Re: create table like: ACCESS METHOD

From: Justin Pryzby <pryzby(at)telsasoft(dot)com>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: Michael Paquier <michael(at)paquier(dot)xyz>, pgsql-hackers(at)postgresql(dot)org, Jacob Champion <pchampion(at)vmware(dot)com>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Ashwin Agrawal <aagrawal(at)pivotal(dot)io>, Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Robert Haas <robertmhaas(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
Subject: Re: create table like: ACCESS METHOD
Date: 2021-01-19 21:03:31
Message-ID: 20210119210331.GN8560@telsasoft.com
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On Wed, Dec 30, 2020 at 12:33:56PM +0000, Simon Riggs wrote:
> There are no tests for the new functionality, please could you add some?

Did you look at the most recent patch?

+CREATE ACCESS METHOD heapdup TYPE TABLE HANDLER heap_tableam_handler;
+CREATE TABLE likeam() USING heapdup;
+CREATE TABLE likeamlike(LIKE likeam INCLUDING ALL);

Also, I just realized that Dilip's toast compression patch adds "INCLUDING
COMPRESSION", which is stored in pg_am. That's an implementation detail of
that patch, but it's not intuitive that "including access method" wouldn't
include the compression stored there. So I think this should use "INCLUDING
TABLE ACCESS METHOD" not just ACCESS METHOD.

--
Justin

Attachment Content-Type Size
v3-0001-create-table-like-.-including-ACCESS-METHOD.patch text/x-diff 6.9 KB

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