.
+Infinity was chosen as a default to avoid the complexities of
dealing with NULL logic in SELECTS. I suppose that the simplest
solution is to go with a date of -12-31 and treat that value
like infinity.
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.
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to anyone here then I would like to learn of
it.
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,
weight_mass_net_uom character varying(3)
DEFAULT ' '::character varying NOT NULL,
. . .
);
My question is: Why am I getting a NULL exception? Should I only
specify DEFAULT and drop the NOT NULL constraint?
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On Tue, March 8, 2011 10:09, Scott Ribe wrote:
On Mar 8, 2011, at 7:54 AM, James B. Byrne wrote:
My question is: Why am I getting a NULL exception?
Because you're trying to insert NULL explicitly?
Yes, that is the problem. Evidently RoR's ActiveRecord helpfully
converts a string
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up elsewhere and, if so, how is
it handled?
Sincerely,
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person to require this sort of thing of SQL so if anyone can
point me to a reference that explicitly sets out how to accomplish
this I would greatly appreciate it.
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like DISTINCT ON. I take it
that this syntax is peculiar to PostgreSQL?:
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with PostgreSQL?
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whatever, remains owned by the
original owner. Is there no way to change the owner everywhere in
the cloned database using cretedb? Or am I constrained to do a dump
all and restore?
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it it did
seem a bit convoluted. The REASSIGN OWNED BY seems the more
sensible approach.
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installed
Might there be a problem between the server being compiled for i386
and openssl for i686? I cannot for the life of me determine what
configuration problem causes this error.
On Fri, December 3, 2010 16:04, James B. Byrne wrote:
When I try to start the server with ssl
presently get makes no sense at all to
me.
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with ssl enabled.
Many thanks for the hints and suggestions. They did in fact
eventually point me in the right direction.
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9
the server no longer causes any error.
Than you all for the help.
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On Mon, December 6, 2010 13:29, James B. Byrne wrote:
The problem was an expired pki certificate. When we first used ssl
for pg we did not have our private CA set up. So we generated a
self-signed certificate. That certificate expired this past July
and I infer that while 8.1 did
On Sat, December 4, 2010 01:11, Tom Lane wrote:
James B. Byrne byrn...@harte-lyne.ca writes:
I wrote too soon. What I did was uncomment the ssl option. I
neglected to change the setting from off to on.
When I try to start the server with ssl=on it fails with this
error:
Auto
On Thu, December 2, 2010 15:32, James B. Byrne wrote:
On Thu, December 2, 2010 15:23, Devrim GÜNDÜZ wrote:
On Wed, 2010-12-01 at 16:54 -0500, Tom Lane wrote:
AFAIK, the Red Hat RPMs work out-of-the-box with SELinux;
They should -- we are using the same routines for initdb'ing.
I will do
On Wed, December 1, 2010 16:54, Tom Lane wrote:
James B. Byrne byrn...@harte-lyne.ca writes:
Earlier today I attempted to upgrade a production server
from 8.1 to 8.4 using the pgdg-84-centos.repo. I say
attempted because I could never get it to support ssl
connections
again. If there was just something odd about the SELinux contexts
on that particular host then that should clear it up. I will report
whichever way it goes thereafter.
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and column layouts in the new database.
Is there a way to load the data dumped from a single table in one
database into a new, possibly differently named, table in a
different database, using PG utilities?
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==
allow postgresql_t var_lib_t:dir rmdir;
allow postgresql_t var_lib_t:file { write getattr link read unlink
append };
Is this to be expected?
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I am doing wrong?
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?
regards, tom lane
I tried a restorecon as suggested by sealert at the first error. It
had no effect insofar as I could determine.
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On Wed, December 1, 2010 16:54, Tom Lane wrote:
James B. Byrne byrn...@harte-lyne.ca writes:
Earlier today I attempted to upgrade a production server from 8.1
to
8.4 using the pgdg-84-centos.repo. I say attempted because I
could
never get it to support ssl connections
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On Thu, November 25, 2010 21:58, Robert Treat wrote:
On Thu, Nov 25, 2010 at 9:21 PM, James B. Byrne
byrn...@harte-lyne.cawrote:
Looks to me like the problem is you are trying to ORDER BY columns
in
ca_customs_entry, but there is no such table for that (don't
confuse
I am dynamically generating a query like below that creates different
combinations of rules by left joining (any number of times) on itself and
avoiding rules with some of the same attributes as part of the joins
conditions e.g.
SELECT count(*)
FROM rules AS t1
LEFT JOIN rules AS t2
Good day,
Is it possible to use any of your products to compile openssl-1.0.0a.tar.gz
form
http://www.openssl.org/source/ for Win32 environment, how?
OR can you help complile it with this adjustment to the makefile:
To build, I needed to modify the first lines of the example code's Makefile as
Hi. I'm setting up a new workstation (Win7 64bit Quad Core 4GB) with
Postgres, for development work, and trying to pick which version I
should install. Most of the time, Postgres is dormant - I'm not using
it all - but when I do use it, the load can be high, and I want
maximum performance.
Is
What would be the best way to verify that a PITR came up with *all*
the expected data?
This is mostly for a controlled failover, where I manually bring down
the primary server, and shouldn't ever lose a transaction.
If I need to use something like txid_current(), how do I ensure that
it's the
On Mon, Aug 24, 2009 at 12:45 PM, james bardinjbar...@bu.edu wrote:
I tried recovery_target_timeline='X' on the standby, where X is the
new timeline created after recovery on the new master. This fails,
with some unexpected timeline ID lines and a
PANIC: could not locate a valid checkpoint
I wasn't sure which list is better suited, so this is cross posted
from pgsql-admin.
-Thanks
On Fri, Aug 21, 2009 at 10:46 AM, james bardinjbar...@bu.edu wrote:
I have a working warm standby system, running 8.4 (thanks for urging
me to upgrade from the rehdat provided release).
One of the new
Many wrote that the functional programming 'fold' is a good model for
relational aggregate functions. I have a few difficulties with this:
1. fold doesn't offer any type of GROUP BY, which is an essential component
of aggregation.
2. I don't believe fold can handle things like AVG() or STDDEV().
this would be a major boon to high volume servers, at
least in the usage patterns I've worked with.
On Mon, Jul 27, 2009 at 9:49 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Robert James srobertja...@gmail.com writes:
Hi. I noticed that when clients (both psql and pgAdmin) disconnect or
cancel
Thanks! SQL and Relational Theory: How to Write Accurate SQL Code looks
like the best pick of the bunch.
On Tue, Jul 28, 2009 at 10:08 AM, Michael Glaesemann
g...@seespotcode.netwrote:
On Jul 27, 2009, at 21:05 , Robert James wrote:
2) Database in Depth: Relational Theory for Practitioners
On Tue, Jul 28, 2009 at 9:47 AM, Sam Mason s...@samason.me.uk wrote:
On Tue, Jul 28, 2009 at 09:14:38AM -0400, Robert James wrote:
Many wrote that the functional programming 'fold' is a good model for
relational aggregate functions. I have a few difficulties with this:
1. fold doesn't
Hi. I noticed that when clients (both psql and pgAdmin) disconnect or
cancel, queries are often still running on the server. A few questions:
1) Is there a way to reconnect and get the results?
2) Is there a way to tell postgres to automatically stop all queries when
the client who queried them
, but not if the first is better. One thing I'm not interested in
is polemics against SQL and lamentations on how ignorant all practitioners
are.
On Mon, Jul 27, 2009 at 2:45 PM, Jeff Davis pg...@j-davis.com wrote:
On Sun, 2009-07-26 at 15:36 -0400, Robert James wrote:
I'm working on improving my
Is there a transitive closure (or equivalent) operator in Postgres (or
extension)?
Anything like CONNECT BY?
Or any recommended way of querying hiearchial data?
I'm working on improving my background database theory, to aid in practice.
I've found learning relational algebra to be very helpful. One thing which
relational algebra doesn't cover is aggregate functions. Can anyone
recommend any papers or web pages which provide some good theoretical
I'm currently running Postgres 8.2 on Windows XP. I would like to use some
8.4 features, but I don't want to migrate my 8.2. Is there any way to run
both instances together? Are there any problems with that?
Alternatively, is the procedure to move from 8.2 to 8.4 without data or
function loss
Hi. I'm confused about the behavior of LIKE under utf8 locale.
Accoding to the docs (
http://www.postgresql.org/docs/8.2/interactive/locale.html - excerpted
below), it seems that LIKE ignores locale and hence can't use indexes. Yet,
EXPLAIN clearly shows it using indexes.
The docs suggest a
On Mon, Jul 20, 2009 at 11:37 AM, Martijn van Oosterhout
klep...@svana.orgwrote:
I know it's not easy, but a nice option to me would be if the 8.1 docs
page linked to the equivalent page in the other versions. That would
avoid the need to manually edit the URL after a google search.
Oh, and
...@sss.pgh.pa.us wrote:
Robert James srobertja...@gmail.com writes:
Hi. I'm confused about the behavior of LIKE under utf8 locale.
UTF8 is not a locale, it's an encoding. If you're using C locale then
LIKE can use indexes, regardless of the encoding. If you're using
some other locale then you need
Thanks - I don't show any locale:
rbt_development= \l
List of databases
Name | Owner | Encoding
+-+--
rbt_development | rbt | UTF8
...
On Wed, Jul 22, 2009 at 6:45 PM, Andreas Wenk
a.w...@netzmeister-st-pauli.de wrote:
Robert James
I'd like to SELECT INTO one table into another one. However, I'd like to do
two things that I don't know how to do using SELECT INTO:
1. Copy over the indexes and constraints of the first table into the second
2. Do SELECT INTO even if the second table already exists.
Is there anyway to do
Yes, I had done UNION. UNION ALL achives the expected plan and speed! Thank
you!
BTW, this is interesting, because there are only about 5 or 6 rows max
returned from both queries - but I guess the planner expects more and hence
changes the plan to remove duplicates.
On Sun, Jul 19, 2009 at 9:05
Two small suggestions that might make it easier for newcomers to take
advantage of the wonderful database:
1. Googling Postgres docs produces links for all different versions. This
is because incoming links are to different versions. Besides being
confusing, it pushes the pages lower in Google,
I have two queries which should be equivalent. The Planner plans them
differently, although they are both about the same time. Can someone
explain why?
select word from dict
where
word in
(select substr('moon', 0, generate_series(3,length('moon'
select * from dict
inner join (select
to a numeric expression such
as the one above?
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Hi. I notice that when I do a WHERE x, Postgres uses an index, and when I
do WHERE y, it does so as well, but when I do WHERE x OR y, it doesn't. Why
is this so? And how can I shut this off?
select * from dict
where
word in (select substr('moon', 0, generate_series(3,length('moon' --
this
PS Running PostgreSQL 8.2.1 on i686-pc-mingw32, compiled by GCC gcc.exe
(GCC) 3.4.2 (mingw-special)
On Sun, Jul 19, 2009 at 6:58 PM, Robert James srobertja...@gmail.comwrote:
Hi. I notice that when I do a WHERE x, Postgres uses an index, and when I
do WHERE y, it does so as well, but when I
I would like to CLUSTER a table on its PRIMARY KEY. Now, I haven't
explicitly defined and named an index for this table - but the primary key
defines one. How can I tell Postgres to CLUSTER on it?
Also: If I define an index on a PK, will Postgres make a second one, or
realize its redundnant?
UNION was better, but still 5 times as slow as either query done
individually.
set enable_seqscan=off didn't help at all - it was totally ignored
Is there anything else I can do?
On Sun, Jul 19, 2009 at 7:47 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Robert James srobertja...@gmail.com writes:
Hi
Thanks, Chris. Is there a way to do this deterministically, or at least
programatically? I have code to create the tables and cluster them
automatically?
On Sun, Jul 19, 2009 at 8:21 PM, Chris dmag...@gmail.com wrote:
Robert James wrote:
I would like to CLUSTER a table on its PRIMARY KEY
:10 PM, Robert James srobertja...@gmail.comwrote:
UNION was better, but still 5 times as slow as either query done
individually.
set enable_seqscan=off didn't help at all - it was totally ignored
Is there anything else I can do?
On Sun, Jul 19, 2009 at 7:47 PM, Tom Lane t...@sss.pgh.pa.us wrote
= notice
#log_min_messages = notice
#log_min_duration_statement = -1
...
#log_duration = off
Which of these, if any, should I alter; and to what? Am I
constrained to system wide logging or can this be enabled by
database?
Regards,
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is going on.
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this result reports that there are
no rows returned. So where did they go?
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log, which seems congruent with the one ROLLBACK
just before the very end.
Evidently, all this test processing takes place within a single,
never completed, transaction.
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On Fri, July 10, 2009 18:48, Scott Marlowe wrote:
On Fri, Jul 10, 2009 at 2:13 PM, James B.
Byrnebyrn...@harte-lyne.ca wrote:
2009-07-10 15:59:17 EDT hll_theheart_test 216.185.71.24(49133)
hll_theheart_db_admin : LOCATION: exec_simple_query,
postgres.c:1105
2009-07-10 15:59:17 EDT
necessary to clarify that LOCATION lines correspond
to the LOG/NOTICE/WARNING/ERROR line immediately _above_ it, not
the one below.
So noted, with thanks.
Regards,
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a nudge in the right direction. This issue at least has
no overlong dates.
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effective_from
timestamp without time zone;
ALTER TABLE currency_exchange_rates ALTER COLUMN effective_from SET
STORAGE PLAIN;
ALTER TABLE currency_exchange_rates ALTER COLUMN effective_from SET
NOT NULL;
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On Tue, June 30, 2009 14:07, Tom Lane wrote:
It's the eight-digit year field that it's unhappy with ...
Duuuh! I suppose that it would...
Thanks,
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out from that initial point.
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to recollect, the owner of the development and test
databases had dbcreate privileges.
If the problem persists under the cygwin environment then I will
revisit the native pg installation for testing.
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:
pg_config.exe, pg_dump.exe and pg_dumpall.exe but no initdb.exe
anywhere. Is there something about initdb that I do not understand
or some reason why it would not form part of the cygwin
installation?
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in it.
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Found it. The cygwin executables for postgres are installed under
/usr/sbin, which is NOT in the PATH thus the problem, and the
obvious solution.
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Given a datetime column, not null, is there a single syntax that
permits searching for all dates in a given year, year+month, and
year+month+day such that a single parameterised query can handle all
three circumstances?
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was doing something out of ignorance that was
notoriously wrong, it seemed best to ask.
Regards,
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On Wed, May 20, 2009 13:07, James B. Byrne wrote:
This seems to be working. I had to take a different approach as I
had misapprehended GROUP BY completely.
SELECT *
FROM currency_exchange_rates AS xchg1
WHERE id
IN (
SELECT id
FROM currency_exchange_rates as xchg2
WHERE
1.151300
CAD AUD 2009-05-16 20:40:00 CLSE 1.142100
CAD USD 2009-05-19 20:40:00 CLSE 0.843100
CAD USD 2009-05-19 16:15:00 NOON 0.864400
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to include it in the GROUP BY clause as well.
Any help is welcomed.
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that returns every distinct
combination of base, quote, timestamp, and type, then what?
Unless I am missing something then I still have too many rows for
those currencies with more than one type.
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;
pg_restore: [archiver (db)] could not execute query: ERROR: schema
public already exists
Command was: CREATE SCHEMA public;
WARNING: errors ignored on restore: 2
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On Wed, April 8, 2009 16:05, hubert depesz lubaczewski wrote:
On Wed, Apr 08, 2009 at 03:59:22PM -0400, James B. Byrne wrote:
EXCEPTION
WHEN unique_violation THEN
-- NULL -- do nothing
RETURN NULL; -- AFTER trigger results are ignored anyway
END
On Wed, April 8, 2009 16:06, Tom Lane wrote:
James B. Byrne byrn...@harte-lyne.ca writes:
I just need another set of eyes to see whatever it is that I am
overlooking.
The RETURN is inside the EXCEPTION clause.
You really need two BEGINs here, one for the outer function body and
one
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done something wrong. Is there some way of getting
PG to tell me what it is doing?
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James B. Byrnemailto:byrn...@harte-lyne.ca
Harte Lyne Limited http://www.harte-lyne.ca
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I am testing the trigger function that I wrote. Is there a way to
increase the logging detail level for just a single database
instance? The manual indicates not, but just in case I am
misreading things I am asking here?
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On Tue, April 7, 2009 16:07, Tom Lane wrote:
You might find it more useful to add some elog(LOG) statements to
the trigger body.
Thank you again. I will go through section 44.2 tonight.
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in straight SQL? Should it be
straight SQL if possible? What should the function return, if
anything?
Fairly basic stuff I am sure but somewhat mystifying for me at the
moment. Any help would be appreciated.
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James B. Byrnemailto:byrn...@harte-lyne.ca
Harte Lyne Limited http://www.harte-lyne.ca
9 Brockley Drive vox: +1 905 561 1241
Hamilton, Ontario fax: +1 905 561 0757
Canada L8E 3C3
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James B. Byrnemailto:byrn...@harte-lyne.ca
Harte Lyne Limited http://www.harte-lyne.ca
9 Brockley Drive vox: +1 905 561 1241
Hamilton, Ontario fax: +1 905 561 0757
Canada L8E 3C3
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if the function
handles a failed insert then if the function occurs inside a
transaction then that transaction fails and is rolled back
regardless?
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?
If one looks at things from a code maintenance standpoint it appears
the the function and trigger approach is preferable. Is it?
Opinions?
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