HyukjinKwon commented on a change in pull request #25761: [SPARK-29029][SQL] - 
Using AttributeMap in PhysicalOperation.collectProjectsAndFilters
URL: https://github.com/apache/spark/pull/25761#discussion_r347731897
 
 

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 File path: 
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/planning/TestPhysicalOperation.scala
 ##########
 @@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
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+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
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+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
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+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.catalyst.planning
+
+import org.junit.Assert
+
+import org.apache.spark.SparkFunSuite
+import org.apache.spark.sql.catalyst.expressions.{Alias, AttributeReference, 
Expression, ExprId, IsNotNull}
+import org.apache.spark.sql.catalyst.plans.logical.{Filter, LocalRelation, 
LogicalPlan, Project}
+import org.apache.spark.sql.types.{LongType, StringType, TimestampType}
+
+class TestPhysicalOperation extends SparkFunSuite {
+  private val textField = AttributeReference("text1", StringType, nullable = 
false)()
+  private val dateField = AttributeReference("date1", TimestampType)()
+  private val longField = AttributeReference("long1", LongType)()
+  private val longAliasField = Alias(longField, "long1")(exprId = ExprId(100))
+  private val longAliasField2 =
+    Alias(longField, "long1")(exprId = ExprId(100), qualifier = Seq("tmp"))
+  private val testRelation = LocalRelation(textField, dateField, longField)
+
 
 Review comment:
   I think he meant a test case that causes the similar failure to show it is 
indeed a bug within Apache Spark without external stuff.
   
   I think we should remove out such custom barriers - that's not what Apache 
Spark guarantees. Can we find a case where we can't push down certain filters 
to data source?

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