Re: [BUGS] Stack not being popped correctly (was: Re: [HACKERS] plpgsql lacks generic identifier for record in triggers...)

2004-11-24 Thread Sean Chittenden
Which, doesn't work as expected as it seems as though there's 
something
left behind on the stack that shouldn't be.  Here's the case to
reproduce (doesn't involve pgmemcache):

test=# CREATE FUNCTION t5_func() RETURNS TRIGGER AS 'BEGIN EXECUTE
TRUE; RETURN NULL; END;' LANGUAGE 'plpgsql';
What are you expecting "execute true" to do?
Behave the same as PERFORM?  Ugh, how humiliating.  When writing my 
pgmemcache presentation, I erroneously wrote EXECUTE instead of 
PERFORM.  When sending off that little flurry of emails, I was updating 
my pgmemcache presentation and subconsciously propagated the error w/o 
even thinking about it.  :-/  Thanks, I'll take that pumpkin pie on my 
face.  -sc

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Sean Chittenden
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Re: [BUGS] Stack not being popped correctly (was: Re: [HACKERS] plpgsql lacks generic identifier for record in triggers...)

2004-11-24 Thread Tom Lane
Sean Chittenden <[EMAIL PROTECTED]> writes:
> Which, doesn't work as expected as it seems as though there's something 
> left behind on the stack that shouldn't be.  Here's the case to 
> reproduce (doesn't involve pgmemcache):

> test=# CREATE FUNCTION t5_func() RETURNS TRIGGER AS 'BEGIN EXECUTE 
> TRUE; RETURN NULL; END;' LANGUAGE 'plpgsql';

What are you expecting "execute true" to do?  The argument of EXECUTE
is a string, not a boolean, and it's supposed to be a string that looks
like a SQL command.  The result

> ERROR:  syntax error at or near "t" at character 1
> QUERY:  t
> CONTEXT:  PL/pgSQL function "t5_func" line 1 at execute statement
> LINE 1: t
>  ^

is pretty much what I'd expect considering that plpgsql will do whatever
it takes to coerce the expression result to text.

regards, tom lane

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[BUGS] Stack not being popped correctly (was: Re: [HACKERS] plpgsql lacks generic identifier for record in triggers...)

2004-11-24 Thread Sean Chittenden
[snip]  Err... wait, this is a classic case of send first then 
finishing to pondering the gripe.
And sending a reply to ones self without actually testing my suggestion.
db=# CREATE FUNCTION schma.tbl_inval() RETURNS TRIGGER AS 'BEGIN
EXECUTE public.mc_init();
EXECUTE public.mc_delete(''mc_key'');
RETURN NULL;
END;' LANGUAGE 'plpgsql';
db=# CREATE TRIGGER tbl_inval_trg AFTER INSERT OR UPDATE OR DELETE ON 
schma.tbl FOR EACH STATEMENT EXECUTE PROCEDURE schma.tbl_inval();
Which, doesn't work as expected as it seems as though there's something 
left behind on the stack that shouldn't be.  Here's the case to 
reproduce (doesn't involve pgmemcache):

test=# CREATE TABLE t5 (i int);
Time: 35.294 ms
test=# CREATE FUNCTION t5_func() RETURNS TRIGGER AS 'BEGIN EXECUTE 
TRUE; RETURN NULL; END;' LANGUAGE 'plpgsql';
Time: 101.701 ms
test=# CREATE TRIGGER t5_func_trg AFTER INSERT ON t5 FOR EACH STATEMENT 
EXECUTE PROCEDURE t5_func();
Time: 62.345 ms
test=# INSERT INTO t5 VALUES (1);
ERROR:  syntax error at or near "t" at character 1
QUERY:  t
CONTEXT:  PL/pgSQL function "t5_func" line 1 at execute statement
LINE 1: t
^
Doh!  Can someone with plpgsql foo look into this?  -sc

--
Sean Chittenden
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