[SPARK-13742] Add non-iterator interface to RandomSampler

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: Spark Core
• Assignee: L. C. Hsieh
• Reporter: L. C. Hsieh
• Created: 08/Mar/16 14:01
• Updated: 30/Mar/16 14:09
• Resolved: 28/Mar/16 16:59

Description

RandomSampler.sample currently accepts iterator as input and output another iterator. This makes it inappropriate to use in wholestage codegen of Sampler operator. We should add non-iterator interface to RandomSampler.

Issue Links

• links to: [Github] Pull Request #11578 (viirya)