Function duckdb_is_finite_date 

pub unsafe extern "C" fn duckdb_is_finite_date(
    date: duckdb_date,
) -> bool

Test a duckdb_date to see if it is a finite value.

@param date The date object, as obtained from a DUCKDB_TYPE_DATE column. @return True if the date is finite, false if it is ±infinity.