Github user janewangfb commented on a diff in the pull request:
https://github.com/apache/spark/pull/18975#discussion_r136685529
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/InsertIntoHiveDirCommand.scala
---
@@ -0,0 +1,134 @@
+/*
+ * 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.execution
+
+import java.util.Properties
+
+import scala.language.existentials
+
+import org.apache.hadoop.fs.{FileSystem, Path}
+import org.apache.hadoop.hive.common.FileUtils
+import org.apache.hadoop.hive.ql.plan.TableDesc
+import org.apache.hadoop.hive.serde.serdeConstants
+import org.apache.hadoop.hive.serde2.`lazy`.LazySimpleSerDe
+import org.apache.hadoop.mapred._
+
+import org.apache.spark.sql.{Row, SparkSession}
+import org.apache.spark.sql.catalyst.catalog.CatalogStorageFormat
+import org.apache.spark.sql.catalyst.plans.logical.LogicalPlan
+import org.apache.spark.sql.execution.SparkPlan
+import org.apache.spark.util.Utils
+
+/**
+ * Command for writing the results of `query` to file system.
+ *
+ * The syntax of using this command in SQL is:
+ * {{{
+ * INSERT OVERWRITE [LOCAL] DIRECTORY
+ * path
+ * [ROW FORMAT row_format]
+ * [STORED AS file_format]
+ * SELECT ...
+ * }}}
+ *
+ * @param isLocal whether the path specified in `storage` is a local
directory
+ * @param storage storage format used to describe how the query result is
stored.
+ * @param query the logical plan representing data to write to
+ * @param overwrite whthere overwrites existing directory
+ */
+case class InsertIntoHiveDirCommand(
+ isLocal: Boolean,
+ storage: CatalogStorageFormat,
+ query: LogicalPlan,
+ overwrite: Boolean) extends SaveAsHiveFile {
+
+ override def children: Seq[LogicalPlan] = query :: Nil
+
+ override def run(sparkSession: SparkSession, children: Seq[SparkPlan]):
Seq[Row] = {
+ assert(children.length == 1)
+ assert(storage.locationUri.nonEmpty)
+
+ val Array(cols, types) = children.head.output.foldLeft(Array("", ""))
{ case (r, a) =>
+ r(0) = r(0) + a.name + ","
+ r(1) = r(1) + a.dataType.catalogString + ":"
+ r
+ }
+
+ val properties = new Properties()
+ properties.put("columns", cols.dropRight(1))
+ properties.put("columns.types", types.dropRight(1))
+
+ val sqlContext = sparkSession.sqlContext
+
+ properties.put(serdeConstants.SERIALIZATION_LIB,
+ storage.serde.getOrElse(classOf[LazySimpleSerDe].getName))
+
+ import scala.collection.JavaConverters._
+ properties.putAll(storage.properties.asJava)
+
+ var tableDesc = new TableDesc(
+ Utils.classForName(storage.inputFormat.get).asInstanceOf[Class[_ <:
InputFormat[_, _]]],
+ Utils.classForName(storage.outputFormat.get),
+ properties
+ )
--- End diff --
If we use val hiveTable =
HiveClientImpl.toHiveTable(dummyCatalogTableWithUserSpecifiedStorage), it
requires a tablename and a database name. but in our case, we dont have it.
I commented out my original code and implement the dummy hive table. Let me
know if that's ok to.
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