[CARBONDATA-3625] Make stage files queryable

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Fix Version/s: 2.0.0
• Assignee: Unassigned
• Reporter: Jacky Li
• Created: 19/Dec/19 12:21
• Updated: 30/Dec/19 13:51
• Resolved: 30/Dec/19 13:51

Description

Stage files are data files written by external applications such as flink. These files are committed but not been loaded to the table.
This PR adds a configuration to include them in the query.

Issue Links

• links to: GitHub Pull Request #3519