pg.ddx.io  pgsql-hackers@postgresql.org mailing list archive  

help / color / mirror / Atom feed
From: Tom Lane <tgl@sss.pgh.pa.us>
To: tsunakawa.takay@fujitsu.com <tsunakawa.takay@fujitsu.com>
Cc: 'Tomas Vondra' <tomas.vondra@enterprisedb.com>
Cc: Amit Langote <amitlangote09@gmail.com>
Cc: Zhihong Yu <zyu@yugabyte.com>
Cc: Andrey V. Lepikhov <a.lepikhov@postgrespro.ru>
Cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: pgsql-hackers@postgresql.org <pgsql-hackers@postgresql.org>
Subject: Re: POC: postgres_fdw insert batching
Date: Wed, 20 Jan 2021 21:03:46 -0500
Message-ID: <799652.1611194626@sss.pgh.pa.us> (raw)
In-Reply-To: <TYAPR01MB2990DB767E314A72A063EA32FEA10@TYAPR01MB2990.jpnprd01.prod.outlook.com>
References: <20200628151002.7x5laxwpgvkyiu3q@development>
	<16fcfd4c-2d5e-67f7-fa69-9b5d119bac52@enterprisedb.com>
	<TYAPR01MB299026DB0E91E513664C162FFEA30@TYAPR01MB2990.jpnprd01.prod.outlook.com>
	<ba58f299-d50b-f347-4a0f-778cb6ac5588@enterprisedb.com>
	<TYAPR01MB2990A053D902EDF6244090BDFEA30@TYAPR01MB2990.jpnprd01.prod.outlook.com>
	<CA+HiwqH-7+L0B7iNWcAe8auWch=-EnbRkLYMG-27K4rUKsWKOQ@mail.gmail.com>
	<TYAPR01MB29903CBD68C9DA42B67D9EB6FEA30@TYAPR01MB2990.jpnprd01.prod.outlook.com>
	<CA+HiwqGiwxSc8kc0PgPef5DgnP7NTRHVyAZJG3zxY4XBivbfLQ@mail.gmail.com>
	<9d94c863-ce7c-ea7f-6b84-834c98929e2f@enterprisedb.com>
	<CA+HiwqHTeQKqRpCA3TGZSCYTVOcUoUdXeSrRfjRRcmT1CfM1oA@mail.gmail.com>
	<7e70a11e-cf5d-2e5f-a802-274c5e0e236b@enterprisedb.com>
	<eb81a728-4ac3-823e-0017-54a9491f5600@enterprisedb.com>
	<CALNJ-vSt7Fn=oj4NxAyCDQQF-1yxmP=LYyQwciApg4L+QdYJQw@mail.gmail.com>
	<3ca9496f-0827-bf21-b709-593de63440a5@enterprisedb.com>
	<CA+HiwqF2nZX2VxZy0tL_BfuEQgof=w3b54Ei73LdwOx7sVemNg@mail.gmail.com>
	<4faa3d! 09-0fc8-c4d6-7aec-87428fabd161@enterprisedb.com>
	<TYAPR01MB2990DB767E314A72A063EA32FEA10@TYAPR01MB2990.jpnprd01.prod.outlook.com>

"tsunakawa.takay@fujitsu.com" <tsunakawa.takay@fujitsu.com> writes:
> Just for learning, could anyone tell me what this loop for?  I thought current Postgres's DML supports a single target table, so it's enough to handle the first element of mtstate->resultRelInfo.

The "single target table" could be partitioned, in which case there'll be
multiple resultrelinfos, some of which could be foreign tables.

			regards, tom lane





view thread (115+ messages)  latest in thread

Message-ID: <799652.1611194626@sss.pgh.pa.us>
Permalink:  ../799652.1611194626@sss.pgh.pa.us/
Also on:    postgresql.org/message-id/799652.1611194626@sss.pgh.pa.us

 · 

reply
Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-hackers@postgresql.org
  Cc: tgl@sss.pgh.pa.us, tsunakawa.takay@fujitsu.com, tomas.vondra@enterprisedb.com, amitlangote09@gmail.com, zyu@yugabyte.com, a.lepikhov@postgrespro.ru, tomas.vondra@2ndquadrant.com
  Subject: Re: POC: postgres_fdw insert batching
  In-Reply-To: <799652.1611194626@sss.pgh.pa.us>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox