Re: Function call crashes server - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Function call crashes server
Date
Msg-id 27811.1016727554@sss.pgh.pa.us
Whole thread Raw
In response to Re: Function call crashes server  ("Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.at>)
List pgsql-hackers
"Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.at> writes:
>> regression=# SELECT update_pg_pwd();
>> ERROR:  getTypeOutputInfo: Cache lookup of type 0 failed

> Wouldn't it be nice to make this a feature that allows
> stored procedures (void update_pg_pwd ()) ? Correctly register
> this function to not return anything ? This is what the 0 is actually
> supposed to mean here, no ?

No, in this case the procedure is a trigger procedure and is not
supposed to be called directly at all.  But we don't have a
distinguishable signature for triggers as yet.  One of the changes
I'd like to make eventually is that trigger procs take and return
some special pseudo-type, so that the type system can catch this
sort of mistake explicitly.
        regards, tom lane


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