LightDB-A 兼容oracle支持mod操作符
LightDB-A 为了兼容oracle,从23.3版本开始支持mod操作符,其语义同 ‘%’ 操作符,使用案例如下:
select 5 mod 2;
?column?
----------
1
(1 row)
select 0 % 0;
ERROR: division by zero
select 5 % 0;
ERROR: division by zero
select -1 % 0;
ERROR: division by zero
select -1 % 2;
?column?
----------
-1
(1 row)
select -1 % 3;
?column?
----------
-1
(1 row)
select -2 % 3;
?column?
----------
-2
(1 row)
do $$
DECLARE
id int;
begin
id := 7 mod 4;
RAISE NOTICE 'id = %', id;
end;
$$;
NOTICE: id = 3
DO