sunjincheng created FLINK-6941:
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Summary: Selecting window start / end on over window causes field
not resolve exception
Key: FLINK-6941
URL: https://issues.apache.org/jira/browse/FLINK-6941
Project: Flink
Issue Type: Bug
Components: Table API & SQL
Affects Versions: 1.4.0
Reporter: sunjincheng
Assignee: sunjincheng
Selecting window start / end on over window causes field not resolve exception.
The following program:
{code}
table
.window(
Over partitionBy 'c orderBy 'proctime preceding UNBOUNDED_ROW as 'w)
.select('c, countFun('b) over 'w, 'w.start, 'w.end)
{code}
causes
{code}
org.apache.flink.table.api.ValidationException: Cannot resolve [w] given input
[a, b, c, proctime].
at
org.apache.flink.table.plan.logical.LogicalNode.failValidation(LogicalNode.scala:143)
at
org.apache.flink.table.plan.logical.LogicalNode$$anonfun$validate$1.applyOrElse(LogicalNode.scala:86)
at
org.apache.flink.table.plan.logical.LogicalNode$$anonfun$validate$1.applyOrElse(LogicalNode.scala:83)
at
org.apache.flink.table.plan.TreeNode.postOrderTransform(TreeNode.scala:72)
at
org.apache.flink.table.plan.TreeNode$$anonfun$1.apply(TreeNode.scala:46)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at
scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48)
{code}
We should validate that the start and end window properties are not accessed on
over windows.
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