Re: dumping recursive views broken in master

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: dumping recursive views broken in master
Date: 2012-10-12 18:48:46
Message-ID: 17389.1350067726@sss.pgh.pa.us
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Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> CREATE VIEW sums_1_100 AS
> WITH RECURSIVE t(n) AS (
> VALUES (1)
> UNION ALL
> SELECT n+1 FROM t WHERE n < 100
> )
> SELECT sum(n) FROM t;

> dumps as

> CREATE VIEW sums_1_100 AS
> WITH RECURSIVE t(n) AS (VALUES (1) UNION ALL SELECT (t_1.n + 1) FROM
> t WHERE (t_1.n < 100)) SELECT sum(t.n) AS sum FROM t;

> which doesn't load back, because of this missing FROM item "t_1".

> Evidently, this is related to

> commit 11e131854f8231a21613f834c40fe9d046926387
> Author: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
> Date: Fri Sep 21 19:03:10 2012 -0400

> Improve ruleutils.c's heuristics for dealing with rangetable aliases.

Oops. I'll take a look.

regards, tom lane

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