comphead commented on code in PR #10495:
URL: https://github.com/apache/datafusion/pull/10495#discussion_r1600249575
##########
datafusion/physical-plan/src/joins/sort_merge_join.rs:
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@@ -1323,7 +1323,9 @@ impl SMJStream {
// If join filter exists, `self.output_size` is not accurate as we
don't know the exact
// number of rows in the output record batch. If streamed row joined
with buffered rows,
// once join filter is applied, the number of output rows may be more
than 1.
- if record_batch.num_rows() > self.output_size {
+ // If `record_batch` is empty, we should reset `self.output_size` to
0. It could be happened
Review Comment:
👍
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