Re: Partition Rule Updating While Running?

On Fri, Jul 07, 2006 at 04:39:53AM -0400, Gene wrote:
> Sorry if this is a duplicat, someone suggested posting to general as well,
>
> I'm using PostgreSQL 8.1.4 in a Hibernate Application and I am
> attempting to use partitioning via Inherited tables. At first I was
> going to create a rule per sub-table based on a date range, but found
> out with multiple rules postgres will only return the affected-row
> count on the last rule which gives Hibernate problems. So now I'm
> thinking the way to do it is just have one rule at a time and when I
> want to start appending data to a new partition, just change the rule
> on the parent table and also update the constraint on the last table
> to reflect the date ranges contained so that constraint_exclusion will
> work. this should perform better also. For instance

Why not just decide somedate2 in advance and create the constraint as a
range to start with. Then, a few days before somedate2 add a new
constraint for between somedate2 and somedate 3. Then you never have to
update any constraints...

Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.