ianmcook commented on code in PR #12460:
URL: https://github.com/apache/arrow/pull/12460#discussion_r845643144
##########
docs/source/python/api/compute.rst:
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@@ -45,6 +45,21 @@ Aggregations
tdigest
variance
+Cumulative Functions
+--------------------
+
+Cumulative functions are vector functions that perform a running total on its
+input and outputs an array containing the corresponding intermediate running
values.
Review Comment:
I am worried that users are going to misunderstand what this function does.
Is there some way we can clarify that it does _not_ iterate down a column
accumulating the values in the rows of the column? I think my earlier comment
about this was misunderstood.
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