[HIVE-4245] Implement numeric dictionaries in ORC

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: File Formats
• Assignee: Pamela Vagata
• Reporter: Owen O'Malley
• Created: 28/Mar/13 15:41
• Updated: 14/Aug/13 21:37

Description

For many applications, especially in de-normalized data, there is a lot of redundancy in the numeric columns. Therefore, it would make sense to adaptively use dictionary encodings for numeric columns in addition to string columns.