use pgrx::prelude::*;

#[pg_extern]
pub fn str_substr(input: &str, start: i32, end: i32) -> &str {
    &input[start as usize..end as usize]
}

#[cfg(any(test, feature = "pg_test"))]
mod tests {
    #[allow(unused_imports)]
    use super::*;
    use pgrx::prelude::*;
}