From: | amul sul <sulamul(at)gmail(dot)com> |
---|---|
To: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
Cc: | David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: Generating partitioning tuple conversion maps faster |
Date: | 2018-06-25 05:36:41 |
Message-ID: | CAAJ_b96jJne9LyvZ-F3qc5=DE2fXVt4mPdYer+B6+TkCvroFLA@mail.gmail.com |
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On Mon, Jun 25, 2018 at 10:57 AM Amit Langote
<Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> wrote:
>
> On 2018/06/25 14:12, amul sul wrote:
> > On Mon, Jun 25, 2018 at 10:30 AM David Rowley
> > <david(dot)rowley(at)2ndquadrant(dot)com> wrote:
> >>
> > [...]
> >> Given the small size of this patch. I think it's a good candidate for
> >> the July 'fest.
> >>
> >
> > Just a different thought, how about having flag array something like
> > needed_tuple_conv?
> >
> > While loading partdesc, we could calculate that the columns of partition table
> > are aligned with the parent or not?
>
> Yeah maybe, but ISTM, that could be implemented *in addition to* the
> tweaks to convert_tuples_by_name_map that David's proposing, which seem
> helpful in their own right.
>
Yes, I agree.
Regards,
Amul
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