Hi Tom
Thanks for the quick response and useful information, having looked at
the current postgresql.conf file the locale settings are as follow
# These settings are initialized by initdb, but they can be changed.
lc_messages = 'en_US.UTF-8' # locale for system
error message
# strings
lc_monetary = 'en_US.UTF-8' # locale for monetary
formatting
lc_numeric = 'en_US.UTF-8' # locale for number
formatting
lc_time = 'en_US.UTF-8' # locale for time
formatting
How can I go about changing these to the C locale, would a simple change
in postgresql.conf be o.k I have read that an initdb might be required ?
The postgres install is currently in use any hints on the best way to go
about doing this making sure all my other settings are maintained ?
Thanks again for your help in this matter
Fran
-----Original Message-----
From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
Sent: 27 July 2009 15:00
To: Thorne, Francis
Cc: pgsql-admin@postgresql.org
Subject: Re: [ADMIN] Slow adding Large Indexes
"Thorne, Francis" <thornef@cromwell.co.uk> writes:
> The problem I have is that it takes around 15 mins to insert the data
> into the table which is a massive improvement from the old server but
it
> then takes 40 mins to create two indexes one 1GB index and another
that
> is a 2GB index this is considerably slower than on the older server.
If these are indexes on textual data, maybe you accidentally changed
from C locale to some other locale. All the other ones are slower to
compare text strings, sometimes massively so.
regards, tom lane
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