fix hash

databendlabs · Aug 26, 2022 · 950cab3 · 950cab3
1 parent bc541dd
commit 950cab3
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/src/query/catalog/src/table.rs b/src/query/catalog/src/table.rs
@@ -224,7 +224,7 @@ pub enum NavigationPoint {
     TimePoint(DateTime<Utc>),
 }
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Copy, Clone)]
 pub struct TableStatistics {
     pub num_rows: Option<u64>,
     pub data_size: Option<u64>,

diff --git a/src/query/datavalues/src/data_value.rs b/src/query/datavalues/src/data_value.rs
@@ -371,8 +371,9 @@ impl Ord for DataValue {
 #[allow(clippy::derive_hash_xor_eq)]
 impl Hash for DataValue {
     fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        std::mem::discriminant(self).hash(state);
         match self {
-            DataValue::Null => std::mem::discriminant(self).hash(state),
+            DataValue::Null => {}
             DataValue::Boolean(v) => v.hash(state),
             DataValue::UInt64(v) => v.hash(state),
             DataValue::Int64(v) => v.hash(state),