[SPARK-14334] Add toLocalIterator for Dataset

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: SQL
• Assignee: Davies Liu
• Reporter: Davies Liu
• Created: 01/Apr/16 20:30
• Updated: 13/Dec/16 01:25
• Resolved: 04/Apr/16 20:31

Description

The toLocalIterator of RDD is super slow, we should have a optimized implementation for Dataset/DataFrame.

Issue Links

• is related to: SPARK-18281 toLocalIterator yields time out error on pyspark2
• links to: [Github] Pull Request #12114 (davies)