;
which does return just one row for t1_a =3 for all postgres versions I
have currently available.
Edmund
---(end of broadcast)---
TIP 6: explain analyze is your friend
Tom Lane wrote:
Edmund Bacon [EMAIL PROTECTED] writes:
Consider the following:
...
Note that I get 2 rows where t1_a = 3.
Are you getting a Merge Right Join plan for that? If so, you're likely
getting bit by this bug:
2006-03-17 14:38 tgl
That's correct. After doing
[EMAIL PROTECTED] writes:
Hi,
If you have two tables, each with a column called keys and a column
called values, and they are both incomplete, such as:
table 1:
keys | values
-+--
1| (null)
2| two
3| (null)
table 2:
keys | values
-+-
1
Andrus Moor [EMAIL PROTECTED] writes:
I have a table containing month column in format mm.
create table months ( tmkuu c(7));
insert into months values ('01.2005');
insert into months values ('02.2005');
How to create select statement which converts this column to date type
Andrus [EMAIL PROTECTED] writes:
I have a database of e-mail addresses.
I want to select the email addresses which are not valid:
do not contain exactly one @ character,
contain ;' , characters or spaces etc.
What is the WHERE clause for this ?
There was a thread here not so
[EMAIL PROTECTED] (Joshua D. Drake) writes:
Fernando Lujan wrote:
Hi folks,
I have a table wich contains my users... I want to insert to each
user
a random password, so I need a random function. Is there such function
in Postgres? I just found the RANDOM which generates values between
- this causes the
indexes to be used - still trying to make sure it is a legitimate method).
Regards!
Ed
-- Forwarded message --
Date: Fri, 29 Jul 2005 14:23:29 -0400 (EDT)
From: Edmund Dengler [EMAIL PROTECTED]
To: Postgresql-General pgsql-general@postgresql.org
Subject: Re: [GENERAL
Greetings!
I have already increased the stats from 10 to 100. In addition, if I
specify individual tables, then the indexes are used. However, when I go
through the inherits, then indexes are not used. I will try and expand
the statistics, but suspect it is not the root cause of the problem.
Greetings!
I am using inherits to partition several tables. When I perform a query
on another table, and then try to join against an inherited table set, the
optimizer does not use any indexes to perform the join.
This is 8.0.1. Is this fixed in 8.0.2 or 8.0.3?
The query:
explain
select *
from
to compare against), I get sequential scanning,
event though the set size is only a single element.
Regards!
Ed
On Fri, 29 Jul 2005, Edmund Dengler wrote:
Greetings!
I am using inherits to partition several tables. When I perform a query
on another table, and then try to join against an inherited
[EMAIL PROTECTED] (Leonel Nunez) writes:
John Wells wrote:
Guys,
I have a number of jpegs and tiffs that are stored in a bytea field in a
PostgreSQL database by a Java program using Hibernate.
I need to copy these out to a flat file via pgsql for viewing, etc. I've
tried
psql -c
Greetings!
We have a table with more than 250 million rows. I am trying to delete the
first 100,000 rows (based on a bigint primary key), and I had to cancel
after 4 hours of the system not actually finishing the delete. I wrote a
script to delete individual rows 10,000 at a time using
, I would expect I/O issues/bounds
and not CPU.
Regards!
Ed
On Fri, 10 Jun 2005, Richard Huxton wrote:
Edmund Dengler wrote:
Greetings!
We have a table with more than 250 million rows. I am trying to delete the
first 100,000 rows (based on a bigint primary key), and I had to cancel
on some log info in postgresql.conf and I saw that for each row
deleted 4 selects were issued to check FK. I drop those FK and the
after the delete was taking less than a second.
Hope it help
/David
Regards!
Ed
On Fri, 10 Jun 2005, Richard Huxton wrote:
Edmund Dengler wrote
Greetings!
Is there an issue when a large number of INHERITS tables exist for
planning?
We have 2 base tables, and use INHERITS to partition the data. When we get
around 2000-2200 sub-tables (approx 1000-1100 per base table), planning a
SELECT statement on the base table (ie, to search all
(Sorry, wrong subject line got sent)
Greetings!
Does anybody know how well the optimizer works when dealing with inherited
tables? I am currently using 8.0.1.
I have a table called eventlog.record_main, and a number of inherited
tables to partition the data (called
Greetings!
Does anybody know how well the optimizer works when dealing with inherited
tables? I am currently using 8.0.1.
I have a table called eventlog.record_main, and a number of inherited
tables to partition the data (called
eventlog_partition._day__record_main). luid is the primary key (all
[EMAIL PROTECTED] (Yudie Pg) writes:
Hello,
I have a table, structure like this:
create table product(
sku, int4 not null,
category int4 null,
display_name varchar(100) null,
rank int4 null
)
let say example data:
sku, category, display_name
===
10001, 5,
[EMAIL PROTECTED] (Jan Sunavec) writes:
I am using libpg.so.
I assume that you mean libpq ?
I tryed find solution for this problem in
internet but, I don't find nothing yet. I have idea get rowcount
throught some function write in C. Or is there any plan add this
feature into PostgreSQL?
[EMAIL PROTECTED] (Jerry Sievers) writes:
Hello.
Anyway, I am often enough having to load Pg databases using SQL COPY
from CSV output written by Excel, that I've had to write a script to
change the quoting behavior from Excel's putting double quotes around
a field having embedded delim
[EMAIL PROTECTED] (Bruno Wolff III) writes:
Using domains is a good way to keep column constraints in just one place.
Speaking of domains, how do you find out what the range of a domain
is?
eg:
test=# create domain fruit as text
check( value in ('apple', 'orange', 'banana', 'pear'));
CREATE
[EMAIL PROTECTED] writes:
Hello,
I'm trying to change the usal | table field separator from the shell
command line:
psql -d ect -f pl_lost.sql -o pl_lost.out.txt -F \t -U asaadmin
But it doesn't work. It keeps the same | separator in the output
file.
Can anyone please help me?
I need
[EMAIL PROTECTED] (Greg Stark) writes:
Geoff Caplan [EMAIL PROTECTED] writes:
Hi folks,
Sorry to ask a newbie SQL question but I'm struggling...
There's no efficient way to write this in standard SQL. However Postgres has
an extension DISTINCT ON that would do it:
select
[EMAIL PROTECTED] (Michael Romagnoli) writes:
What kind of command would I run if I wanted to copy an entire table
(along with renaming it, and, of course, all data from the first table
-
some of which is binary)?
SELECT * INTO newtable FROM oldtable;
Note that this doesn't construct
[EMAIL PROTECTED] (Rick Casey) writes:
CREATE OR REPLACE FUNCTION logPedigreesDel() RETURNS TRIGGER AS '
begin
RAISE EXCEPTION ''OLD.famindid = '', OLD.famindid;
RAISE EXCEPTION ''OLD.famindid = %'', OLD.famindid;
^
return OLD;
end;
'
Greetings!
I have a technical question concerning multi-column indexes and their
implementation. I tried looking for the answr in the docs but couldn't
find anything.
I have the following table:
eventlog= \d agent.record
Table agent.record
Column
Hi Tom!
Yep, there are a large number of host_luid/log_luid combinations (there
are approximatly 5-10 hosts and 1-3 logs per system we are running).
Thanks for the recommended workaround, I'll have a try at it at some point
tomorrow.
Regards!
Ed
On Sat, 15 Jan 2005, Tom Lane wrote:
Edmund
into a variable wuold be
gratefully recieved.
Many Thanks
Edmund
---(end of broadcast)---
TIP 3: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to [EMAIL PROTECTED] so that your
message can get through
[EMAIL PROTECTED] (Vivek Khera) writes:
DP == David Parker [EMAIL PROTECTED] writes:
DP I would like to be able to truncate all of the tables in a schema
DP without worrying about FK constraints. I tried issuing a SET
DP CONSTRAINTS ALL DEFERRED before truncating, but I still get
DP
?
Failing this, is there any way to get PostgreSQL to be a bit smarter in
doing comparisons? I think I'm SOL, but I thought I'd ask anyway.
...Edmund.
---(end of broadcast)---
TIP 6: Have you searched our list archives?
http
[EMAIL PROTECTED] (George Woodring) writes:
I have 2 existing tables in my db:
iss= \d pollgrpinfo
Table public.pollgrpinfo
Column | Type | Modifiers
---++---
pollgrpinfoid | integer| not
[EMAIL PROTECTED] (C G) writes:
Dear All,
I have a simple join query
SELECT c1 FROM t1
INNER JOIN
t2 ON t2.c2 = t1.c2 WHERE t3.c3= t2.c3;
Which gives the expected result but I get the message
NOTICE: adding missing FROM-clause entry for table t3
How do I get rid of this NOTICE,
[EMAIL PROTECTED] (Naeem Bari) writes:
I understand. Makes sense. Is there anyway for my trigger function to
know that it is being called on a delete or on an update? Because I do
need to return new on update... and I really don't want to write 2
different functions, one for update and one
[EMAIL PROTECTED] (mike cox) writes:
I'm running PostgreSQL 8.0 beta 1. I'm using the
earthdistance to find the distance between two
different latitude and logitude locations.
Unfortunately, the result seems to be wrong.
Here is what I'm doing:
select
Robert Fitzpatrick wrote:
I have a function that tells me if a record is positive and negative
based on several field values. I use it in select statements:
ohc= SELECT sample_id, is_wipe_positive(tblleadwipe.sample_id) AS
positive FROM tblleadwipe WHERE hud_building_id IS NOT NULL;
Greetings!
On Fri, 2 Jul 2004, Mike Rylander wrote:
I find that experience does not bear this out. There is a saying a coworker
of mine has about apps that try to solve problems, in this case caching,
that are well understood and generally handled well at other levels of the
software
Hi folks!
A query I am running does not seem to use indexes that are available
(running version 7.4.2). I have the following table:
= \d replicated
Table public.replicated
Column | Type |
Modifiers
unsubscribe
EDMUND ZYNDA
[EMAIL PROTECTED]
FocalBase Internet Solutions
p.
410.751.2093 x219
f.
410.751.2653
www.focalbase.com
image001.gif
)?
Performance? No support from the back-end? Something else?
Regards,
Ed
On Wed, 15 Oct 2003, Tom Lane wrote:
Edmund Dengler [EMAIL PROTECTED] writes:
... I have no real choice in this as there is no way to specify that
NULL == NULL.
The conventional wisdom on this is that if you think you need
The problem I would face is that this still needs to be a sequential scan
in the table rather than an index lookup.
Regards,
Ed
On Tue, 14 Oct 2003, Arthur Ward wrote:
Is the rewrite only for the literal 'X = NULL' or will it do a test
against a value such as 'X = OLD.X' (and rewrite is
Hi all!
I am doing some trigger functions that need to find a tuple in another
table. The problem is that this second table is doing some summarization
work, and I need nulls to equal each other.
Basically, in the trigger I do a:
SELECT INTO ... x
FROM table1
WHERE ...(some
for the 'Not a valid value', but it seems to be quite awkward
when I really do want the NULL.
Regards!
Ed
On Mon, 13 Oct 2003, Bruno Wolff III wrote:
On Mon, Oct 13, 2003 at 21:16:33 -0400,
Edmund Dengler [EMAIL PROTECTED] wrote:
I think if I could do a 'SET TRANSFORM_NULL_EQUALS
Well, if they are locked waiting on vacuum, then vacuum should upgrade
it's priority to the highest waiting process (priority inheritance).
This way, vacuum will be running at a priority level equivalent to who is
waiting on it.
Regards,
Ed
On Thu, 21 Aug 2003, Andrew Sullivan wrote:
On Wed,
Wasn't there a feature in some SQL database which was the equivalent of
UPDATE OR INSERT ... based on the primary key? Would this accomplish what
you want (I know that I have a desire for this feature a couple of times,
as I simply have code or triggers to essentially do the equivalent)? Is
this a
On Thu, 21 Aug 2003, Andrew Sullivan wrote:
On Thu, Aug 21, 2003 at 12:05:28PM -0400, Edmund Dengler wrote:
Well, if they are locked waiting on vacuum, then vacuum should upgrade
it's priority to the highest waiting process (priority inheritance).
This way, vacuum will be running
What about the use of priority inheritance to deal with the issue of
priority inversion (a standard methodology within the real-time world)?
Then we could have priorities, but still have low priority processes
bumped up if a high level one is waiting on them.
Regards,
Ed
On Wed, 20 Aug 2003,
You need to convert the int's to bigints.
select id where col1 = 1::bigint and col2 = 1::bigint
Regards,
Ed
-Original Message-
From: Tim McAuley [EMAIL PROTECTED]
Date: Wed, 30 Jul 2003 13:46:46
To:[EMAIL PROTECTED]
Subject: [GENERAL] Unused Indexes
Hi,
I have a table which I have
also rather not use it as it will be easier to port
my system to other servers if it just needs a plain vanilla install.
I am currently using Postgresql 7.0.3 on RedHat 6.2 (x86) and also on
YellowDog 1.2 (PPC). The web server is Apache 1.3.12 with PHP 4.0.x.
Thanks,
Edmund
Pardon the intrusion, but I have a dilemma which I cannot find
the answer to, after searching the newsgroups, documentation,
and mailing lists -- My postmaster will not start.
Below is a message I've posted in several newsgroups. If you
could make ANY suggestions on getting postmaster to
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