org.apache.tajo.engine.query.TestCreateIndex.java Source code

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Here is the source code for org.apache.tajo.engine.query.TestCreateIndex.java

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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.tajo.engine.query;

import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.tajo.IntegrationTest;
import org.apache.tajo.QueryTestCaseBase;
import org.apache.tajo.TajoConstants;
import org.apache.tajo.conf.TajoConf.ConfVars;
import org.junit.Test;
import org.junit.experimental.categories.Category;

import java.io.IOException;

import static org.junit.Assert.*;

@Category(IntegrationTest.class)
public class TestCreateIndex extends QueryTestCaseBase {

    public TestCreateIndex() {
        super(TajoConstants.DEFAULT_DATABASE_NAME);
    }

    private static void assertIndexNotExist(String databaseName, String indexName) throws IOException {
        Path indexPath = new Path(conf.getVar(ConfVars.WAREHOUSE_DIR), databaseName + "/" + indexName);
        FileSystem fs = indexPath.getFileSystem(conf);
        if (fs.exists(indexPath)) {
            fs.deleteOnExit(indexPath);
            assertFalse("Index is not deleted from the file system.", true);
        }
    }

    @Test
    public final void testCreateIndex() throws Exception {
        executeQuery();
        assertTrue(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_idx"));
        assertTrue(
                catalog.existIndexByColumnNames(getCurrentDatabase(), "lineitem", new String[] { "l_orderkey" }));
        executeString("drop index l_orderkey_idx");
        assertFalse(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_idx"));
        assertIndexNotExist(getCurrentDatabase(), "l_orderkey_idx");
    }

    @Test
    public final void testCreateIndexOnMultiAttrs() throws Exception {
        executeQuery();
        assertTrue(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_partkey_idx"));
        assertTrue(catalog.existIndexByColumnNames(getCurrentDatabase(), "lineitem",
                new String[] { "l_orderkey", "l_partkey" }));
        executeString("drop index l_orderkey_partkey_idx");
        assertFalse(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_partkey_idx"));
        assertIndexNotExist(getCurrentDatabase(), "l_orderkey_partkey_idx");
    }

    @Test
    public final void testCreateIndexWithCondition() throws Exception {
        executeQuery();
        assertTrue(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_partkey_lt10_idx"));
        assertTrue(catalog.existIndexByColumnNames(getCurrentDatabase(), "lineitem",
                new String[] { "l_orderkey", "l_partkey" }));
        executeString("drop index l_orderkey_partkey_lt10_idx");
        assertFalse(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_partkey_lt10_idx"));
        assertIndexNotExist(getCurrentDatabase(), "l_orderkey_partkey_lt10_idx");
    }

    @Test
    public final void testCreateIndexOnExpression() throws Exception {
        executeQuery();
        assertTrue(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_100_lt10_idx"));
        executeString("drop index l_orderkey_100_lt10_idx");
        assertFalse(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_100_lt10_idx"));
        assertIndexNotExist(getCurrentDatabase(), "l_orderkey_100_lt10_idx");
    }

    @Test
    public final void testCreateIndexOnMultiExprs() throws Exception {
        executeQuery();
        assertTrue(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_100_l_linenumber_10_lt10_idx"));
        executeString("drop index l_orderkey_100_l_linenumber_10_lt10_idx");
        assertFalse(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_100_l_linenumber_10_lt10_idx"));
        assertIndexNotExist(getCurrentDatabase(), "l_orderkey_100_l_linenumber_10_lt10_idx");
    }

    @Test
    public final void testCreateIndexOnLocation() throws Exception {
        executeQuery();
        assertTrue(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_idx"));
        assertTrue(
                catalog.existIndexByColumnNames(getCurrentDatabase(), "lineitem", new String[] { "l_orderkey" }));
        catalog.dropIndex(getCurrentDatabase(), "l_orderkey_idx");
        assertFalse(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_idx"));
        executeString(
                "create index l_orderkey_idx on lineitem (l_orderkey asc null first) location '/tajo/warehouse/default/l_orderkey_idx';");
        assertTrue(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_idx"));
        assertTrue(
                catalog.existIndexByColumnNames(getCurrentDatabase(), "lineitem", new String[] { "l_orderkey" }));
        executeString("drop index l_orderkey_idx");
        assertFalse(catalog.existIndexByName(getCurrentDatabase(), "l_orderkey_idx"));
        assertIndexNotExist(getCurrentDatabase(), "l_orderkey_idx");
    }
}