Re: question about partitioning

I'm trying to figure out the logic behind the date parameters though. I
don't have to worry at all about partition size.

Joshua Gooding

On 6/24/2010 3:37 PM, Little, Douglas wrote:
> I don't know how you would partition by size.
> Date is a good candidate, and roughly wouldn't you have the same number of tx's/day
> You'll only benefit query performance if you include the partitioning column in the where clause.
> If you have a surrogate pk, you could also use this to partition. Using a range key you would probably get relatively constant partition size.
>
> Doug
>
>
>
> -----Original Message-----
> From: pgsql-sql-owner(at)postgresql(dot)org [mailto:pgsql-sql-owner(at)postgresql(dot)org] On Behalf Of Joshua Gooding
> Sent: Thursday, June 24, 2010 2:31 PM
> To: pgsql-sql(at)postgresql(dot)org
> Subject: Re: [SQL] question about partitioning
>
> I think I replied to the individual and not to the list before....
>
> As of right now size doesn't matter, I need to partition it via a date.
> 10 partitions, 10 weeks worth of data.
>
> I was thinking of partitioning it off every 32GB of data, but that is
> not exactly what I am looking to do.
>
> Joshua Gooding
>
>
> On 6/24/2010 11:06 AM, Jasen Betts wrote:
>
>> On 2010-06-24, Joshua Gooding<JGooding(at)ttitech(dot)net> wrote:
>>
>>
>>> Right now I am in the process of migrating an Oracle DB over to Postgres
>>> 8.4.3. The table is partitioned by size. Is there anyway to partition
>>> the new postgres table by size? I created some partitions for the new
>>> table, but I didn't give postgres any rules to partition by, so I have
>>> 250M test records in one table. Any ideas or thoughts on how to build
>>> the rules for the table by size would be greatly appreciated.
>>>
>>>
>> by size of what?
>>
>>
>>
>