ZhangHuiGui commented on code in PR #40687:
URL: https://github.com/apache/arrow/pull/40687#discussion_r1533482958
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cpp/src/arrow/compute/exec.h:
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@@ -257,6 +257,10 @@ struct ARROW_EXPORT ExecBatch {
return result;
}
+ /// \brief A check for the empty ExecBatch with no output length
+ /// and function's arguments.
+ bool IsNull() const { return length == 0 && num_values() == 0; }
Review Comment:
Agree, seems `num_values() == 0` is enough.
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