Scott Marlowe wrote:
Sebastian Böhm wrote:
I have a table with a lot of columns (text and integer).
It currently has 3Mio Rows.
Updating a column in all rows (integer) takes endless (days).
I'm afraid you may not understand how postgresql's MVCC implementation
works here. Updating
On Tue, Dec 9, 2008 at 3:17 AM, Albe Laurenz [EMAIL PROTECTED] wrote:
Scott Marlowe wrote:
Sebastian Böhm wrote:
I have a table with a lot of columns (text and integer).
It currently has 3Mio Rows.
Updating a column in all rows (integer) takes endless (days).
I'm afraid you may not
On Tue, Dec 9, 2008 at 9:13 PM, Scott Marlowe [EMAIL PROTECTED]wrote:
I'm pretty sure you'd have to vacuum still in between runs or the
extra fill factor space would only get used the first time. I.e.:
create table fill factor 50%
load data into table
update whole table -- 50% free space
Hi,
I have a table with a lot of columns (text and integer).
It currently has 3Mio Rows.
Updating a column in all rows (integer) takes endless (days).
The column I update is not indexed.
How can I tune postgres to do this much more quickly?
VMstat looks like this:
r b swpd free buff
try rewriting it to something like:
update users set price = p.price from prices p where p.type =
'normal_price' and p.currency = users.currency;
--
Sent via pgsql-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
2008/12/8 Grzegorz Jaśkiewicz [EMAIL PROTECTED]
try rewriting it to something like:
update users set price = p.price from prices p where p.type =
'normal_price' and p.currency = users.currency;
also avoid fake updates:
update users set price = p.price from prices p where p.type =
On Mon, Dec 8, 2008 at 3:28 AM, Sebastian Böhm [EMAIL PROTECTED] wrote:
Hi,
I have a table with a lot of columns (text and integer).
It currently has 3Mio Rows.
Updating a column in all rows (integer) takes endless (days).
I'm afraid you may not understand how postgresql's MVCC
