[SPARK-5752] Don't implicitly convert RDDs directly to DataFrames

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0
• Component/s: SQL
• Target Version/s: 1.3.0
• Assignee: Reynold Xin
• Reporter: Reynold Xin
• Created: 12/Feb/15 02:17
• Updated: 14/Feb/15 07:03
• Resolved: 14/Feb/15 07:03

Description

DataFrame is a rich API consisting of too many functions. It would be safer to convert RDDs to a DataFrameHolder that consists of only two functions:

- toDataFrame()
- toDataFrame(String*)

This way, it is highly unlikely to have ambiguous implicit conversions, at the cost of requiring users to always call toDataFrame before being able to use DataFrame functions.

Issue Links

• links to: [Github] Pull Request #4556 (rxin)