mustafasrepo commented on code in PR #9303:
URL: https://github.com/apache/arrow-datafusion/pull/9303#discussion_r1498744668
##########
datafusion/physical-plan/src/limit.rs:
##########
@@ -512,21 +511,8 @@ impl LimitStream {
self.fetch = 0;
self.input = None; // clear input so it can be dropped early
- let limited_columns: Vec<ArrayRef> = batch
- .columns()
- .iter()
- .map(|col| col.slice(0, col.len().min(batch_rows)))
- .collect();
- let options =
-
RecordBatchOptions::new().with_row_count(Option::from(batch_rows));
- Some(
- RecordBatch::try_new_with_options(
- batch.schema(),
- limited_columns,
- &options,
- )
- .unwrap(),
- )
+ // It is guaranteed that batch_rows is <= batch.num_rows
+ Some(batch.slice(0, batch_rows))
Review Comment:
did so
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