Github user liancheng commented on the pull request:
https://github.com/apache/spark/pull/7421#issuecomment-122528059
It seems that Hive prefers to access the underlying metastore database via
direct SQL, and uses JDO ORM as a fallback. The existing bug doesn't show up
because usually either direct SQL or JDO ORM is capable to do the work. But in
case of `getPartitionByFilter`, the ORM one doesn't support predicates
involving integral types by default, and thus leads to build failure.
Before fixing the root cause, I guess we can workaround this issue by
setting `hive.metastore.integral.jdo.pushdown` to `true` to let the JDO ORM
code path be able to handle integral partition columns.
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