add more logging to partition pruning
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Key: HIVE-1849
URL: https://issues.apache.org/jira/browse/HIVE-1849
Project: Hive
Issue Type: Bug
Components: Query Processor
Reporter: Namit Jain
Assignee: Namit Jain
In facebook, we are seeing some intermittent errors, where it seems that either
all the partitions are not returned by the metastore
or some of them are pruned wrongly.
This patch adds more logging for debugging such scenarios.
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