pitrou commented on a change in pull request #11164:
URL: https://github.com/apache/arrow/pull/11164#discussion_r709898918
##########
File path: python/pyarrow/compute.py
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@@ -643,3 +643,85 @@ def fill_null(values, fill_value):
fill_value = pa.scalar(fill_value.as_py(), type=values.type)
return call_function("coalesce", [values, fill_value])
+
+
+def top_k_unstable(values, k, sort_keys=[], memory_pool=None):
+ """
+ Select the indices of the top-k ordered elements from array- or table-like
+ data.
+
+ This is a specalizacion for :func:`select_k_unstable`. Output is not
+ guaranteed to be stable.
+
+ Parameters
+ ----------
+ values : Array, ChunkedArray, RecordBatch, or Table
+ k : The number of `k` elements to keep.
+ sort_keys : Column key names to order by when input table-like data.
Review comment:
"when input is"
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