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/*
* 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 org.apache.hadoop.fs.Path
import org.apache.spark.sql.{AnalysisException, QueryTest, SaveMode}
import org.apache.spark.sql.catalyst.catalog.CatalogTableType
import org.apache.spark.sql.catalyst.TableIdentifier
import org.apache.spark.sql.hive.test.TestHiveSingleton
import org.apache.spark.sql.internal.SQLConf
import org.apache.spark.sql.test.SQLTestUtils
class HiveDDLSuite extends QueryTest with SQLTestUtils with TestHiveSingleton {
import hiveContext.implicits._
// check if the directory for recording the data of the table exists.
private def tableDirectoryExists(tableIdentifier: TableIdentifier): Boolean = {
val expectedTablePath =
hiveContext.sessionState.catalog.hiveDefaultTableFilePath(tableIdentifier)
val filesystemPath = new Path(expectedTablePath)
val fs = filesystemPath.getFileSystem(sparkContext.hadoopConfiguration)
fs.exists(filesystemPath)
}
test("drop tables") {
withTable("tab1") {
val tabName = "tab1"
assert(!tableDirectoryExists(TableIdentifier(tabName)))
sql(s"CREATE TABLE $tabName(c1 int)")
assert(tableDirectoryExists(TableIdentifier(tabName)))
sql(s"DROP TABLE $tabName")
assert(!tableDirectoryExists(TableIdentifier(tabName)))
sql(s"DROP TABLE IF EXISTS $tabName")
sql(s"DROP VIEW IF EXISTS $tabName")
}
}
test("drop managed tables") {
withTempDir { tmpDir =>
val tabName = "tab1"
withTable(tabName) {
assert(tmpDir.listFiles.isEmpty)
sql(
s"""
|create table $tabName
|stored as parquet
|location '$tmpDir'
|as select 1, '3'
""".stripMargin)
val hiveTable =
hiveContext.sessionState.catalog
.getTableMetadata(TableIdentifier(tabName, Some("default")))
// It is a managed table, although it uses external in SQL
assert(hiveTable.tableType == CatalogTableType.MANAGED_TABLE)
assert(tmpDir.listFiles.nonEmpty)
sql(s"DROP TABLE $tabName")
// The data are deleted since the table type is not EXTERNAL
assert(tmpDir.listFiles == null)
}
}
}
test("drop external data source table") {
withTempDir { tmpDir =>
val tabName = "tab1"
withTable(tabName) {
assert(tmpDir.listFiles.isEmpty)
withSQLConf(SQLConf.PARQUET_WRITE_LEGACY_FORMAT.key -> "true") {
Seq(1 -> "a").toDF("i", "j")
.write
.mode(SaveMode.Overwrite)
.format("parquet")
.option("path", tmpDir.toString)
.saveAsTable(tabName)
}
val hiveTable =
hiveContext.sessionState.catalog
.getTableMetadata(TableIdentifier(tabName, Some("default")))
// This data source table is external table
assert(hiveTable.tableType == CatalogTableType.EXTERNAL_TABLE)
assert(tmpDir.listFiles.nonEmpty)
sql(s"DROP TABLE $tabName")
// The data are not deleted since the table type is EXTERNAL
assert(tmpDir.listFiles.nonEmpty)
}
}
}
test("drop views") {
withTable("tab1") {
val tabName = "tab1"
sqlContext.range(10).write.saveAsTable("tab1")
withView("view1") {
val viewName = "view1"
assert(tableDirectoryExists(TableIdentifier(tabName)))
assert(!tableDirectoryExists(TableIdentifier(viewName)))
sql(s"CREATE VIEW $viewName AS SELECT * FROM tab1")
assert(tableDirectoryExists(TableIdentifier(tabName)))
assert(!tableDirectoryExists(TableIdentifier(viewName)))
sql(s"DROP VIEW $viewName")
assert(tableDirectoryExists(TableIdentifier(tabName)))
sql(s"DROP VIEW IF EXISTS $viewName")
}
}
}
test("drop table using drop view") {
withTable("tab1") {
sql("CREATE TABLE tab1(c1 int)")
val message = intercept[AnalysisException] {
sql("DROP VIEW tab1")
}.getMessage
assert(message.contains("Cannot drop a table with DROP VIEW. Please use DROP TABLE instead"))
}
}
test("drop view using drop table") {
withTable("tab1") {
sqlContext.range(10).write.saveAsTable("tab1")
withView("view1") {
sql("CREATE VIEW view1 AS SELECT * FROM tab1")
val message = intercept[AnalysisException] {
sql("DROP TABLE view1")
}.getMessage
assert(message.contains("Cannot drop a view with DROP TABLE. Please use DROP VIEW instead"))
}
}
}
}
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