[GENERAL] Migrating from 8.3 to 9.1 - date/time storage types do not match

2012-08-22 Thread Scott Briggs
So we have a large TB database that we need to migrate to 9.1 and I'm wondering if there's a way to do this process in stages. Since the date/time storage types changes between 8.3 and 8.4, I realize we'll have to dump the database and my plan is to create a backup using pg_start_backup(), run

Re: [GENERAL] Migrating from 8.3 to 9.1 - date/time storage types do not match

2012-08-22 Thread John R Pierce
On 08/22/12 2:17 PM, Scott Briggs wrote: So we have a large TB database that we need to migrate to 9.1 and I'm wondering if there's a way to do this process in stages. Since the date/time storage types changes between 8.3 and 8.4, I realize we'll have to dump the database and my plan is to

Re: [GENERAL] Migrating from 8.3 to 9.1 - date/time storage types do not match

2012-08-22 Thread Alan Hodgson
On Wednesday, August 22, 2012 05:17:10 PM Scott Briggs wrote: So we have a large TB database that we need to migrate to 9.1 and I'm wondering if there's a way to do this process in stages. Since the date/time storage types changes between 8.3 and 8.4, I realize we'll have to dump the

Re: [GENERAL] Migrating from 8.3 to 9.1 - date/time storage types do not match

2012-08-22 Thread Alan Hodgson
On Wednesday, August 22, 2012 02:43:05 PM Alan Hodgson wrote: The most likely way to get this done is with Slony. Setup a Slony slave, upgrade the slave to 9.1 with a dump/reload, run it and let Slony catch it up, and then promote it to be the Slony cluster master and switch your clients over.