/*
* Licensed 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 com.facebook.presto.tests;
import com.facebook.presto.tests.tpch.TpchQueryRunner;
import com.google.common.base.Strings;
import org.intellij.lang.annotations.Language;
import org.testng.annotations.Test;
import static org.testng.Assert.assertTrue;
public class TestTpchDistributedQueries
extends AbstractTestQueries
{
public TestTpchDistributedQueries()
throws Exception
{
super(TpchQueryRunner::createQueryRunner);
}
@Test
public void testTooLongQuery()
{
// Generate a super-long query: SELECT x,x,x,x,x,... FROM (VALUES 1,2,3,4,5) t(x)
@Language("SQL") String longQuery = "SELECT x" + Strings.repeat(",x", 500_000) + " FROM (VALUES 1,2,3,4,5) t(x)";
assertQueryFails(longQuery, "Query text length \\(1000037\\) exceeds the maximum length \\(1000000\\)");
}
@Test
public void testTableSampleSystem()
{
int total = computeActual("SELECT orderkey FROM orders").getMaterializedRows().size();
boolean sampleSizeFound = false;
for (int i = 0; i < 100; i++) {
int sampleSize = computeActual("SELECT orderkey FROM ORDERS TABLESAMPLE SYSTEM (50)").getMaterializedRows().size();
if (sampleSize > 0 && sampleSize < total) {
sampleSizeFound = true;
break;
}
}
assertTrue(sampleSizeFound, "Table sample returned unexpected number of rows");
}
}