Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/15024#discussion_r86086688 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/sources/PathOptionSuite.scala --- @@ -0,0 +1,97 @@ +/* +* 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.sources + +import org.apache.spark.sql.{DataFrame, SaveMode, SparkSession, SQLContext} +import org.apache.spark.sql.catalyst.TableIdentifier +import org.apache.spark.sql.execution.datasources.LogicalRelation +import org.apache.spark.sql.test.SharedSQLContext +import org.apache.spark.sql.types.StructType + +class TestOptionsSource extends RelationProvider with CreatableRelationProvider { + + override def createRelation( + sqlContext: SQLContext, + parameters: Map[String, String]): BaseRelation = { + new TestOptionsRelation(parameters)(sqlContext.sparkSession) + } + + override def createRelation( + sqlContext: SQLContext, + mode: SaveMode, + parameters: Map[String, String], + data: DataFrame): BaseRelation = { + new TestOptionsRelation(parameters)(sqlContext.sparkSession) + } +} + +class TestOptionsRelation(val options: Map[String, String])(@transient val session: SparkSession) + extends BaseRelation { + + override def sqlContext: SQLContext = session.sqlContext + + override def schema: StructType = new StructType().add("i", "int") +} + +class PathOptionSuite extends DataSourceTest with SharedSQLContext { + + test("path option always exist") { + withTable("src") { + sql( + s""" + |CREATE TABLE src(i int) + |USING ${classOf[TestOptionsSource].getCanonicalName} + |OPTIONS (PATH '/tmp/path')""".stripMargin) + assert(getPathOption("src") == Some("/tmp/path")) + } + + // should exist even path option is not specified when creating table + withTable("src") { + sql(s"CREATE TABLE src(i int) USING ${classOf[TestOptionsSource].getCanonicalName}") + assert(getPathOption("src") == Some(defaultTablePath("src"))) + } + } + + test("path option always represent the value of table location") { + withTable("src") { + sql( + s""" + |CREATE TABLE src(i int) + |USING ${classOf[TestOptionsSource].getCanonicalName} + |OPTIONS (PATH '/tmp/path')""".stripMargin) + sql("ALTER TABLE src SET LOCATION '/tmp/path2'") + assert(getPathOption("src") == Some("/tmp/path2")) + } + + withTable("src", "src2") { + sql(s"CREATE TABLE src(i int) USING ${classOf[TestOptionsSource].getCanonicalName}") + sql("ALTER TABLE src RENAME TO src2") --- End diff -- Agree. But we still need a test case to verify the code path and the behavior you mentioned above. So far, it sounds like we do not have any end-to-end test case for `RENAME TABLE` using HiveExternalCatalog. I manually verified it and it works.
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