[Go] Function group by on table

[asfimport]

I'm trying to find some way to group data in Apache Arrow with golang, but I couldn't do it. There's a way to do this or it is only implemented in cpp and python.

Are there plans to implement this on future releases?

Reporter: Francisco Garcia

_{Note: This issue was originally created as ARROW-17264. Please see the migration documentation for further details.}

[asfimport]

George Godik / @ggodik:
can you provide an example of you would like the code to work and the result to look ?

[asfimport]

Francisco Garcia:
this code is in python, I would like to do something similar in golang

>>> import pyarrow as pa
>>> t = pa.table([
...       pa.array(["a", "a", "b", "b", "c"]),
...       pa.array([1, 2, 3, 4, 5]),
... ], names=["keys", "values"])
>>> t.group_by("keys").aggregate([("values", "sum")])
pyarrow.Table
values_sum: int64
keys: string
----
values_sum: [[3,7,5]]
keys: [["a","b","c"]]

[asfimport]

Matthew Topol / @zeroshade:
[~fgarcia.code] currently the library functions to perform grouping similar to the way that the C++ and Python libraries do are not yet implemented in Golang. There are plans to implement this for future releases, but I don't yet have a timeline for it that I can give you.

[asfimport]

Francisco Garcia:
Thank you @zeroshade