Github user rxin commented on the pull request:
https://github.com/apache/spark/pull/1136#issuecomment-46634535
Thanks, @willb. There is at least one problem I found. - I think you'd need
to add a cast to the having expression. Otherwise try run the following:
```select key, count(*) c from src group by key having c```
In Hive this returns nothing, but in Spark SQL with this patch it throws a
runtime exception failing to cast integer to boolean.
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