pub fn right(s: &str, n: i32, writer: &mut impl Write)Expand description
Returns the last n characters in the string. If n is a negative value, the function will return all but first |n| characters.
ยงExample
query T
select right('RisingWave', 4)
----
Wave
query T
select left('RisingWave', 42)
----
RisingWave
query T
select right('RisingWave', 0)
----
(empty)
query T
select right('RisingWave', -6)
----
Wave
# PostgreSQL returns the whole string due to an overflow bug, which we do not follow.
query T
select right('RisingWave', -2147483648);
----
(empty)