Re: Isolation and Concurrency in PG functions?

Roberto Mello <rmello(at)cc(dot)usu(dot)edu> writes:
> I am porting some VERY big functions to PG for a data warehousing system
> (that is GPL'd BTW) and it seems that the results of one portion of the
> function (e.g. a create table or a series of inserts) are invisible to
> the other parts which obviously causes the function (and following
> functions) to fail and is completely driving me nuts because I see the
> results when I do the queries interactively.

?? How are you defining these functions, exactly? In SQL or PLPGSQL
functions, successive queries certainly do see each others' results,
for example

regression=# create table foot (f1 int);
CREATE
regression=# create function foo(int) returns int as
regression-# 'insert into foot values($1);
regression'# select count(*) from foot' language 'sql';
CREATE
regression=# select foo(1);
foo
-----
1
(1 row)

regression=# select foo(1);
foo
-----
2
(1 row)

If you are coding at the C level you may need to call
CommandCounterIncrement() between queries.

regards, tom lane