mapleFU commented on code in PR #37418:
URL: https://github.com/apache/arrow/pull/37418#discussion_r1336526524
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cpp/src/arrow/compute/api_vector.h:
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@@ -586,6 +586,19 @@ Result<Datum> DictionaryEncode(
const DictionaryEncodeOptions& options =
DictionaryEncodeOptions::Defaults(),
ExecContext* ctx = NULLPTR);
+/// \brief Compact a dictionary array
+///
+/// The output removes unused values in dictionary from the input.
+///
+/// \param[in] value array-like input, which should be a dictionary type.
+/// \param[in] ctx the function execution context, optional
+/// \return compacted dictionary array
+///
+/// \since 13.0.0
Review Comment:
Should we change it to since 14.0.0?
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