Github user xuanyuanking commented on a diff in the pull request:
https://github.com/apache/spark/pull/14957#discussion_r77760264
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetQuerySuite.scala
---
@@ -571,6 +571,44 @@ class ParquetQuerySuite extends QueryTest with
ParquetTest with SharedSQLContext
}
}
+ test("SPARK-4502 parquet nested fields pruning") {
+ // Schema of "test-data/nested-array-struct.parquet":
+ // root
+ // |-- primitive: integer (nullable = true)
+ // |-- myComplex: array (nullable = true)
+ // | |-- element: struct (containsNull = true)
+ // | | |-- id: integer (nullable = true)
+ // | | |-- repeatedMessage: array (nullable = true)
+ // | | | |-- element: struct (containsNull = true)
+ // | | | | |-- someId: integer (nullable = true)
+ val df =
readResourceParquetFile("test-data/nested-array-struct.parquet")
--- End diff --
https://github.com/apache/spark/blob/master/sql/core/src/test/resources/test-data/nested-array-struct.parquet
I reuse this file to test nested struct in paruqet, this file in
sql/core/src/test/resources/test-data/
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