Eduardo Ponce created ARROW-15269:
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Summary: [C++][Docs] Clarify that not all compute functions are
invocable via CallFunction
Key: ARROW-15269
URL: https://issues.apache.org/jira/browse/ARROW-15269
Project: Apache Arrow
Issue Type: Improvement
Components: C++, Documentation
Reporter: Eduardo Ponce
Fix For: 8.0.0
It has been noted by users that the [Compute Functions documentation ("Invoking
functions" section) states that functions are invoked via
CallFunction|https://arrow.apache.org/docs/cpp/compute.html#invoking-functions],
but there exist functions (specifically ["Grouped
aggregations"|#grouped-aggregations-group-by]) that can't be invoked directly
via {{CallFunction}}. This is a bit misleading, although this is stated in the
description of "Grouped aggregations".
Grouped aggregations are stateful functions and at the moment stateful
functions are invocable in such a way.
We should clarify in "Invoking functions" section that not all compute
functions are directly invocable via {{CallFunction}}.
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