/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.integrationtests;
import io.crate.action.sql.SQLActionException;
import io.crate.testing.UseJdbc;
import org.junit.Before;
import org.junit.Test;
@UseJdbc
public class StaticInformationSchemaQueryTest extends SQLTransportIntegrationTest {
@Before
public void tableCreation() throws Exception {
execute("create table t1 (col1 integer, col2 string) clustered into 7 shards");
execute("create table t2 (col1 integer, col2 string) clustered into 10 shards");
execute("create table t3 (col1 integer, col2 string) with (number_of_replicas=8)");
}
@Test
public void testSelectZeroLimit() throws Exception {
execute("select * from information_schema.columns limit 0");
assertEquals(0L, response.rowCount());
}
@Test
public void testSelectSysColumnsFromInformationSchema() throws Exception {
expectedException.expect(SQLActionException.class);
expectedException.expectMessage("Cannot resolve relation 'sys.nodes'");
execute("select sys.nodes.id, table_name, number_of_replicas from information_schema.tables");
}
@Test
public void testGroupByOnInformationSchema() throws Exception {
execute("select count(*) from information_schema.columns where table_schema = 'doc' group by table_name order by count(*) desc");
assertEquals(3L, response.rowCount());
execute("select count(*) from information_schema.columns where table_schema = 'doc' group by column_name order by count(*) desc");
assertEquals(2L, response.rowCount());
assertEquals(3L, response.rows()[0][0]);
}
@Test
public void testSelectStar() throws Exception {
execute("select * from information_schema.tables where table_schema = 'doc'");
assertEquals(3L, response.rowCount());
}
@Test
public void testLike() throws Exception {
execute("select * from information_schema.tables where table_schema = 'doc' and table_name like 't%'");
assertEquals(3L, response.rowCount());
}
@Test
public void testIsNull() throws Exception {
execute("select * from information_schema.tables where table_name is null");
assertEquals(0L, response.rowCount());
}
@Test
public void testIsNotNull() throws Exception {
execute("select * from information_schema.tables where table_name is not null and table_schema = 'doc'");
assertEquals(3L, response.rowCount());
}
@Test
public void testWhereAnd() throws Exception {
execute("select table_name from information_schema.tables where table_name='t1' and " +
"number_of_shards > 0");
assertEquals(1L, response.rowCount());
assertEquals("t1", response.rows()[0][0]);
}
@Test
public void testWhereAnd2() throws Exception {
execute("select table_name from information_schema.tables where number_of_shards >= 7 and " +
"number_of_replicas != '8' order by table_name asc");
assertEquals(2L, response.rowCount());
assertEquals("t1", response.rows()[0][0]);
assertEquals("t2", response.rows()[1][0]);
}
@Test
public void testWhereAnd3() throws Exception {
execute("select table_name from information_schema.tables where table_name is not null and " +
"number_of_shards > 6 order by table_name asc");
assertEquals(2L, response.rowCount());
assertEquals("t1", response.rows()[0][0]);
assertEquals("t2", response.rows()[1][0]);
}
@Test
public void testWhereOr() throws Exception {
execute("select table_name from information_schema.tables where table_name='t1' or table_name='t3' " +
"order by table_name asc");
assertEquals(2L, response.rowCount());
assertEquals("t1", response.rows()[0][0]);
assertEquals("t3", response.rows()[1][0]);
}
@Test
public void testWhereOr2() throws Exception {
execute("select table_name from information_schema.tables where table_name='t1' or table_name='t3' " +
"or table_name='t2'" +
"order by table_name desc");
assertEquals(3L, response.rowCount());
assertEquals("t3", response.rows()[0][0]);
assertEquals("t2", response.rows()[1][0]);
assertEquals("t1", response.rows()[2][0]);
}
@Test
public void testWhereIn() throws Exception {
execute("select table_name from information_schema.tables where table_name in ('t1', 't2') order by table_name asc");
assertEquals(2L, response.rowCount());
assertEquals("t1", response.rows()[0][0]);
assertEquals("t2", response.rows()[1][0]);
}
@Test
public void testNotEqualsString() throws Exception {
execute("select table_name from information_schema.tables where table_schema = 'doc' and table_name != 't1'");
assertEquals(2L, response.rowCount());
assertTrue(!response.rows()[0][0].equals("t1"));
assertTrue(!response.rows()[1][0].equals("t1"));
}
@Test
public void testNotEqualsNumber() throws Exception {
execute("select table_name, number_of_shards from information_schema.tables where table_schema = 'doc' and number_of_shards != 7");
assertEquals(2L, response.rowCount());
assertTrue((int) response.rows()[0][1] != 7);
assertTrue((int) response.rows()[1][1] != 7);
}
@Test
public void testEqualsNumber() throws Exception {
execute("select table_name from information_schema.tables where table_schema = 'doc' and number_of_shards = 7");
assertEquals(1L, response.rowCount());
assertEquals("t1", response.rows()[0][0]);
}
@Test
public void testEqualsString() throws Exception {
execute("select table_name from information_schema.tables where table_name = 't1'");
assertEquals(1L, response.rowCount());
assertEquals("t1", response.rows()[0][0]);
}
@Test
public void testGtNumber() throws Exception {
execute("select table_name from information_schema.tables where number_of_shards > 7");
assertEquals(1L, response.rowCount());
assertEquals("t2", response.rows()[0][0]);
}
@Test
public void testOrderByStringAndLimit() throws Exception {
execute("select table_name, number_of_shards, number_of_replicas from information_schema.tables " +
" where table_schema = 'doc' order by table_name desc limit 2");
assertEquals(2L, response.rowCount());
assertEquals("t3", response.rows()[0][0]);
assertEquals("t2", response.rows()[1][0]);
}
@Test
public void testOrderByNumberAndLimit() throws Exception {
execute("select table_name, number_of_shards, number_of_replicas from information_schema.tables " +
" order by number_of_shards desc limit 2");
assertEquals(2L, response.rowCount());
assertEquals(10, response.rows()[0][1]);
assertEquals("t2", response.rows()[0][0]);
assertEquals(7, response.rows()[1][1]);
assertEquals("t1", response.rows()[1][0]);
}
@Test
public void testLimit1() throws Exception {
execute("select * from information_schema.tables limit 1");
assertEquals(1L, response.rowCount());
}
@Test
public void testSelectUnknownTableFromInformationSchema() throws Exception {
expectedException.expect(SQLActionException.class);
expectedException.expectMessage("Table 'information_schema.non_existent' unknown");
execute("select * from information_schema.non_existent");
}
}