Horton

Re: BUG #17088: FailedAssertion in prepagg.c

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: cyg0810@gmail.com, pgsql-bugs@lists.postgresql.org
Date: 2021-07-07T11:00:17Z
Lists: pgsql-bugs 
On Wed, Jul 07, 2021 at 06:33:07AM +0000, PG Bug reporting form wrote:
> run the following sql command through client and the PostgreSQL database
> process will crash:
> 
> CREATE TEMP TABLE v0 ( v1 INT PRIMARY KEY ) ON COMMIT DELETE ROWS ; 
> SELECT FROM ( VALUES ( ( SELECT - - 84 FROM v0 LIMIT - -1 ) ) ) v1 ( v1 )
> GROUP BY ROLLUP ( v1 , v1 ) , ROLLUP ( ROW ( ) , ROW ( - - - - -128 ,
> 6099928.000000 ) , v1 ) ORDER BY v1 = v1 AND v1 = - - ( SELECT GROUPING ( v1
> ) GROUP BY v1 ) ASC FETCH FIRST ROWS WITH TIES

Reproduced here, thanks for the test case.  As far as I can see, this
is not limited to 14.
--
Michael

Commits

  1. Fix assorted missing logic for GroupingFunc nodes.