| /** |
| * 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.tajo.engine.query; |
| |
| import org.apache.tajo.IntegrationTest; |
| import org.apache.tajo.TajoTestingCluster; |
| import org.apache.tajo.catalog.CatalogConstants; |
| import org.apache.tajo.catalog.Options; |
| import org.apache.tajo.catalog.Schema; |
| import org.apache.tajo.common.TajoDataTypes.Type; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import java.sql.ResultSet; |
| |
| import static org.junit.Assert.*; |
| |
| /** |
| * This is the unit test for null values. This test needs specialized data sets. |
| * So, We separated it from other unit tests using TPC-H data set. |
| */ |
| @Category(IntegrationTest.class) |
| public class TestNullValues { |
| |
| @Test |
| public final void testIsNull() throws Exception { |
| String [] table = new String[] {"nulltable1"}; |
| Schema schema = new Schema(); |
| schema.addColumn("col1", Type.INT4); |
| schema.addColumn("col2", Type.TEXT); |
| schema.addColumn("col3", Type.FLOAT4); |
| Schema [] schemas = new Schema[] {schema}; |
| String [] data = { |
| "1|filled|0.1", |
| "2||", |
| "3|filled|0.2" |
| }; |
| Options opts = new Options(); |
| opts.put(CatalogConstants.CSVFILE_DELIMITER, CatalogConstants.CSVFILE_DELIMITER_DEFAULT); |
| ResultSet res = TajoTestingCluster |
| .run(table, schemas, opts, new String[][]{data}, |
| "select * from nulltable1 where col3 is null"); |
| try { |
| assertTrue(res.next()); |
| assertEquals(2, res.getInt(1)); |
| assertFalse(res.next()); |
| } finally { |
| res.close(); |
| } |
| } |
| |
| @Test |
| public final void testIsNotNull() throws Exception { |
| String [] table = new String[] {"nulltable2"}; |
| Schema schema = new Schema(); |
| schema.addColumn("col1", Type.INT4); |
| schema.addColumn("col2", Type.TEXT); |
| Schema [] schemas = new Schema[] {schema}; |
| String [] data = { |
| "1|filled|", |
| "||", |
| "3|filled|" |
| }; |
| Options opts = new Options(); |
| opts.put(CatalogConstants.CSVFILE_DELIMITER, CatalogConstants.CSVFILE_DELIMITER_DEFAULT); |
| ResultSet res = TajoTestingCluster |
| .run(table, schemas, opts, new String[][]{data}, |
| "select * from nulltable2 where col1 is not null"); |
| try { |
| assertTrue(res.next()); |
| assertEquals(1, res.getInt(1)); |
| assertTrue(res.next()); |
| assertEquals(3, res.getInt(1)); |
| assertFalse(res.next()); |
| } finally { |
| res.close(); |
| } |
| } |
| |
| @Test |
| public final void testIsNotNull2() throws Exception { |
| String [] table = new String[] {"nulltable3"}; |
| Schema schema = new Schema(); |
| schema.addColumn("col1", Type.INT8); |
| schema.addColumn("col2", Type.INT8); |
| schema.addColumn("col3", Type.INT8); |
| schema.addColumn("col4", Type.INT8); |
| schema.addColumn("col5", Type.INT8); |
| schema.addColumn("col6", Type.INT8); |
| schema.addColumn("col7", Type.INT8); |
| schema.addColumn("col8", Type.INT8); |
| schema.addColumn("col9", Type.INT8); |
| schema.addColumn("col10", Type.INT8); |
| Schema [] schemas = new Schema[] {schema}; |
| String [] data = { |
| ",,,,672287821,1301460,1,313895860387,126288907,1024", |
| ",,,43578,19,13,6,3581,2557,1024" |
| }; |
| Options opts = new Options(); |
| opts.put(CatalogConstants.CSVFILE_DELIMITER, ","); |
| ResultSet res = TajoTestingCluster |
| .run(table, schemas, opts, new String[][]{data}, |
| "select * from nulltable3 where col1 is null and col2 is null and col3 is null and col4 = 43578"); |
| try { |
| assertTrue(res.next()); |
| assertEquals(43578, res.getLong(4)); |
| assertFalse(res.next()); |
| } finally { |
| res.close(); |
| } |
| } |
| |
| @Test |
| public final void testIsNotNull3() throws Exception { |
| String [] table = new String[] {"nulltable4"}; |
| Schema schema = new Schema(); |
| schema.addColumn("col1", Type.INT8); |
| schema.addColumn("col2", Type.INT8); |
| schema.addColumn("col3", Type.INT8); |
| schema.addColumn("col4", Type.INT8); |
| schema.addColumn("col5", Type.INT8); |
| schema.addColumn("col6", Type.INT8); |
| schema.addColumn("col7", Type.INT8); |
| schema.addColumn("col8", Type.INT8); |
| schema.addColumn("col9", Type.INT8); |
| schema.addColumn("col10", Type.INT8); |
| Schema [] schemas = new Schema[] {schema}; |
| String [] data = { |
| "\\N,,,,672287821,", |
| ",\\N,,43578" |
| }; |
| Options opts = new Options(); |
| opts.put(CatalogConstants.CSVFILE_DELIMITER, ","); |
| opts.put(CatalogConstants.CSVFILE_NULL, "\\\\N"); |
| ResultSet res = TajoTestingCluster |
| .run(table, schemas, opts, new String[][]{data}, |
| "select * from nulltable4 where col1 is null and col2 is null and col3 is null and col5 is null and col4 = 43578"); |
| try { |
| assertTrue(res.next()); |
| assertEquals(43578, res.getLong(4)); |
| assertFalse(res.next()); |
| } finally { |
| res.close(); |
| } |
| } |
| } |