don't own.
In either case, I'd practice against a test copy of the database before
doing this live ...
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found a pg_dump bug, but if so
you'll need to submit a complete test-case exhibiting the bug.
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in that.
In the longer term it might be nicer if the system catalogs did record
inherited-ness of defaults (and then pg_dump could rely on that info
instead of guessing); but that would be a far more invasive change.
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already told
last week:
http://archives.postgresql.org/pgsql-general/2011-12/msg00899.php
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, there are client-side
frameworks that will do it for you, or you can roll your own easily
enough. So we do not see it as a big deal that the database server
itself doesn't act that way.
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Postgres backends, and it's really hard to believe that unnest would be
affected by what's happening in other server processes.
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a fix, which will appear in next week's updates.
Thanks for the report and test case!
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minor release of your Postgres branch, update
and see if it goes away. If not, please file a bug report with
sufficient information to reproduce the problem by hand (ie, the
problem query plus schema+data sufficient to run it against).
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at it.
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. But for
now, it's going to be painful.
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Steve Northamer stevenortha...@gmail.com writes:
So my questions are: 1) How do we cause the paymentcalc function to be
executed only once?
In recent versions, I think marking it volatile would be sufficient.
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recommend turning off the conflict detection, though.
We put it in because of the number of hours people had wasted on
unrecognized conflicts.
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to do anything except scan
the subquery once. But if you did a join, say, watch out!)
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~~* any(array['str1%', 'str2%'... 'strN%']));
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Emi Lu em...@encs.concordia.ca writes:
On 08/30/2011 11:24 AM, Tom Lane wrote:
select * from tablename
where not (col1 ~~* any(array['str1%', 'str2%'... 'strN%']));
If next version could have not ilike ('', '') added into window
functions, that's will be great!
Why? And what's this got
;
EXIT WHEN newid IS NULL;
out := out || test (newid);
END LOOP;
RETURN out;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE;
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in the output, you should consider UNION ALL instead of UNION.
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to be perfectly clear: this is not Postgres' fault, it's
just sorting the way strcoll() says to. You'll get the same sort
order from the command-line sort(1) program, if you feed it the same
data in the same locale environment.
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.
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speculation about changing that, but it would
take a significant amount of work I think.
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, but are there enough that join_collapse_limit
or from_collapse_limit could be in play?
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ignoring spaces in the first pass. You might be
happier using C collation. Unfortunately that requires re-initdb'ing
your database (as of existing PG releases).
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locales often have truly bizarre
sorting rules.
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that.
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manuel antonio ochoa manuel8aalf...@gmail.com writes:
How can I solve this problem :
FATAL: invalid cache id: 19
There was a bug with that symptom in 9.0.0 and 9.0.1 ... if you're
running one of those versions, update.
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...
Leave out the second with recursive. WITH introduces a list of
name-AS-subselect clauses, not just one.
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a question about how to deal with such cases through the JDBC
driver, so I'd suggest asking on the pgsql-jdbc list. (Perhaps in a
less messy format this time, and could we ask for a useful Subject:
line too?)
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:
SELECT * from unnest(ARRAY[1,2,3]) a, unnest(ARRAY[4,5,6,7]) b;
This has saner behavior and is less likely to leak memory. Not to
mention less likely to be deprecated or de-implemented altogether
in the far future.
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, but it's at least easier to
write.
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Rob Sargent robjsarg...@gmail.com writes:
On 04/13/2011 09:09 AM, Tom Lane wrote:
Anish Kejariwalanish...@gmail.com writes:
(select store_id, avg(sales) sales
from store
where group_id in(select $1[i] from generate_subscripts($1, 1) g(i))
Seems like a pretty brute-force way to deal
Those are array types. The normal convention is that foo[] is named
_foo under the surface.
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at all.
Yes, because regexp_matches returns a rowset of zero or more results.
The fine manual suggests putting it in a sub-select if what you want
is a null or a single result:
SELECT ... , (SELECT regexp_matches(...)) FROM ...
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: providing
standardized views would reduce customer lock-in, by making applications
more portable to other DBMSes. The pain the OP is feeling is a
marketing advantage, so far as Oracle is concerned.
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not where sourceid 9? Or maybe where abs(sourceid) 9
would be better.
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don't remember right now how smart 8.3 is about
either.
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that doesn't
actually have any underlying loadable module.
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implementation.
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ventas_imp_a_ventas_cab
The function that's lacking a RETURN is not the one you're showing us.
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=?iso-2022-jp?B?GyRCQ2ZAbiEhQD81LhsoQg==?= nakag...@ivp.co.jp writes:
I'm trying to use like 'xx%' search on Text[] column.
I thought it uses index scan. But actually it uses seq scan.
Why?
Those ANY expressions are not indexable.
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... WHERE
((col1 is not null)::int +
(col2 is not null)::int + ...
(col20 is not null)::int) = 1 -- or 1
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NULL means unknown in this
context). Newbies get caught by that all the time :-( ... it's not one
of SQL's better features.
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. Why don't you use a real sequence object and nextval()?
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John Lister john.lister...@kickstone.com writes:
Is it possible to obtain the difference between just the minimum price and
the next one up per product,
If you're using = 8.4, try a window function. LEAD or LAG ought to
do it.
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backslash commands across lines.
When I remove the linefeeds I don't get errors but it does not import
anything.
You wanted pstdin, not stdin.
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.
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the LC_COLLATE
setting. If you want plain ASCII sort order, you need to switch to
C locale.
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for development. That has its
own hazards of course, like accidentally using features that don't exist
in 7.4, but it could save you a lot of time in cases like this.
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To make changes to your
against using it if you can get decent performance with EXISTS.
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it appears that the behavior of SIMILAR
TO has changed in pg9.0. My question is, how do I modify my code so
that it works in 9.0?
Drop the ^ and $; they are incorrect for SIMILAR TO.
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To make changes
and the ORDER BY in separate query levels,
like this:
select * from
(Select Distinct VehicleMake, VehicleModel
From VehicleYearMakeModelTrim) ss
Order by random()
Limit 10;
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To make changes
they spell it postgresql-dev or something else).
It should certainly be available somewhere from them --- if not,
file a packaging bug report.
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matter.
Basically, if you're gonna join that many relations, it's gonna cost ya
:-(. Star schemas are overrated IMO.
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, and the
lack of any very sane way to define the behavior is the main argument
for deprecating SRFs in the targetlist.
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Nathan Grange nath...@actarg.com writes:
Or if this is a bug with 9.0, what actions do I take to make the
PostgreSQL team awares?
I think you already did ;-)
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To make changes to your
? Would sorting them and sending the
SQL query with ordered data influence the speed of the query?
It's unlikely to make enough difference to be worth the trouble.
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Steve stev...@gmx.net writes:
Von: Tom Lane t...@sss.pgh.pa.us
It's unlikely to make enough difference to be worth the trouble.
Making a quick sort is ultra easy in C. Anyway... is there a
difference in the speed of the query with pre-sorted values or not?
If there is one then I will go
wouldn't recommend it as a production setting.
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my_expensive_function(...), etc, etc from
(select * from some-tables order by foo limit n) ss;
where the inner select list just pulls the columns you'll need in
the outer calculations.
regards, tom lane
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=?UTF-8?Q?Viktor_Bojovi=C4=87?= viktor.bojo...@gmail.com writes:
I am trying to name arguments in aggregate function, but i don't know how,
You can't --- it's not implemented.
regards, tom lane
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To make
the poly_overlap function did this:
* Determine if polygon A overlaps polygon B by determining if
* their bounding boxes overlap.
*
* XXX ought to do a more correct check!
I see it's been improved for 9.0 ...
regards, tom lane
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.
regards, tom lane
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