[ORC-519] Incorrect ORC v1 specification of Decimal encoding

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.7.0
• Component/s: documentation
• Assignee: Norbert Luksa
• Reporter: Brent Kerby
• Created: 22/Jun/19 05:05
• Updated: 21/Sep/21 20:44
• Resolved: 27/Mar/20 22:34

Description

According to the ORC v1 specification (https://orc.apache.org/specification/ORCv1/), the SECONDARY (scale) stream in a Decimal column is encoded using Unsigned Integer RLE v1. However, observing the implementation and behavior of the C++ library, it is evident that the Signed Integer RLE v1 is what is actually used.

Issue Links

• links to: GitHub Pull Request #484