2011/7/5 Robert Haas <robertmh...@gmail.com>: > On Wed, Jun 15, 2011 at 7:43 AM, Pavel Stehule <pavel.steh...@gmail.com> > wrote: >> Hello Heikki, >> >> probably I found a bug in patch: >> >> CREATE FUNCTION fx(i integer) RETURNS integer >> LANGUAGE plpgsql >> AS $$begin raise notice '>>%<<', i; return i; end;$$; >> >> CREATE FUNCTION fx1(integer) RETURNS text >> LANGUAGE sql >> AS $_$ select case $1 when 1 then 'A' else 'B' end$_$; >> >> CREATE FUNCTION fx2(text) RETURNS text >> LANGUAGE sql >> AS $_$ select case $1 when 'A' then 'a' else 'b' end$_$; >> >> CREATE TABLE foo ( >> a integer >> ); >> >> COPY foo (a) FROM stdin; >> 1 >> 0 >> \. >> >> postgres=# select fx2(fx1(fx(a))) from foo; >> NOTICE: >>1<< >> ERROR: invalid expression parameter reference (1 levels up, while >> stack is only 1 elements deep) > > I can't reproduce this. Perhaps it was fixed by one of the later commits? >
I don't checked it again, because Tom rejected Heikki's design. Regards Pavel > -- > Robert Haas > EnterpriseDB: http://www.enterprisedb.com > The Enterprise PostgreSQL Company > -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
