Ludwig Kniprath napisal 24.10.2008 11:45:
Join-table
mn_2_r_id mn_2_c_id
1 1
1 2
1 3
1 4
2 1
3 2
3 5
4 3
...
(in real database this relation is an gis-relation with thousands of
rivers and countries, related by
[EMAIL PROTECTED] napisal 24.10.2008 12:17:
Hi,
How with to emulate function TRANSFORM from Access in Postgress?
Transform in Access: http://msdn.microsoft.com/en-us/library/bb208956.aspx
You can find some useful cross tab functions here:
mike stanton napisal 24.10.2008 21:03:
Hello everyone.
We have a simple problem...that we have keys that include blanks and
various other commonly used characters like ,, ; and -. For some
reason, the select we have, nothing complicated, ignores these special
characters and happily sorts by
Hi,
I have a question concerning the topic patitioning.
I have a table with millions of records and I would like to partition
it. I have already read the documentation but it could not answer my
question.
My question is, the following:
Do I have to create the master and child tables and so
There is no fast way to split an existing table into partitions. Create a
new parent table, create partitions, create the insert trigger, and then
INSERT INTO newparent SELECT * FROM unpartitioned. You may want to split
that into groups if you have many millions of rows.
On Sat, Oct 25, 2008
Bruce Momjian wrote:
I think this is the crux of the problem --- if I subscribed to multiple
email lists, and some have rely going to the list and some have
reply going to the author, I would have to think about the right reply
option every time I send email.
That's not really the case. I
You may want to look at this article for some ideas:
http://www.varlena.com/GeneralBits/110.php
The article talks about doing dynamic schema design for online
surveys... it's pretty interesting.
Aaron Thul
http://www.chasingnuts.com
On Wed, Oct 22, 2008 at 10:59 AM, Thom Brown [EMAIL
That's definitely an option, and that's what I had slated to use as my
backup plan. But I wanted to make sure there wasn't the ability to do it by
host before I went down that path, as it would be a somewhat cleaner fit in
our setup.
Thanks!
Dave
On Tue, Oct 21, 2008 at 1:57 PM, Jeff Davis
I'm still getting a lot of these entries in my eventlog whenever I have a
reasonably large amount of logging:
Event Type:Error
Event Source:PostgreSQL
Event Category:None
Event ID:0
Date:10/22/2008
Time:9:36:28 AM
User:N/A
Computer:--
Hello all,
I inherited a 8.1.x database of size 200GB. This database hasn't been
maintained much (autovac is enabled though).
I been trying to VACUUM this db for the past few days for a couple of
hours/day. The server runs 24x7 so continuous maintenance is not possible
(this is the last
Joey K. wrote:
Is it possible to estimate how long VACUUM on a table might take?
The table size is growing as VACUUM is being performed. I assume I need
reindex after VACUUM is complete.
I run VACUUM from psql and I Ctrl-C it to turn it off is this acceptable?
maintenance_work_mem is
On Sat, Oct 25, 2008 at 9:12 AM, Ati Rosselet [EMAIL PROTECTED] wrote:
I'm still getting a lot of these entries in my eventlog whenever I have a
reasonably large amount of logging:
Event Type:Error
Event Source:PostgreSQL
Event Category:None
Event ID:0
Date:
I wish... no such luck. No virus scanner on the back end (nothing gets on
the server except the database :))
It seems to be a race condition where the old file is closed before the new
file is opened, and the logging attempt fails right at that time. The new
file is created just fine, and from
On Sat, Oct 25, 2008 at 9:21 AM, Joey K. [EMAIL PROTECTED] wrote:
Hello all,
I inherited a 8.1.x database of size 200GB. This database hasn't been
maintained much (autovac is enabled though).
I been trying to VACUUM this db for the past few days for a couple of
hours/day. The server runs
I use dbi-link, work fine, but I have problems when I call mysql
tables linked and these tables are big, maybe a millon records, the
answers is really slow, I need to wait 5 or more minutes to have an
answer in a single query like this select * from table limit 10, I
am thinking maybe dbi-link
Hi all,
Does pgsql provide support for a clustered index? By that I mean can I
specify that the database insert records in the order of a particular
attribute. Many of my queries are time-range based and my row inserts are
done chronologically, so it would benefit to have them sorted by when
On Sat, Oct 25, 2008 at 12:02 PM, Julian Bui [EMAIL PROTECTED] wrote:
Hi all,
Does pgsql provide support for a clustered index? By that I mean can I
specify that the database insert records in the order of a particular
attribute. Many of my queries are time-range based and my row inserts
While I still don't know who to handle returns with scalars and user defined
types mixes, I tested with a function that returns only a SETOF a user defined
type, the behavior is the same as a normal select return. You can use
ReseultSet to traverse and get each column.
CYW
- Original
Hi,
I have the following tables:
Product(id, title, price)
Item(id, product_id, order_id, quantity)
Order(id, user_id, amount, paid)
User(id, name)
What I want to achieve is a query on a specific Product based in its
title. If the product has at least 1 order in which it appears, then
return
On Sat, Oct 25, 2008 at 2:11 PM, Thomas [EMAIL PROTECTED] wrote:
Hi,
I have the following tables:
Product(id, title, price)
Item(id, product_id, order_id, quantity)
Order(id, user_id, amount, paid)
User(id, name)
What I want to achieve is a query on a specific Product based in its
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