| /* |
| * 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.pig.test; |
| |
| import java.io.File; |
| |
| import org.apache.pig.PigServer; |
| import org.apache.pig.builtin.PigStorage; |
| import org.apache.pig.impl.logicalLayer.schema.Schema; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestLimitSchemaStore{ |
| |
| |
| private PigServer pigServer; |
| |
| @Before |
| public void setUp() throws Exception{ |
| pigServer = new PigServer(Util.getLocalTestMode()); |
| } |
| |
| |
| //PIG-2146 |
| @Test //end to end test |
| public void testLimitStoreSchema1() throws Exception{ |
| Util.createLocalInputFile("student", new String[]{"joe smith:18:3.5","amy brown:25:2.5","jim fox:20:4.0","leo fu:55:3.0"}); |
| |
| pigServer.registerQuery("a = load 'student' using " + PigStorage.class.getName() + "(':') as (name, age, gpa);"); |
| pigServer.registerQuery("d = distinct a;"); |
| pigServer.registerQuery("lim = limit d 1;"); |
| String outFile = "limitSchemaOut"; |
| Util.deleteDirectory(new File(outFile)); |
| pigServer.store("lim", outFile, "PigStorage('\\t', '-schema')"); |
| pigServer.dumpSchema("lim"); |
| |
| pigServer.registerQuery("b = LOAD '" + outFile + "' using PigStorage('\\t', '-schema');"); |
| Schema genSchema = pigServer.dumpSchema("b"); |
| System.err.println(genSchema); |
| Assert.assertNotNull(genSchema); |
| |
| } |
| |
| |
| } |