Hi everyone,
I have a big table (more than 10 millions rows) and create an index
(three columns) ( the index is not created with creating the table). Within
one day of the index created, the performance of query searching is ok. But
with more than several thousands rows of data inserted
by r_max01_sloc desc
##
2010/1/10 Scott Marlowe scott.marl...@gmail.com
On Sat, Jan 9, 2010 at 2:46 PM, Andreas Kretschmer
akretsch...@spamfence.net wrote:
Stefan Kaltenbrunner ste...@kaltenbrunner.cc wrote:
Andreas Kretschmer wrote:
zxo102 ouyang zxo
Hi everyone,
I am using postgresql 8.3-beta3. I have a table 'test' with three fields:
sid data date
11.1 2009-09-01 1:00:00
12.1 2010-01-01 1:00:20
23.1 2009-09-01 1:00:10
Hi everyone,
I have a big query (see below attached) in which all where clauses have
sc.channel = replace(split_part(trim(both ' ' from
ec.instantance_flux),'__',2),'channel','myChannel').
The value of ec.instantance_flux is like the format: vx6000__12channel. I
want to replace channel with
Hi evreyone,
I have a table with two fields
field1field2
1 1channel
2 2channel
3 3channel
Now I want to add the third one with the value
replace(field2,'channel','') like
field1field2 field3
1 1channel
Hi everyone,
I have a table test which has three fields:
id data date_time
12 2009-10-1 12:12:12
110 2009-10-1 12:22:10
23 2009-10-1 12:10:32
21 2009-10-1 12:30:32
with the sql:
select max(data), id from test
Hi there,
I have an application with a database (pgsql) which has a big table (
10 millions records) in windows 2003. Some times, I need to install the new
version of the application. Here is what I did: 1. back up the big table
via pgadmin III, 2. stop the pgsql in the old version of the
Grzegorz,
Thank you very much. I will do that. I have another question: if I do the
following steps, does it hurt pgsql?
step 1. stop the pgsql in the old version of the application; the whole
application is installed in c:/xbop and pgsql is located in c:/xbop/pgsql;
step 2. rename c:/xbop to
Hi there,
Thanks for your suggestions. I do have an application running on the machine
all the time. In fact, the application keeps writing real-time monitoring
data into the database. Based on my understanding of your messages, I can't
do anything to speed up the first-time-searching. Probably I
Hi all,
I have a table which has more than 10millions records in pgsql which is
running on window 2003. During night, nobody search the database.
In morning, when people start to the application, it will take more than 30
seconds to get database back. After several times of same searching, the
Hi everyone,
My data with same timestamp 2008-11-12 12:12:12 in postgresql are as
follows
rowid data unitchannel create_on
--
11.5 MPa channel1 2008-11-12 12:12:12
2
Hi everyone,
My data with same timestamp 2008-11-12 12:12:12 in postgresql are as
follows
rowid data unitchannel create_on
--
11.5 MPa channel1 2008-11-12 12:12:12
2
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