Re: are there static variables in pgsql?

Kenneth Downs wrote:

OK, cancel the question, the answer is

SELECT current_setting('global.val2');

> This is very intriguing, but I'd like to make sure it is doing what I
> think it is doing.  Is it tracking variables in a connection across
> SQL commands?  If so, shouldn't this work (Assume the existence of
> table "detail" with a column called "val2").
>
> create or replace function SetVal2() returns void as
> $$
> begin
>    update detail set val2=global.val2;
> end;
> $$
> language plpgsql
>
> set global.val2=5;
> select SetVal2();
>
> I'm getting the following error which I don't understand.  Seems I
> don't know how to access the variable once it is set.
>
> ERROR:  missing FROM-clause entry for table "global"
> CONTEXT:  SQL statement "update detail set val2=global.val2"
> PL/pgSQL function "setval2" line 2 at SQL statement
>
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