čt 18. 3. 2021 v 15:19 odesílatel Hannu Krosing <hannuk@google.com> napsal:
On Thu, Mar 18, 2021 at 5:27 AM Pavel Stehule <pavel.stehule@gmail.com> wrote: > > > There are few main reasons: > > a) compile options are available already - so I don't need invent new syntax - #OPTION DUMP, #PRINT_STRICT ON, #VARIABLE_CONFLICT ERROR
Are these documented anywhere ?
At least a quick search for pl/pgsql + #OPTION DUMP, #PRINT_STRICT ON, #VARIABLE_CONFLICT ERROR returned nothing relevant and also searching in
If pl/pgsql actually supports any of these, these should get documented!
it is documented, please look to following links (but #option dump is undocumented, others are documented)
CREATE FUNCTION get_userid(username text) RETURNS int
AS $$
#print_strict_params on
DECLARE
userid int;
BEGIN SELECT users.userid INTO STRICT userid FROM users WHERE users.username = get_userid.username; RETURN userid;
END;
$$ LANGUAGE plpgsql;
For me the most logical place for declaring a function name alias would be to allow ALIAS FOR the function name in DECLARE section.
plpgsql_test=# CREATE FUNCTION a_function_with_an_inconveniently_long_name(i int , OUT o int) LANGUAGE plpgsql AS $plpgsql$ DECLARE fnarg ALIAS FOR a_function_with_an_inconveniently_long_name; BEGIN fnarg.o = 2 * fnarg.i; END; $plpgsql$;
but unfortunately this currently returns
ERROR: 42704: variable "a_function_with_an_inconveniently_long_name" does not exist LINE 4: fnarg ALIAS FOR a_function_with_an_inconveniently_long_na... ^ LOCATION: plpgsql_yyparse, pl_gram.y:677
Variation could be
DECLARE fnarg ALIAS FOR FUNCTION a_function_with_an_inconveniently_long_name;
so it is clear that we are aliasing current function name
or even make the function name optional, as there can only be one, so
DECLARE fnarg ALIAS FOR FUNCTION;
Why you think so it is better than just
#routine_label fnarg
?
Maybe the name of the option can be routine_alias? Is it better for you?
My objection to DECLARE is freedom of this clause. It can be used everywhere. the effect of DECLARE is block limited. So theoretically somebody can write
