fix cluster statis null bug
@@ -327,11 +327,11 @@ impl Ord for DataValue {
}
if self.is_null() {
- return Ordering::Less;
+ return Ordering::Greater;
}
if other.is_null() {
- return Ordering::Greater;
+ return Ordering::Less;
}
if !self.is_numeric() || !other.is_numeric() {
