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Posted to user@spark.apache.org by Tomasz Bartczak <to...@allegrogroup.com> on 2016/07/28 12:05:10 UTC

reasons for introducing SPARK-9415 - disable group by on MapType

Hello,

what were the reasons for disabling group-by and join on column of MapType?
It was done intentionally in
https://issues.apache.org/jira/browse/SPARK-9415

I understand that it would not be feasible to do order by MapType, but -
group by requires only equality check, which is possible for map of
primitive types.

Thanks



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