Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/3277#discussion_r100749841
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/BatchTableEnvironment.scala
---
@@ -285,28 +286,37 @@ abstract class BatchTableEnvironment(
* @return The [[DataSet]] that corresponds to the translated [[Table]].
*/
protected def translate[A](table: Table)(implicit tpe:
TypeInformation[A]): DataSet[A] = {
- val dataSetPlan = optimize(table.getRelNode)
- translate(dataSetPlan)
+ val relNode = table.getRelNode
+ val dataSetPlan = optimize(relNode)
+ translate(dataSetPlan, relNode.getRowType)
}
/**
- * Translates a logical [[RelNode]] into a [[DataSet]].
+ * Translates a logical [[RelNode]] into a [[DataSet]]. Converts to
target type if necessary.
*
* @param logicalPlan The root node of the relational expression tree.
* @param tpe The [[TypeInformation]] of the resulting
[[DataSet]].
* @tparam A The type of the resulting [[DataSet]].
* @return The [[DataSet]] that corresponds to the translated [[Table]].
*/
- protected def translate[A](logicalPlan: RelNode)(implicit tpe:
TypeInformation[A]): DataSet[A] = {
+ protected def translate[A](
+ logicalPlan: RelNode,
+ logicalType: RelDataType)
--- End diff --
See my explanation above. Thanks, I will add some comments.
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