| /* |
| * 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.end2end; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.PreparedStatement; |
| import java.sql.ResultSet; |
| |
| import org.junit.Test; |
| |
| |
| public class IsNullIT extends ParallelStatsDisabledIT { |
| @Test |
| public void testIsNullInPk() throws Exception { |
| String tableName = generateUniqueName(); |
| ensureTableCreated(getUrl(), tableName, "IntIntKeyTest"); |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String upsert = "UPSERT INTO " + tableName + " VALUES(4,2)"; |
| PreparedStatement upsertStmt = conn.prepareStatement(upsert); |
| int rowsInserted = upsertStmt.executeUpdate(); |
| assertEquals(1, rowsInserted); |
| upsert = "UPSERT INTO " + tableName + " VALUES(6)"; |
| upsertStmt = conn.prepareStatement(upsert); |
| rowsInserted = upsertStmt.executeUpdate(); |
| assertEquals(1, rowsInserted); |
| conn.commit(); |
| |
| String select = "SELECT i/j FROM " + tableName + " WHERE j IS NULL"; |
| ResultSet rs; |
| rs = conn.createStatement().executeQuery(select); |
| assertTrue(rs.next()); |
| assertEquals(0,rs.getInt(1)); |
| assertTrue(rs.wasNull()); |
| assertFalse(rs.next()); |
| select = "SELECT i/j FROM " + tableName + " WHERE j IS NOT NULL"; |
| rs = conn.createStatement().executeQuery(select); |
| assertTrue(rs.next()); |
| assertEquals(2,rs.getInt(1)); |
| assertFalse(rs.next()); |
| } |
| |
| @Test |
| public void testIsNullWithLastPKColDesc() throws Exception { |
| String tableName = generateUniqueName(); |
| Connection conn = DriverManager.getConnection(getUrl()); |
| conn.createStatement().execute("CREATE TABLE " + tableName + "(k1 VARCHAR NOT NULL, k2 VARCHAR, k3 VARCHAR, CONSTRAINT pk PRIMARY KEY (k1, k2, k3 DESC))"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " VALUES ('a')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " VALUES ('b')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " VALUES ('b',null,'c')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " VALUES ('ba', null, 'd')"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery("SELECT k1,k2,k3 FROM " + tableName + " WHERE k1='b' AND k2 IS NULL"); |
| assertTrue(rs.next()); |
| assertEquals("b",rs.getString(1)); |
| assertNull(rs.getString(2)); |
| assertNull(rs.getString(3)); |
| |
| assertTrue(rs.next()); |
| assertEquals("b",rs.getString(1)); |
| assertNull(rs.getString(2)); |
| assertEquals("c",rs.getString(3)); |
| |
| assertFalse(rs.next()); |
| conn.close(); |
| } |
| |
| @Test |
| public void testIsNullInCompositeKey() throws Exception { |
| Connection conn = DriverManager.getConnection(getUrl()); |
| String tableName = generateUniqueName(); |
| conn.createStatement().execute("CREATE TABLE " + tableName + "(k1 VARCHAR, k2 VARCHAR, CONSTRAINT pk PRIMARY KEY (k1,k2))"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " VALUES (null,'a')"); |
| conn.createStatement().execute("UPSERT INTO " + tableName + " VALUES ('a','a')"); |
| conn.commit(); |
| |
| ResultSet rs = conn.createStatement().executeQuery("SELECT count(*) FROM " + tableName); |
| assertTrue(rs.next()); |
| assertEquals(2,rs.getInt(1)); |
| rs = conn.createStatement().executeQuery("SELECT count(*) FROM " + tableName + " WHERE k1 = 'a' or k1 is null"); |
| assertTrue(rs.next()); |
| assertEquals(2,rs.getInt(1)); |
| conn.close(); |
| } |
| |
| } |