viirya commented on a change in pull request #28988:
URL: https://github.com/apache/spark/pull/28988#discussion_r449903186
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File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/SchemaPruningSuite.scala
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@@ -497,6 +497,26 @@ abstract class SchemaPruningSuite
Row(Row("Janet", null, "Jones"), "Jones") ::Nil)
}
+ testSchemaPruning("SPARK-32163: nested pruning should work even with
cosmetic variations") {
+ withTempView("contact_alias") {
+ sql("select * from contacts")
+ .repartition(100, col("name.first"), col("name.last"))
+ .selectExpr("name").createOrReplaceTempView("contact_alias")
+
+ val query1 = sql("select name.first from contact_alias")
+ checkScan(query1, "struct<name:struct<first:string,last:string>>")
+ checkAnswer(query1, Row("Jane") :: Row("John") :: Row("Jim") ::
Row("Janet") ::Nil)
+
+ sql("select * from contacts")
+ .select(explode(col("friends.first")), col("friends"))
+ .createOrReplaceTempView("contact_alias")
+
+ val query2 = sql("select friends.middle, col from contact_alias")
+ checkScan(query2,
"struct<friends:array<struct<first:string,middle:string>>>")
+ checkAnswer(query2, Row(Array("Z."), "Susan") :: Nil)
Review comment:
@maropu This test is for branch-3.0.
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