Re: WIP: Covering + unique indexes.

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: Andrew Gierth <andrew(at)tao11(dot)riddles(dot)org(dot)uk>
Cc: Teodor Sigaev <teodor(at)sigaev(dot)ru>, Alexander Korotkov <a(dot)korotkov(at)postgrespro(dot)ru>, Anastasia Lubennikova <a(dot)lubennikova(at)postgrespro(dot)ru>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: WIP: Covering + unique indexes.
Date: 2018-04-07 20:56:44
Message-ID: CAH2-WznnBKxS9UkELeaxHqmNmRLnV70vm_UbFrm2YDh_ukQZRw@mail.gmail.com
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On Sat, Apr 7, 2018 at 1:52 PM, Andrew Gierth
<andrew(at)tao11(dot)riddles(dot)org(dot)uk> wrote:
> Support for testing amcaninclude via
> pg_indexam_has_property(oid,'can_include') seems to be missing?
>
> Also the return values of pg_index_column_has_property for included
> columns seem a bit dubious... should probably be returning NULL for most
> properties except 'returnable'.
>
> I can look at fixing these for you if you like?

I'm happy to accept your help with it, for one.

--
Peter Geoghegan

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