Re: Postgres 11, partitioning with a custom hash function

From: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>
To: Harry B <harrysungod(at)gmail(dot)com>
Cc: "pgsql-generallists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Postgres 11, partitioning with a custom hash function
Date: 2018-10-05 00:39:55
Message-ID: CAKJS1f9cxW86OwhkgTjUO4DdAYOHUSTzLQQE9EO7r_R=nLoOYw@mail.gmail.com
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On 5 October 2018 at 09:43, Harry B <harrysungod(at)gmail(dot)com> wrote:
> Now the big question: How scared should I be relying on this? I don't mind
> it breaking on major version upgrades (which would mean I need to dump &
> restore my entire set), but how likely is it to change unannounced in a
> minor/security release? Unless of course, you break it in a way that makes
> custom-hash function impossible.

I don't see how we could possibly change it once v11 is out the door.
Such a change would break pg_upgrade and I imagine we want that to
work for a long time to come yet, at least until there is some other
reason that is worthy of breaking it. The bar is likely set pretty
high for that.

--
David Rowley http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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