From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
---|---|
To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
Cc: | Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Rafia Sabih <rafia(dot)sabih(at)enterprisedb(dot)com>, Rajkumar Raghuwanshi <rajkumar(dot)raghuwanshi(at)enterprisedb(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Partition-wise join for join between (declaratively) partitioned tables |
Date: | 2017-10-05 13:49:46 |
Message-ID: | CA+Tgmob7cQrKxTcaUckmj6YSbbqsgOt+5pu5JjTPaKgHyOFFyA@mail.gmail.com |
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On Thu, Oct 5, 2017 at 9:48 AM, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
> Robert Haas wrote:
>> Regarding nomenclature and my previous griping about wisdom, I was
>> wondering about just calling this a "partition join" like you have in
>> the regression test. So the GUC would be enable_partition_join, you'd
>> have generate_partition_join_paths(), etc. Basically just delete
>> "wise" throughout.
>
> If I understand correctly, what's being used here is the "-wise" suffix,
> unrelated to wisdom, which Merriam Webster lists as "adverb combining
> form" here https://www.merriam-webster.com/dictionary/wise (though you
> have to scroll down a lot), which is defined as
>
> 1 a :in the manner of * crabwise * fanwise
> b :in the position or direction of * slantwise * clockwise
> 2 :with regard to :in respect of * dollarwise
>
> According to that, the right way to write this is "partitionwise join"
> (no dash), which means "join in respect of partitions", "join with
> regard to partitions".
I'm fine with that, if others like it.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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