I have an update statement that affects every row in a given table.
For that table it changes the value in a single column, which itself
has a foreign key constraint. The table has an additional 9 foreign
keys, some of which reference large tables.
My expectation would be that only the changed
Hi All,
I wanted to find out if both the ends of a foreign key reference were
using the same data types, since, in older versions, not having the same
data types can lead to Postgres not picking the appropriate index, and in
newer versions also it would be beneficial since having same data
On Mon, Jun 1, 2009 at 1:25 AM, Tom Lane t...@sss.pgh.pa.us wrote:
Andrew Smith laconi...@gmail.com writes:
I'm a beginner when it comes to Postgresql, and have a table design
question
about a project I'm currently working on. I have 1500 data items that
need
to be copied every minute
Hi,
is there a way to dump an entire database which has a specific table space
without having in the sql file any reference to the tablespace? This can be
useful when moving the database from one machine to another (that does not use
the tablespace). Any way to achieve that with pg_dump?
Luca Ferrari wrote:
Hi,
is there a way to dump an entire database which has a specific table space
without having in the sql file any reference to the tablespace? This can be
useful when moving the database from one machine to another (that does not use
the tablespace). Any way to achieve
The Solaris ZFS file system is safe with disk write-cache enabled because it
issues its own disk cache flush commands
Could someone explain?
would that mean that I checking the disk cache with format -e on Solaris is
not needed if I use ZFS
Thanks
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John R Pierce wrote:
Luca Ferrari wrote:
Hi,
is there a way to dump an entire database which has a specific table
space without having in the sql file any reference to the tablespace?
This can be useful when moving the database from one machine to
another (that does not use the tablespace).
On 2009-05-27, Gauthier, Dave dave.gauth...@intel.com wrote:
--_000_482E80323A35A54498B8B70FF2B87980040AEFF544azsmsx504amrc_
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What is the (is there a) grant command that I can use to create a super use=
r
is there any way currently to convert xml file in format like below,
to a table ?
foo
section
ssc id=foo1
foo_data a=1 b=2/
foo_more_data c=a d=b/
/ssc
/section
section
ssc id=foo2
...
/ssc
/section
section
...
/section
section
...
On Sun, May 31, 2009 at 11:54:09PM +0800, Andrew Smith wrote:
I'm a beginner when it comes to Postgresql, and have a table design question
about a project I'm currently working on. I have 1500 data items that need
to be copied every minute from an external system into my database. The
items
On Mon, Jun 01, 2009 at 10:53:08AM +0100, Grzegorz Jaaakiewicz wrote:
is there any way currently to convert xml file in format like below,
to a table ?
I've had good luck with the xpath support in PG[1] and some variant of
the unnest function that's in PG 8.4 (various versions[2] have been
xpath is fine, but not when you have 10+ fields to extract ;)
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On 2009-05-28, Marcos Davi Reis d...@movamaps.com wrote:
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Hello All,
I did install the pgsql 8.3.7 on Ubuntu 8.04 using apt-get, now i need to
install pldebugger (edb-debugger) to
On Mon, Jun 01, 2009 at 11:22:14AM +0100, Grzegorz Jaaakiewicz wrote:
xpath is fine, but not when you have 10+ fields to extract ;)
I've got a few views pulling 10 to 15 values out of XML files and
it works OK, not amazing performance but for what I'm doing it's no
problem. Scaling beyond that
Hello
you can use simple perl parser
an sample is on
http://www.postgres.cz/index.php/PL/Perlu_-_Untrusted_Perl#Generov.C3.A1n.C3.AD.2C_zpracov.C3.A1n.C3.AD_XML
code is in english and perl, description in czech, sorry
regards
Pavel Stehule
2009/6/1 Grzegorz Jaśkiewicz gryz...@gmail.com:
That's one of things pg xml type lacks ... :/
I just need that to get some real xml, and convert to table once, so I
should be fine with xpath, but ... heh. This is so ugly.
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2009/6/1 Grzegorz Jaśkiewicz gryz...@gmail.com:
That's one of things pg xml type lacks ... :/
yes - SQL/XML isn't completed yet
http://wiki.postgresql.org/wiki/XML_Support :(
I believe so some procedure like xml_to_table should be nice.
but plperlu code should be simple (as perl code should
On 2009-06-01, Scara Maccai m_li...@yahoo.it wrote:
The Solaris ZFS file system is safe with disk write-cache enabled because it
issues its own disk cache flush commands
Could someone explain?
this means ZFS cofigured as described is suitable for the postgres
data (and *log) directories
I just finished doing something very close to this - not quite once per
minute, but close. I started off with an array of integers and after about
a month of it, I'm having to redesign my way out of it. It would have
worked fine, but you just have to be sure that simple searches is all you're
On Mon, Jun 01, 2009 at 06:53:30AM -0500, Chris Spotts wrote:
I just finished doing something very close to this - not quite once per
minute, but close. I started off with an array of integers and after about
a month of it, I'm having to redesign my way out of it.
I've had to go the other way
one word, horizontal structure. you are trying to sort 1500 colums,
instead of creating 1500 rows per entry...
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Thank you Tom for looking at this.
I would be pleased to help on testing the fix when available.
My plan is to store Informix INTERVALs (coming from the 4gl applications we
support) into PostgreSQL INTERVALs, and I have a bunch of tests for that...
I believe Informix INTERVALs (and related
Hi,
I'm trying to connect ruby to postgres on ubuntu and the only link I found that
has the library is down. Does anyone have the postgres library for ruby? Or
direct me to it?
On Mon, 1 Jun 2009, Scara Maccai wrote:
The Solaris ZFS file system is safe with disk write-cache enabled because it issues
its own disk cache flush commands
Could someone explain?
There are discussion of this with more information at:
Justin Carrera wrote:
Hi,
I'm trying to connect ruby to postgres on ubuntu and the only link I
found that has the library is down.
Details of the link might have helped the other readers on this list.
The owner might not know.
Does anyone have the postgres
library for ruby? Or direct me
j-lists jamisonli...@gmail.com writes:
I have an update statement that affects every row in a given table.
For that table it changes the value in a single column, which itself
has a foreign key constraint. The table has an additional 9 foreign
keys, some of which reference large tables.
My
Luca Ferrari fluca1...@infinito.it writes:
is there a way to dump an entire database which has a specific table space
without having in the sql file any reference to the tablespace? This can be
useful when moving the database from one machine to another (that does not
use
the tablespace).
Justin Carrera wrote:
I will remember that for next time.
Thank you for the link.
I tried installing the gem but unsuccessful...
r...@codeho:/home/justin/Documents/ruby# gem install postgres --
--with-pgsql-include=/opt/PostgreSQL/8.3/include
--with-pgsql-lib=/opt/PostgreSQL/8.3/lib
Tom Lane wrote:
However, this is really just cosmetic, as the dump is set up like this:
SET default_tablespace = whatever;
CREATE TABLE whichever(...);
If tablespace 'whatever' doesn't exist, you'll get an error on the SET
but the CREATE will succeed anyway. (I guess this only works
I have a view that joins several tables and want to create unconditional
INSERT RETURNING rule for it. I succeeded by specifying the RETURNING clause
for the first INSERT in the rule, casting NULL for columns that are not
present in that table to the correct type:
CREATE TABLE a (id SERIAL
I'd like to manually alter the statistics for a column, as for the column in
question the statistics are causing Postgres to do the wrong thing for my
purposes. (I.e., a Seq Scan, rather than an Index Scan.) If someone can
tell me how to achieve this, I would quite grateful.
Thanks!
|ouglas
Sava Chankov sava.chan...@gmail.com writes:
Is there a way to make RETURNING return all view columns?
Something like
CREATE RULE _insert AS ON INSERT TO j DO INSTEAD(
INSERT INTO a (id,name) VALUES (NEW.id, NEW.name);
INSERT INTO b (id,surname) VALUES (NEW.id,NEW.surname)
RETURNING id,
CREATE TABLE DataImport
(
DataImportID serial NOT NULL PRIMARY KEY,
Time timestamp without time zone NOT NULL,
ID_ABC integer NOT NULL,
ID_DEF integer NOT NULL,
ID_HIJ integer NOT NULL,
etc
);
Perhaps you want to not use the around the table and column names.
It makes them
2009/6/1 björn lundin b.f.lun...@gmail.com:
CREATE TABLE DataImport
(
DataImportID serial NOT NULL PRIMARY KEY,
Time timestamp without time zone NOT NULL,
ID_ABC integer NOT NULL,
ID_DEF integer NOT NULL,
ID_HIJ integer NOT NULL,
etc
);
Perhaps you want to not use the
On Mon, Jun 1, 2009 at 2:35 PM, Tom Lane t...@sss.pgh.pa.us wrote:
Sava Chankov sava.chan...@gmail.com writes:
Is there a way to make RETURNING return all view columns?
Something like
CREATE RULE _insert AS ON INSERT TO j DO INSTEAD(
INSERT INTO a (id,name) VALUES (NEW.id, NEW.name);
Hi Tom,
Thank you for pointing out the condition under which this occurs, I
had not made the connection that the check was only occurring when the
value in the other columns with foreign keys are null. I agree 100%
that a strict key equality check that is in general use in the
database should not
Pavel Stehule wrote:
2009/6/1 Grzegorz Jaśkiewicz gryz...@gmail.com:
That's one of things pg xml type lacks ... :/
yes - SQL/XML isn't completed yet
http://wiki.postgresql.org/wiki/XML_Support :(
I believe so some procedure like xml_to_table should be nice.
but plperlu code should be
Hello
I have a table that I'm trying to refactor and I'm by no means a SQL
expert (apologies if I'm posting to the wrong group). The table in
question has a column that allows NULLs. I want to move that column
into a separate table and set up a FK reference back to the original
table. My question
I have a volatile function (trigger) that gathers NEW.*, parses them, then inserts a
subset of values into a different table.
The table is set up as an inherited table where the parent table has a RULE :
CREATE RULE myrule AS ON INSERT TO mytable WHERE ( myfield = 100 and myfield 200)
DO
Sven W s...@dmv.com writes:
I have a volatile function (trigger) that gathers NEW.*, parses them, then
inserts a
subset of values into a different table.
The table is set up as an inherited table where the parent table has a RULE :
CREATE RULE myrule AS ON INSERT TO mytable WHERE (
Hello --
I'm seeing some odd warning in my postgres (8.3.6) logs.
2009-06-01 20:01:59 UTC (10.11.199.136)LOG: process 7070 still
waiting for ExclusiveLock on extension of relation 43911 of database
43623 after 1001.240 ms
2009-06-01 20:01:59 UTC (10.11.199.136)LOG: process 7070 acquired
Mason Hale masonh...@gmail.com writes:
I'm seeing some odd warning in my postgres (8.3.6) logs.
2009-06-01 20:01:59 UTC (10.11.199.136)LOG: process 7070 still
waiting for ExclusiveLock on extension of relation 43911 of database
43623 after 1001.240 ms
Have you looked up the OIDs to see
This query was giving us good-enough results on our old system. The
estimates don't have to be absolutely accurate, just ballpark figures.
Also we are estimating the size of zipped shapefiles, not textual
geometries.
Our tests show that such sizes are quite accurate for medium/large
datasets when
Craig de Stigter craig.destig...@koordinates.com writes:
Does anyone have any idea why these numbers would be 4 times as big in
Postgres 8.3.7 ?
It still doesn't make any sense to me that you're getting values larger
than the BLCKSZ. If you look into where that's coming from you might
get a
2009/6/2 björn lundin b.f.lun...@gmail.com
CREATE TABLE DataImport
(
DataImportID serial NOT NULL PRIMARY KEY,
Time timestamp without time zone NOT NULL,
ID_ABC integer NOT NULL,
ID_DEF integer NOT NULL,
ID_HIJ integer NOT NULL,
etc
);
Perhaps you want to not use
I’m trying to connect ruby to postgres on ubuntu and the only link I
found that has the library is down. Does anyone have the postgres
library for ruby? Or direct me to it?
Yeah, I think this is an area that we need to address if we want to see
wider adoption of Postgres. I started out to
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