Github user marmbrus commented on a diff in the pull request:
https://github.com/apache/spark/pull/5289#discussion_r27506660
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/HivePlanTest.scala
---
@@ -18,14 +18,18 @@
package org.apache.spark.sql.hive.execution
import org.apache.spark.sql.QueryTest
+import org.apache.spark.sql.catalyst.expressions.AttributeReference
+import org.apache.spark.sql.catalyst.plans.logical.LocalRelation
import org.apache.spark.sql.hive.test.TestHive
class HivePlanTest extends QueryTest {
import TestHive._
+ import TestHive.implicits._
test("udf constant folding") {
- val optimized = sql("SELECT cos(null) FROM
src").queryExecution.optimizedPlan
- val correctAnswer = sql("SELECT cast(null as double) FROM
src").queryExecution.optimizedPlan
+ Seq.empty[Tuple1[Int]].toDF("a").registerTempTable("t")
+ val optimized = sql("SELECT cos(null) FROM
t").queryExecution.optimizedPlan
+ val correctAnswer = sql("SELECT cast(null as double) FROM
t").queryExecution.optimizedPlan
--- End diff --
I'd even be okay adding a special rule to compare plans that always
replaces MetastoreRelations with LocalRelation
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