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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.phoenix.compile;
import static org.apache.phoenix.util.TestUtil.TEST_PROPERTIES;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.phoenix.jdbc.PhoenixConnection;
import org.apache.phoenix.jdbc.PhoenixPreparedStatement;
import org.apache.phoenix.query.BaseConnectionlessQueryTest;
import org.apache.phoenix.schema.PDataType;
import org.apache.phoenix.util.ByteUtil;
import org.apache.phoenix.util.PropertiesUtil;
import org.apache.phoenix.util.TestUtil;
import org.junit.Test;
public class LimitCompilerTest extends BaseConnectionlessQueryTest {
private static QueryPlan compileStatement(String query, List<Object> binds) throws SQLException {
PhoenixConnection pconn = DriverManager.getConnection(getUrl(), PropertiesUtil.deepCopy(TEST_PROPERTIES)).unwrap(PhoenixConnection.class);
PhoenixPreparedStatement pstmt = new PhoenixPreparedStatement(pconn, query);
TestUtil.bindParams(pstmt, binds);
return pstmt.compileQuery();
}
@Test
public void testLimit() throws SQLException {
String tenantId = "000000000000001";
String query = "select * from atable where organization_id='" + tenantId + "' limit 5";
List<Object> binds = Collections.emptyList();
QueryPlan plan = compileStatement(query, binds);
Scan scan = plan.getContext().getScan();
assertNull(scan.getFilter());
assertArrayEquals(PDataType.VARCHAR.toBytes(tenantId), scan.getStartRow());
assertArrayEquals(ByteUtil.nextKey(PDataType.VARCHAR.toBytes(tenantId)), scan.getStopRow());
assertEquals(plan.getLimit(),Integer.valueOf(5));
}
@Test
public void testNoLimit() throws SQLException {
String tenantId = "000000000000001";
String query = "select * from atable where organization_id='" + tenantId + "'";
List<Object> binds = Collections.emptyList();
QueryPlan plan = compileStatement(query, binds);
Scan scan = plan.getContext().getScan();
assertNull(scan.getFilter());
assertNull(plan.getLimit());
assertArrayEquals(PDataType.VARCHAR.toBytes(tenantId), scan.getStartRow());
assertArrayEquals(ByteUtil.nextKey(PDataType.VARCHAR.toBytes(tenantId)), scan.getStopRow());
}
@Test
public void testBoundLimit() throws SQLException {
String tenantId = "000000000000001";
String query = "select * from atable where organization_id='" + tenantId + "' limit ?";
List<Object> binds = Arrays.<Object>asList(5);
QueryPlan plan = compileStatement(query, binds);
Scan scan = plan.getContext().getScan();
assertNull(scan.getFilter());
assertArrayEquals(PDataType.VARCHAR.toBytes(tenantId), scan.getStartRow());
assertArrayEquals(ByteUtil.nextKey(PDataType.VARCHAR.toBytes(tenantId)), scan.getStopRow());
assertEquals(plan.getLimit(),Integer.valueOf(5));
}
@Test
public void testTypeMismatchBoundLimit() throws SQLException {
String query = "select * from atable limit ?";
List<Object> binds = Arrays.<Object>asList("foo");
try {
compileStatement(query, binds);
fail();
} catch (SQLException e) {
assertTrue(e.getMessage().contains("Type mismatch"));
}
}
@Test
public void testNegativeBoundLimit() throws SQLException {
String query = "select * from atable limit ?";
List<Object> binds = Arrays.<Object>asList(-1);
QueryPlan plan = compileStatement(query, binds);
assertNull(plan.getLimit());
}
@Test
public void testBindTypeMismatch() throws SQLException {
Long tenantId = Long.valueOf(0);
String keyPrefix = "002";
List<Object> binds = Arrays.<Object>asList(tenantId,keyPrefix);
String query = "select * from atable where organization_id=? and substr(entity_id,1,3)=?";
try {
compileStatement(query, binds);
fail();
} catch (SQLException e) {
assertTrue(e.getMessage(), e.getMessage().contains("ERROR 203 (22005): Type mismatch."));
}
}
}