[FLINK-4686] Add possibility to get column names

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0
• Component/s: Table SQL / API
• Labels: starter
• Assignee: Jark Wu
• Reporter: Timo Walther
• Created: 26/Sep/16 16:19
• Updated: 05/Jan/17 16:00
• Resolved: 05/Jan/17 16:00

Description

For debugging and maybe for visualization in future (e.g. in a shell) it would be good to have the possibilty to get the names of Table columns. At the moment the user has no idea how the table columns are named; if they need to be matched with POJO fields for example.

My suggestion:

Schema s = table.schema();
TypeInformation<?> type = s.getType(1);
TypeInformation<?> type = s.getType("col");
String s = s.getColumnName(1);
String[] s = s.getColumnNames();

Issue Links

• links to: GitHub Pull Request #2553