jorisvandenbossche commented on a change in pull request #10410:
URL: https://github.com/apache/arrow/pull/10410#discussion_r643732150
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File path: cpp/src/arrow/compute/api_scalar.h
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@@ -462,5 +462,21 @@ ARROW_EXPORT
Result<Datum> FillNull(const Datum& values, const Datum& fill_value,
ExecContext* ctx = NULLPTR);
+/// \brief IfElse returns elements chosen from `left` or `right`
+/// depending on `cond`. `null` values would be promoted to the result
Review comment:
```suggestion
/// depending on `cond`. `null` values in `cond` will be promoted to the
result
```
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