dongjoon-hyun commented on a change in pull request #23542: [WIP]
[SPARK-25603][SQL] Pushing Down Nested Field projections
URL: https://github.com/apache/spark/pull/23542#discussion_r248944103
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetSchemaPruningSuite.scala
##########
@@ -85,10 +90,95 @@ class ParquetSchemaPruningSuite
briefContacts.map { case BriefContact(id, name, address) =>
BriefContactWithDataPartitionColumn(id, name, address, 2) }
+ testSchemaPruning("testing bug") {
+ val data = sql("select * from contacts")
+ import data.sqlContext.implicits._
+
+ val firstAndLastName = udf((first: String, last: String) => first + " " +
last)
+
+ data.show(10)
+
+ val query = data.as[Contact]
+ .map(c => c.copy(id = 2))
+ .select("id", "name", "address", "friends")
+ .select(col("id"), firstAndLastName(col("name.first"), col("name.last")))
+
+ query.explain(true)
+ query.show(true)
+
+ val a =10
Review comment:
Could you remove this line (which is failing the ScalaStyle test)? Then, we
can see UT test result.
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