Re: Fail Fast In CTAS/CMV If Relation Already Exists To Avoid Unnecessary Rewrite, Planning Costs

Michael Paquier <michael@paquier.xyz>

From: Michael Paquier <michael@paquier.xyz>
To: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
Cc: "Hou, Zhijie" <houzj.fnst@cn.fujitsu.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2020-12-30T12:55:47Z
Lists: pgsql-hackers
On Thu, Dec 24, 2020 at 01:23:40PM +0900, Michael Paquier wrote:
> Please note that I have added an entry in the CF app for the moment so
> as we don't lose track of it:
> https://commitfest.postgresql.org/31/2892/

I have been able to look at that again today, and applied it.  I have
tweaked a bit the comments, and added an elog(ERROR) as a safety net
for explain.c if the IFNE code path is taken for an object type that
is not expected with CreateTableAsStmt.
--
Michael

Commits

  1. Sanitize IF NOT EXISTS in EXPLAIN for CTAS and matviews