[ORC-638] ORCMapredRecordWriter enlarge columnVector with factors when child array size is not large enough

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.11, 1.6.4, 1.7.0
• Assignee: Lei Sun
• Reporter: Lei Sun
• Created: 04/Jun/20 22:25
• Updated: 15/Sep/20 00:01
• Resolved: 19/Jun/20 22:19

Description

Currently the ensureSize() method is called with the targetSize being current childCount. The downside of it: It could keep triggering resize everytime when new list-as-a-row being added and slow down the write throughput.

Issue Links

• links to: GitHub Pull Request #512