From: Tom Lane <tgl@sss.pgh.pa.us>
To: tushar <tushar.ahuja@enterprisedb.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: pg_upgrade failed if view contain natural left join condition
Date: Thu, 20 Jul 2017 09:53:23 -0400
Message-ID: <7383.1500558803@sss.pgh.pa.us> (raw)
In-Reply-To: <98b283cd-6dda-5d3f-f8ac-87db8c76a3da@enterprisedb.com>
References: <98b283cd-6dda-5d3f-f8ac-87db8c76a3da@enterprisedb.com>
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tushar <tushar.ahuja@enterprisedb.com> writes:
> postgres=# create table t(n int);
> CREATE TABLE
> postgres=# create table t1(a int);
> CREATE TABLE
> postgres=# create view ttt1 as SELECT e.n FROM t e NATURAL LEFT JOIN t1 d;
> CREATE VIEW
You realize of course that that's a pretty useless join definition.
Still, yes, we do need to reverse-list the view with correct syntax.
Probably t LEFT JOIN t1 ON TRUE would do it.
> I think -this issue should be there in the older branches as well but
> not checked that.
[experiments] Seems to be wrong back to 9.3. Although I have a feeling
this might be a mistake in a back-patched bug fix, so that it'd depend
on which 9.3.x you looked at.
regards, tom lane
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To: pgsql-hackers@postgresql.org
Cc: tgl@sss.pgh.pa.us, tushar.ahuja@enterprisedb.com
Subject: Re: pg_upgrade failed if view contain natural left join condition
In-Reply-To: <7383.1500558803@sss.pgh.pa.us>
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