Re: Backend assertion failure on \d

Alan Li wrote:
> Running the following against HEAD and REL8_3_6:

Same problem exists in 8.2 and 8.1 as well. The code in ruleutils.c is 
similar in 8.0 as well, except that the Assertion isn't there.

> create table foo (a varchar(500));
> create view bar as select case foo.a when '1' then 'foo' else 'bar' end as
> fa from foo;
> \d bar
> 
> Causes as assertion in the backend:
> 
> TRAP: FailedAssertion("!(((((Node*)(((list_head(((OpExpr *)
> w)->args))->data.ptr_value)))->type) == T_CaseTestExpr) ||
> ((((Node*)(((list_head(((OpExpr *) w)->args))->data.ptr_value)))->type) ==
> T_Const))", File: "ruleutils.c", Line: 4587
> )
> LOG:  server process (PID 28408) was terminated by signal 6: Aborted
> 
> Attached is a simple patch that appears to fix this problem, not sure if it
> suffices in general.

Looks good to me, at least.

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com