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https://issues.apache.org/jira/browse/FLINK-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15529861#comment-15529861
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ASF GitHub Bot commented on FLINK-4686:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/2553#discussion_r80931954
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/table.scala
---
@@ -66,6 +66,17 @@ class Table(
def getRelNode: RelNode = logicalPlan.toRelNode(relBuilder)
/**
+ * Returns the schema of this Table
+ */
+ def schema: Schema = new Schema(logicalPlan.output.map(_.name).toArray,
--- End diff --
I would call this `getSchema` to be consistent.
> 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
>
> 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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