[jira] [Resolved] (FLINK-4686) Add possibility to get column names

["Timo Walther (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timo Walther resolved FLINK-4686.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 1.3.0

Fixed in 1.3.0: 6ac579455115d1062cade8a0453417c9a6ae6a83

> Add possibility to get column names
> -----------------------------------
>
>                 Key: FLINK-4686
>                 URL: https://issues.apache.org/jira/browse/FLINK-4686
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API & SQL
>            Reporter: Timo Walther
>            Assignee: Jark Wu
>              Labels: starter
>             Fix For: 1.3.0
>
>
> 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:
> {code}
> Schema s = table.schema();
> TypeInformation<?> type = s.getType(1);
> TypeInformation<?> type = s.getType("col");
> String s = s.getColumnName(1);
> String[] s = s.getColumnNames();
> {code}



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