viirya commented on code in PR #92:
URL:
https://github.com/apache/arrow-datafusion-comet/pull/92#discussion_r1499672962
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spark/src/main/scala/org/apache/spark/sql/comet/operators.scala:
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@@ -81,7 +81,11 @@ abstract class CometExec extends CometPlan {
out.flush()
out.close()
- Iterator((count, cbbos.toChunkedByteBuffer))
+ if (out.size() > 0) {
Review Comment:
Oh, I see. The compressed stream is wrapped in `out`. When it is flushed, it
might write compression related bytes which are not counted in `out.size()`.
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