Re: Declarative partitioning

On 19 August 2015 at 21:10, Josh Berkus <josh(at)agliodbs(dot)com> wrote:

> On 08/19/2015 04:59 AM, Simon Riggs wrote:
> > I like the idea of a regular partitioning step because it is how you
> > design such tables - "lets use monthly partitions".
> >
> > This gives sanely terse syntax, rather than specifying pages and pages
> > of exact values in DDL....
> >
> > PARTITION BY RANGE ON (columns) INCREMENT BY (INTERVAL '1 month' )
> > START WITH value;
>
> Oh, I like that syntax!
>
> How would it work if there were multiple columns? Maybe we don't want
> to allow that for this form?
>

If we went with that, and had:

CREATE TABLE orders (order_id serial, order_date date, item text)
PARTITION BY RANGE ON (order_date) INCREMENT BY (INTERVAL '1 month')
START WITH '2015-01-01';

Where would the following go?

INSERT INTO orders (order_date, item) VALUES ('2014-11-12', 'Old item');

Would there automatically be an "others" partition? Or would it produce an
error and act like a constraint?

Thom