From: | ian link <ian(at)ilink(dot)io> |
---|---|
To: | Josh Berkus <josh(at)agliodbs(dot)com> |
Cc: | Craig Ringer <craig(at)2ndquadrant(dot)com>, Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Support for RANGE ... PRECEDING windows in OVER |
Date: | 2013-07-01 07:05:36 |
Message-ID: | CAOOwM5LZ7E0SHa7nSYs44iXqWE20CAShDekOVtnZ6R8O5h0Bgg@mail.gmail.com |
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Lists: | pgsql-hackers |
Definitely not this week. Hopefully for next commit fest.
On Sun, Jun 30, 2013 at 9:56 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
> On 06/30/2013 08:54 PM, ian link wrote:
> > I found some time and I think I am up to speed now. I finally figured out
> > how to add new operator strategies and made a little test operator for
> > myself.
> >
> > It seems pretty clear that assuming '+' and '-' are addition and
> > subtraction is a bad idea. I don't think it would be too tricky to add
> > support for new operator strategies. Andrew Gierth suggested calling
> these
> > new strategies "offset -" and "offset +", which I think describes it
> pretty
> > well. I assigned the operator itself to be "@+" and "@-" but that can
> > obviously be changed. If this sounds like a good path to you guys, I will
> > go ahead and implement the operators for the appropriate types. Please
> let
> > me know if I am misunderstanding something - I am still figuring stuff
> out
> > :)
> >
> > Aside from the opclass stuff, there were some other important issues
> > mentioned with the original RANGE support. I think I will address those
> > after the opclass stuff is done.
>
> Are these things you plan to get done this week, or for next CommitFest?
>
> --
> Josh Berkus
> PostgreSQL Experts Inc.
> http://pgexperts.com
>
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