Hi!
Thanks for the quotes!
My need is one column per table (primary id and auto_increment) and bigger max value than bigint :-). for now the max value for a sequence
in Postgresql is bigint.
Examples of one possible solution:
-------------------------------------------------------
CREATE TABLE decimal_hold0
(
id bigserial not null primary key,
actual_value numeric(1000,0) not null default 0,
comment text not null
)
------------------------------------------------------
in first time use => Insert into decimal_hold0(comment) Values ('1a_column_for_money_dindin_table_seq');
optional (just for better understanding)
=>Select * from decimal_hold0;
=> result is"1, 0, '1a_column_for_money_dindin_table_seq'"
------------------------------------------------------
create or replace function next_value(miid bigint) returns decimal(1000, 0)
AS
$$
Update decimal_hold0 Set actual_value = actual_value + 1 where id = miid Returning actual_value;
$$ LANGUAGE SQL;
-------------------------------------------------------
create table money_dindin (
id decimal(1000, 0) not null primary key default next_value(1),
eba text
)
the real thing is showing in
money_dindin.id :-)
insert into money_dindin (eba) Values ('eba1'), ('eba2'), ('eba3'), ('eba4'), ('eba5'), ('eba6')
testes=# select * from money_dindin ;
id | eba
----+------
1 | eba1
2 | eba2
3 | eba3
4 | eba4
5 | eba5
6 | eba6
(6 registros)
:-)
My renew question(s) is
1) how make function next_value thread safe and transaction safe (or is this already safe? )
2) how simulate a sequence with type Decimal(x, 0)
3) and se possible, get ride the decimal_hold0 table :-)
Any Ideia is Wellcome :-)
Really Many Thanks in Advance!!! :-)