[HIVE-5994] ORC RLEv2 encodes wrongly for large negative BIGINTs (64 bits )

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0
• Fix Version/s: 0.13.0
• Labels: orcfile
• Assignee: Prasanth Jayachandran
• Reporter: Prasanth Jayachandran
• Created: 10/Dec/13 02:08
• Updated: 20/Feb/14 11:51
• Resolved: 12/Dec/13 22:31

Description

For large negative BIGINTs, zigzag encoding will yield large value (64bit value) with MSB set to 1. This value is interpreted as negative value in SerializationUtils.findClosestNumBits(long value) function. This resulted in wrong computation of total number of bits required which results in wrong encoding/decoding of values.

Issue Links

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