From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
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To: | Petr Jelinek <petr(at)2ndquadrant(dot)com> |
Cc: | Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Jaime Casanova <jaime(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Tomáš Vondra <tv(at)fuzzy(dot)cz> |
Subject: | Re: TABLESAMPLE patch |
Date: | 2015-01-29 16:08:55 |
Message-ID: | CA+TgmoZPyoVL4v9sR-DsjJro_O+-y2gN_FdTZyPDe+vkbFBf6g@mail.gmail.com |
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Lists: | pgsql-hackers |
On Wed, Jan 28, 2015 at 5:19 AM, Petr Jelinek <petr(at)2ndquadrant(dot)com> wrote:
> Yes, that's my view too. I would generally be for that change also and it
> would be worth it if the code was used in more than one place, but as it is
> it seems like it will just add code/complexity for no real benefit. It would
> make sense in case we used sequential scan node instead of the new node as
> Amit also suggested, but I remain unconvinced that mixing sampling and
> sequential scan into single scan node would be a good idea.
Based on previous experience, I expect that any proposal to merge
those nodes would get shot down by Tom with his laser-guided atomic
bazooka faster than you can say "-1 from me regards tom lane".
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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