[ORC-757] Add Hashtable implementation for dictionary

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 1.7.0
• Component/s: Java
• Labels: releasenotes
• Assignee: Lei Sun
• Reporter: Lei Sun
• Created: 09/Mar/21 23:22
• Updated: 21/Sep/21 20:45
• Resolved: 04/Jun/21 11:19

Description

As part of ORC-50, adding a new implementation for dictionary used for string-encoding

Issue Links

• causes: ORC-985 ORC branch 1.7 is producing larger files from java writer
• causes: ORC-810 FIX expected Output Stats when using Hash Dictionary
• is related to: ORC-50 Replace the red/black tree representation for the string dictionaries with hash tables
• links to: GitHub Pull Request #651