/*
* Licensed to 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.planner.consumer;
import io.crate.planner.node.dql.Collect;
import io.crate.planner.node.dql.QueryThenFetch;
import io.crate.planner.projection.*;
import io.crate.test.integration.CrateDummyClusterServiceUnitTest;
import io.crate.testing.SQLExecutor;
import io.crate.testing.T3;
import org.hamcrest.Matchers;
import org.junit.Before;
import org.junit.Test;
import java.util.List;
import static org.hamcrest.Matchers.instanceOf;
public class GlobalAggregatePlannerTest extends CrateDummyClusterServiceUnitTest {
private SQLExecutor e;
@Before
public void setUpExecutor() throws Exception {
e = SQLExecutor.builder(clusterService).addDocTable(T3.T1_INFO).build();
}
@Test
public void testAggregateOnSubQueryHasNoFilterProjectionWithoutWhereAndHaving() throws Exception {
Collect plan = e.plan("select sum(x) from (select x from t1 order by x limit 10) ti");
for (Projection projection : plan.collectPhase().projections()) {
assertThat(projection, Matchers.not(instanceOf(FilterProjection.class)));
}
}
@Test
public void testAggregateOnSubQueryUsesQueryThenFetchIfPossible() throws Exception {
QueryThenFetch plan = e.plan("select sum(x) from (select x, i from t1 order by x limit 10) ti");
List<Projection> projections = ((Collect) plan.subPlan()).collectPhase().projections();
assertThat(projections, Matchers.contains(
instanceOf(TopNProjection.class),
instanceOf(TopNProjection.class),
instanceOf(FetchProjection.class),
instanceOf(AggregationProjection.class),
instanceOf(EvalProjection.class)
));
}
}