ueshin commented on PR #45142:
URL: https://github.com/apache/spark/pull/45142#issuecomment-1970085184

   With the UDTF given in the description:
   
   ```py
   >>> spark.sql("SELECT * FROM Identity(TABLE(select 'x' as a, 1 as 
b))").show()
   +---+----+
   |  a|   b|
   +---+----+
   |  x|1001|
   +---+----+
   ```
   
   whereas:
   
   ```py
   >>> spark.sql("SELECT * FROM Identity(TABLE(select 'x' as a, 1 as b)) WHERE 
a = 'x'").show()
   Traceback (most recent call last):
   ...
   py4j.protocol.Py4JJavaError: An error occurred while calling o96.showString.
   : java.lang.IndexOutOfBoundsException: 0
        at scala.collection.LinearSeqOps.apply(LinearSeq.scala:131)
        at scala.collection.LinearSeqOps.apply$(LinearSeq.scala:128)
        at scala.collection.immutable.List.apply(List.scala:79)
        at 
org.apache.spark.sql.catalyst.plans.logical.BaseEvalPythonUDTF.$anonfun$forwardedColumnMap$2(pythonLogicalOperators.scala:245)
        at scala.collection.immutable.List.foreach(List.scala:333)
        at 
org.apache.spark.sql.catalyst.plans.logical.BaseEvalPythonUDTF.$anonfun$forwardedColumnMap$1(pythonLogicalOperators.scala:234)
        at 
org.apache.spark.sql.catalyst.plans.logical.BaseEvalPythonUDTF.$anonfun$forwardedColumnMap$1$adapted(pythonLogicalOperators.scala:229)
        at scala.Option.foreach(Option.scala:437)
        at 
org.apache.spark.sql.catalyst.plans.logical.BaseEvalPythonUDTF.forwardedColumnMap(pythonLogicalOperators.scala:229)
        at 
org.apache.spark.sql.catalyst.plans.logical.BaseEvalPythonUDTF.forwardedColumnMap$(pythonLogicalOperators.scala:227)
        at 
org.apache.spark.sql.catalyst.plans.logical.BatchEvalPythonUDTF.forwardedColumnMap$lzycompute(pythonLogicalOperators.scala:300)
        at 
org.apache.spark.sql.catalyst.plans.logical.BatchEvalPythonUDTF.forwardedColumnMap(pythonLogicalOperators.scala:300)
        at 
org.apache.spark.sql.catalyst.optimizer.PushPredicateThroughNonJoin$$anonfun$6.$anonfun$applyOrElse$49(Optimizer.scala:1825)
        at 
org.apache.spark.sql.catalyst.optimizer.PushPredicateThroughNonJoin$$anonfun$6.$anonfun$applyOrElse$49$adapted(Optimizer.scala:1823)
        at 
scala.collection.StrictOptimizedIterableOps.$anonfun$partition$1(StrictOptimizedIterableOps.scala:34)
        at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:576)
        at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:574)
        at scala.collection.AbstractIterator.foreach(Iterator.scala:1300)
        at scala.collection.immutable.List.partition(List.scala:588)
        at 
org.apache.spark.sql.catalyst.optimizer.PushPredicateThroughNonJoin$$anonfun$6.applyOrElse(Optimizer.scala:1823)
        at 
org.apache.spark.sql.catalyst.optimizer.PushPredicateThroughNonJoin$$anonfun$6.applyOrElse(Optimizer.scala:1715)
   ...
   ```


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