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Subject [GitHub] [spark] maropu commented on a change in pull request #26829: [SPARK-30200][SQL] Add ExplainMode for Dataset.explain
Date Wed, 11 Dec 2019 10:20:59 GMT
maropu commented on a change in pull request #26829: [SPARK-30200][SQL] Add ExplainMode for
Dataset.explain
URL: https://github.com/apache/spark/pull/26829#discussion_r356512418
 
 

 ##########
 File path: sql/core/src/main/java/org/apache/spark/sql/ExplainMode.java
 ##########
 @@ -0,0 +1,64 @@
+/*
+ * 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;
+
+import org.apache.spark.annotation.Unstable;
+
+/**
+ * ExplainMode is used to specify the expected output format of plans (logical and physical)
+ * for debugging purpose.
+ *
+ * @since 3.0.0
+ */
+@Unstable
+public enum ExplainMode {
+  /**
+   * Simple mode means that when printing explain for a DataFrame, only a physical plan is
+   * expected to be printed to the console.
+   *
+   * @since 3.0.0
+   */
+  Simple,
+  /**
+   * Extended mode means that when printing explain for a DataFrame, both logical and physical
+   * plans are expected to be printed to the console.
+   *
+   * @since 3.0.0
+   */
+  Extended,
+  /**
+   * Extended mode means that when printing explain for a DataFrame, if generated codes are
 
 Review comment:
   oh... I'll do follow-up, thanks!

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