jorisvandenbossche commented on code in PR #34137:
URL: https://github.com/apache/arrow/pull/34137#discussion_r1113934248
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cpp/src/arrow/compute/exec/exec_plan.h:
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@@ -156,7 +156,10 @@ class ARROW_EXPORT ExecNode {
///
/// In other words, given the ordering {{"x", SortOrder::Ascending}} we
/// know that all values of x in a batch with index N will be less than
- /// or equal to all values of x in a batch with index N+k (assuming k > 0)
+ /// or equal to all values of x in a batch with index N+k (assuming k > 0).
+ /// Furthermore, we also know that values will be sorted within a batch.
+ /// Any row N will have a value of x that is less than the value for
Review Comment:
```suggestion
/// Any row N will have a value of x that is less than or equal to the
value for
```
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