Sital Kedia commented on SPARK-18134:

[~hvanhovell]- What is the state of this JIRA? Do we expect to make progress on 
this any time soon? This is a very critical feature we are missing in Spark 
which is blocking us from auto-migrating HiveQL to Spark. Please let us know if 
anything we can do to help resolve this issue.


cc - [~sameerag], [~tejasp]

> SQL: MapType in Group BY and Joins not working
> ----------------------------------------------
>                 Key: SPARK-18134
>                 URL: https://issues.apache.org/jira/browse/SPARK-18134
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1, 1.6.2, 2.0.0, 2.0.1, 
> 2.1.0
>            Reporter: Christian Zorneck
>            Priority: Major
> Since version 1.5 and issue SPARK-9415, MapTypes can no longer be used in 
> GROUP BY and join clauses. This makes it incompatible to HiveQL. So, a Hive 
> feature was removed from Spark. This makes Spark incompatible to various 
> HiveQL statements.

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