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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.drill;
import org.apache.drill.categories.SqlTest;
import org.apache.drill.categories.UnlikelyTest;
import org.apache.drill.common.exceptions.UserException;
import org.apache.hadoop.fs.Path;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.Assert;
import org.junit.experimental.categories.Category;
@Category(SqlTest.class)
public class TestDropTable extends PlanTestBase {
private static final String CREATE_SIMPLE_TABLE = "create table `%s` as select 1 from cp.`employee.json`";
private static final String CREATE_SIMPLE_VIEW = "create view `%s` as select 1 from cp.`employee.json`";
private static final String DROP_TABLE = "drop table `%s`";
private static final String DROP_TABLE_IF_EXISTS = "drop table if exists `%s`";
private static final String DROP_VIEW_IF_EXISTS = "drop view if exists `%s`";
@BeforeClass
public static void setup() throws Exception {
test("use dfs.tmp");
}
@Test
public void testDropJsonTable() throws Exception {
test("alter session set `store.format` = 'json'");
final String tableName = "simple_json";
// create a json table
test(CREATE_SIMPLE_TABLE, tableName);
// drop the table
testBuilder()
.sqlQuery(DROP_TABLE, tableName)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", tableName))
.go();
}
@Test
public void testDropParquetTable() throws Exception {
final String tableName = "simple_json";
// create a parquet table
test(CREATE_SIMPLE_TABLE, tableName);
// drop the table
testBuilder()
.sqlQuery(DROP_TABLE, tableName)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", tableName))
.go();
}
@Test
public void testDropTextTable() throws Exception {
test("alter session set `store.format` = 'csv'");
final String csvTable = "simple_csv";
// create a csv table
test(CREATE_SIMPLE_TABLE, csvTable);
// drop the table
testBuilder()
.sqlQuery(DROP_TABLE, csvTable)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", csvTable))
.go();
test("alter session set `store.format` = 'psv'");
final String psvTable = "simple_psv";
// create a psv table
test(CREATE_SIMPLE_TABLE, psvTable);
// drop the table
testBuilder()
.sqlQuery(DROP_TABLE, psvTable)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", psvTable))
.go();
test("alter session set `store.format` = 'tsv'");
final String tsvTable = "simple_tsv";
// create a tsv table
test(CREATE_SIMPLE_TABLE, tsvTable);
// drop the table
testBuilder()
.sqlQuery(DROP_TABLE, tsvTable)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", tsvTable))
.go();
}
@Test
public void testNonHomogenousDrop() throws Exception {
final String tableName = "homogenous_table";
// create a parquet table
test(String.format(CREATE_SIMPLE_TABLE, tableName));
// create a json table within the same directory
test("alter session set `store.format` = 'json'");
final String nestedJsonTable = tableName + Path.SEPARATOR + "json_table";
test(CREATE_SIMPLE_TABLE, nestedJsonTable);
boolean dropFailed = false;
// this should fail, because the directory contains non-homogenous files
try {
test(DROP_TABLE, tableName);
} catch (UserException e) {
Assert.assertTrue(e.getMessage().contains("VALIDATION ERROR"));
dropFailed = true;
}
Assert.assertTrue("Dropping of non-homogeneous table should have failed", dropFailed);
// drop the individual json table
testBuilder()
.sqlQuery(DROP_TABLE, nestedJsonTable)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", nestedJsonTable))
.go();
// Now drop should succeed
testBuilder()
.sqlQuery(DROP_TABLE, tableName)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", tableName))
.go();
}
@Test
public void testDropOnImmutableSchema() throws Exception {
boolean dropFailed = false;
try {
test("drop table dfs.`tmp`");
} catch (UserException e) {
Assert.assertTrue(e.getMessage().contains("VALIDATION ERROR"));
dropFailed = true;
}
Assert.assertTrue("Dropping table on immutable schema failed", dropFailed);
}
@Test // DRILL-4673
@Category(UnlikelyTest.class)
public void testDropTableIfExistsWhileTableExists() throws Exception {
final String existentTableName = "test_table_exists";
// successful dropping of existent table
test(CREATE_SIMPLE_TABLE, existentTableName);
testBuilder()
.sqlQuery(DROP_TABLE_IF_EXISTS, existentTableName)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", existentTableName))
.go();
}
@Test // DRILL-4673
@Category(UnlikelyTest.class)
public void testDropTableIfExistsWhileTableDoesNotExist() throws Exception {
final String nonExistentTableName = "test_table_not_exists";
// dropping of non existent table without error
testBuilder()
.sqlQuery(DROP_TABLE_IF_EXISTS, nonExistentTableName)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(false, String.format("Table [%s] not found", nonExistentTableName))
.go();
}
@Test // DRILL-4673
@Category(UnlikelyTest.class)
public void testDropTableIfExistsWhileItIsAView() throws Exception {
final String viewName = "test_view";
try {
// dropping of non existent table without error if the view with such name is existed
test(CREATE_SIMPLE_VIEW, viewName);
testBuilder()
.sqlQuery(DROP_TABLE_IF_EXISTS, viewName)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(false, String.format("Table [%s] not found", viewName))
.go();
} finally {
test(DROP_VIEW_IF_EXISTS, viewName);
}
}
@Test
public void testDropTableNameStartsWithSlash() throws Exception {
String tableName = "test_table_starts_with_slash_drop";
try {
test(CREATE_SIMPLE_TABLE, tableName);
testBuilder()
.sqlQuery(DROP_TABLE, "/" + tableName)
.unOrdered()
.baselineColumns("ok", "summary")
.baselineValues(true, String.format("Table [%s] dropped", tableName))
.go();
} finally {
test(DROP_TABLE_IF_EXISTS, tableName);
}
}
}
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