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- Column Level Top K Statistics (HIVE-3421)
- Hive on Spark (HIVE-7292)
- Hive on Spark: Join Design (HIVE-7613)
- Metastore on HBase (HIVE-9452)
- Improve ACID Performance – download docx file (HIVE-14035, HIVE-14199, HIVE-14233)
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- Authorization (Committed but not secure/deployable – see Disclaimer)