[SPARK-8801] Support TypeCollection in ExpectsInputTypes

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.5.0
• Component/s: SQL
• Target Version/s: 1.5.0
• Assignee: Reynold Xin
• Reporter: Reynold Xin
• Created: 02/Jul/15 21:17
• Updated: 09/Jul/15 06:48
• Resolved: 03/Jul/15 04:45

Description

Some functions support more than one input types for each parameter. For example, length supports binary and string, and maybe array/struct in the future.

This ticket proposes a TypeCollection AbstractDataType that supports multiple data types.

Issue Links

• links to: [Github] Pull Request #7202 (rxin)