Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/1958#discussion_r62684793
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/table.scala
---
@@ -472,61 +339,39 @@ class Table(
tableEnv.emitToSink(this, configuredSink)
}
- private def createRenamingProject(exprs: Seq[RexNode]): LogicalProject =
{
-
- val names = exprs.map{ e =>
- e.getKind match {
- case SqlKind.AS =>
- e.asInstanceOf[RexCall].getOperands.get(1)
- .asInstanceOf[RexLiteral].getValue
- .asInstanceOf[NlsString].getValue
- case SqlKind.INPUT_REF =>
-
relNode.getRowType.getFieldNames.get(e.asInstanceOf[RexInputRef].getIndex)
- case _ =>
- throw new PlanGenException("Unexpected expression type
encountered.")
- }
-
- }
- LogicalProject.create(relNode, exprs.toList.asJava,
names.toList.asJava)
- }
-
private def checkUniqueNames(exprs: Seq[Expression]): Unit = {
--- End diff --
Can we move this check into `Project`?
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