fix clippy.

Author: Rachelint

datafusion/physical-plan/src/aggregates/row_hash.rs

@@ -890,7 +890,7 @@ impl GroupedHashAggregateStream {
         let batches = outputs
             .into_iter()
             .map(|o| {
-                RecordBatch::try_new(schema.clone(), o)
+                RecordBatch::try_new(Arc::clone(&schema), o)
                     .map_err(|e| DataFusionError::ArrowError(e, None))
             })
             .collect::<Result<VecDeque<_>>>()?;
@@ -1189,7 +1189,7 @@ impl MergeMode {
 
     fn merge_groups_and_partial_states(
         &self,
-        outputs: &mut Vec<Vec<ArrayRef>>,
+        outputs: &mut [Vec<ArrayRef>],
         mut partial_states: Vec<Vec<ArrayRef>>,
     ) {
         match &self {
@@ -1205,7 +1205,7 @@ impl MergeMode {
 
     fn merge_groups_and_final_states(
         &self,
-        outputs: &mut Vec<Vec<ArrayRef>>,
+        outputs: &mut [Vec<ArrayRef>],
         mut final_states: Vec<ArrayRef>,
     ) {
         match &self {