/**
* 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.exec.store.parquet;
import org.apache.drill.BaseTestQuery;
import org.apache.drill.common.exceptions.UserRemoteException;
import org.junit.Test;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class TestParquetGroupScan extends BaseTestQuery {
private void prepareTables(final String tableName, boolean refreshMetadata) throws Exception {
// first create some parquet subfolders
testNoResult("CREATE TABLE dfs_test.tmp.`%s` AS SELECT employee_id FROM cp.`employee.json` LIMIT 1", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/501` AS SELECT employee_id FROM cp.`employee.json` LIMIT 2", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/502` AS SELECT employee_id FROM cp.`employee.json` LIMIT 4", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/503` AS SELECT employee_id FROM cp.`employee.json` LIMIT 8", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/504` AS SELECT employee_id FROM cp.`employee.json` LIMIT 16", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/505` AS SELECT employee_id FROM cp.`employee.json` LIMIT 32", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/60` AS SELECT employee_id FROM cp.`employee.json` LIMIT 64", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/602` AS SELECT employee_id FROM cp.`employee.json` LIMIT 128", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/6031` AS SELECT employee_id FROM cp.`employee.json` LIMIT 256", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/6032` AS SELECT employee_id FROM cp.`employee.json` LIMIT 512", tableName);
testNoResult("CREATE TABLE dfs_test.tmp.`%s/6033` AS SELECT employee_id FROM cp.`employee.json` LIMIT 1024", tableName);
// we need an empty subfolder `4376/20160401`
// to do this we first create a table inside that subfolder
testNoResult("CREATE TABLE dfs_test.tmp.`%s/6041/a` AS SELECT * FROM cp.`employee.json` LIMIT 1", tableName);
// then we delete the table, leaving the parent subfolder empty
testNoResult("DROP TABLE dfs_test.tmp.`%s/6041/a`", tableName);
if (refreshMetadata) {
// build the metadata cache file
testNoResult("REFRESH TABLE METADATA dfs_test.tmp.`%s`", tableName);
}
}
@Test
public void testFix4376() throws Exception {
prepareTables("4376_1", true);
testBuilder()
.sqlQuery("SELECT COUNT(*) AS `count` FROM dfs_test.tmp.`4376_1/60*`")
.ordered()
.baselineColumns("count").baselineValues(1984L)
.go();
}
@Test
public void testWildCardEmptyWithCache() throws Exception {
prepareTables("4376_2", true);
try {
runSQL("SELECT COUNT(*) AS `count` FROM dfs_test.tmp.`4376_2/604*`");
fail("Query should've failed!");
} catch (UserRemoteException uex) {
final String expectedMsg = "The table you tried to query is empty";
assertTrue(String.format("Error message should contain \"%s\" but was instead \"%s\"", expectedMsg,
uex.getMessage()), uex.getMessage().contains(expectedMsg));
}
}
@Test
public void testWildCardEmptyNoCache() throws Exception {
prepareTables("4376_3", false);
try {
runSQL("SELECT COUNT(*) AS `count` FROM dfs_test.tmp.`4376_3/604*`");
fail("Query should've failed!");
} catch (UserRemoteException uex) {
final String expectedMsg = "Table 'dfs_test.tmp.4376_3/604*' not found";
assertTrue(String.format("Error message should contain \"%s\" but was instead \"%s\"", expectedMsg,
uex.getMessage()), uex.getMessage().contains(expectedMsg));
}
}
@Test
public void testSelectEmptyWithCache() throws Exception {
prepareTables("4376_4", true);
try {
runSQL("SELECT COUNT(*) AS `count` FROM dfs_test.tmp.`4376_4/6041`");
fail("Query should've failed!");
} catch (UserRemoteException uex) {
final String expectedMsg = "The table you tried to query is empty";
assertTrue(String.format("Error message should contain \"%s\" but was instead \"%s\"", expectedMsg,
uex.getMessage()), uex.getMessage().contains(expectedMsg));
}
}
@Test
public void testSelectEmptyNoCache() throws Exception {
prepareTables("4376_5", false);
try {
runSQL("SELECT COUNT(*) AS `count` FROM dfs_test.tmp.`4376_5/6041`");
fail("Query should've failed!");
} catch (UserRemoteException uex) {
final String expectedMsg = "Table 'dfs_test.tmp.4376_5/6041' not found";
assertTrue(String.format("Error message should contain \"%s\" but was instead \"%s\"", expectedMsg,
uex.getMessage()), uex.getMessage().contains(expectedMsg));
}
}
}