Major Description
DROP TABLE IF EXISTS p1 ;
DROP TABLE IF EXISTS p2 ;
DROP TABLE IF EXISTS p3 ;
CREATE TABLE p1 (col STRING) ;
CREATE TABLE p2 (col STRING) ;
CREATE TABLE p3 (col STRING) ;
set spark.sql.crossJoin.enabled = true;
SELECT
1 as cste,
col
FROM (
SELECT
col as col
FROM (
SELECT
p1.col as col
FROM p1
LEFT JOIN p2
UNION ALL
SELECT
col
FROM p3
) T1
) T2
;
it will throw exception:
key not found: col#16
java.util.NoSuchElementException: key not found: col#16
at scala.collection.MapLike$class.default(MapLike.scala:228)
at org.apache.spark.sql.catalyst.expressions.AttributeMap.default(AttributeMap.scala:31)
at scala.collection.MapLike$class.apply(MapLike.scala:141)
at org.apache.spark.sql.catalyst.expressions.AttributeMap.apply(AttributeMap.scala:31)
at org.apache.spark.sql.catalyst.optimizer.PushProjectionThroughUnion$$anonfun$2.applyOrElse(Optimizer.scala:346)
at org.apache.spark.sql.catalyst.optimizer.PushProjectionThroughUnion$$anonfun$2.applyOrElse(Optimizer.scala:345)
at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:292)
at org.apache.spark.sql.catalyst.trees.TreeNode$$anonfun$3.apply(TreeNode.scala:292)
at org.apache.spark.sql.catalyst.trees.CurrentOrigin$.withOrigin(TreeNode.scala:74)
at org.apache.spark.sql.catalyst.trees.TreeNode.transformDown(TreeNode.scala:291)
at org.apache.spark.sql.catalyst.trees.TreeNode.transform(TreeNode.scala:281)
at org.apache.spark.sql.catalyst.optimizer.PushProjectionThroughUnion$.org$apache$spark$sql$catalyst$optimizer$PushProjectionThroughUnion$$pushToRight(Optimizer.scala:345)
at org.apache.spark.sql.catalyst.optimizer.PushProjectionThroughUnion$$anonfun$apply$4$$anonfun$8$$anonfun$apply$31.apply(Optimizer.scala:378)
at org.apache.spark.sql.catalyst.optimizer.PushProjectionThroughUnion$$anonfun$apply$4$$anonfun$8$$anonfun$apply$31.apply(Optimizer.scala:378)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.immutable.List.foreach(List.scala:381)
at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
at scala.collection.immutable.List.map(List.scala:285)
at org.apache.spark.sql.catalyst.optimizer.PushProjectionThroughUnion$$anonfun$apply$4$$anonfun$8.apply(Optimizer.scala:378)
at org.apache.spark.sql.catalyst.optimizer.PushProjectionThroughUnion$$anonfun$apply$4$$anonfun$8.apply(Optimizer.scala:376)
