Github user xuanyuanking commented on a diff in the pull request:
https://github.com/apache/spark/pull/22467#discussion_r218835749
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/ParquetPartitioningTest.scala
---
@@ -0,0 +1,253 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.hive
+
+import java.io.File
+
+import org.apache.spark.sql._
+import org.apache.spark.sql.hive.test.TestHiveSingleton
+import org.apache.spark.sql.test.SQLTestUtils
+import org.apache.spark.util.Utils
+
+// The data where the partitioning key exists only in the directory
structure.
+case class ParquetData(intField: Int, stringField: String)
+// The data that also includes the partitioning key
+case class ParquetDataWithKey(p: Int, intField: Int, stringField: String)
+
+case class StructContainer(intStructField: Int, stringStructField: String)
+
+case class ParquetDataWithComplexTypes(
+ intField: Int,
+ stringField: String,
+ structField: StructContainer,
+ arrayField: Seq[Int])
+
+case class ParquetDataWithKeyAndComplexTypes(
+ p: Int,
+ intField: Int,
+ stringField: String,
+ structField: StructContainer,
+ arrayField: Seq[Int])
+
+/**
+ * A collection of tests for parquet data with various forms of
partitioning.
+ */
+abstract class ParquetPartitioningTest extends QueryTest with SQLTestUtils
with TestHiveSingleton {
+ import testImplicits._
+
+ var partitionedTableDir: File = null
+ var normalTableDir: File = null
+ var partitionedTableDirWithKey: File = null
+ var partitionedTableDirWithComplexTypes: File = null
+ var partitionedTableDirWithKeyAndComplexTypes: File = null
+
+ override def beforeAll(): Unit = {
+ super.beforeAll()
+ partitionedTableDir = Utils.createTempDir()
+ normalTableDir = Utils.createTempDir()
+
+ (1 to 10).foreach { p =>
+ val partDir = new File(partitionedTableDir, s"p=$p")
+ sparkContext.makeRDD(1 to 10)
+ .map(i => ParquetData(i, s"part-$p"))
+ .toDF()
+ .write.parquet(partDir.getCanonicalPath)
+ }
+
+ sparkContext
+ .makeRDD(1 to 10)
+ .map(i => ParquetData(i, s"part-1"))
+ .toDF()
+ .write.parquet(new File(normalTableDir, "normal").getCanonicalPath)
+
+ partitionedTableDirWithKey = Utils.createTempDir()
+
+ (1 to 10).foreach { p =>
+ val partDir = new File(partitionedTableDirWithKey, s"p=$p")
+ sparkContext.makeRDD(1 to 10)
+ .map(i => ParquetDataWithKey(p, i, s"part-$p"))
+ .toDF()
+ .write.parquet(partDir.getCanonicalPath)
+ }
+
+ partitionedTableDirWithKeyAndComplexTypes = Utils.createTempDir()
+
+ (1 to 10).foreach { p =>
+ val partDir = new File(partitionedTableDirWithKeyAndComplexTypes,
s"p=$p")
+ sparkContext.makeRDD(1 to 10).map { i =>
+ ParquetDataWithKeyAndComplexTypes(
+ p, i, s"part-$p", StructContainer(i, f"${i}_string"), 1 to i)
+ }.toDF().write.parquet(partDir.getCanonicalPath)
+ }
+
+ partitionedTableDirWithComplexTypes = Utils.createTempDir()
+
+ (1 to 10).foreach { p =>
+ val partDir = new File(partitionedTableDirWithComplexTypes, s"p=$p")
+ sparkContext.makeRDD(1 to 10).map { i =>
+ ParquetDataWithComplexTypes(i, s"part-$p", StructContainer(i,
f"${i}_string"), 1 to i)
+ }.toDF().write.parquet(partDir.getCanonicalPath)
+ }
+ }
+
+ override protected def afterAll(): Unit = {
+ try {
+ partitionedTableDir.delete()
+ normalTableDir.delete()
+ partitionedTableDirWithKey.delete()
+ partitionedTableDirWithComplexTypes.delete()
+ partitionedTableDirWithKeyAndComplexTypes.delete()
+ } finally {
+ super.afterAll()
+ }
+ }
+
+ /**
+ * Drop named tables if they exist
+ *
--- End diff --
nit for the indent.
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