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*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
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* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
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package org.teiid.query.optimizer;
import static org.junit.Assert.*;
import static org.teiid.query.optimizer.TestOptimizer.*;
import org.junit.BeforeClass;
import org.junit.Test;
import org.teiid.metadata.Table;
import org.teiid.query.metadata.TransformationMetadata;
import org.teiid.query.optimizer.TestOptimizer.ComparisonMode;
import org.teiid.query.optimizer.capabilities.BasicSourceCapabilities;
import org.teiid.query.optimizer.capabilities.DefaultCapabilitiesFinder;
import org.teiid.query.optimizer.capabilities.SourceCapabilities.Capability;
import org.teiid.query.optimizer.relational.rules.RulePlaceAccess;
import org.teiid.query.processor.relational.AccessNode;
import org.teiid.query.processor.relational.RelationalPlan;
import org.teiid.query.unittest.RealMetadataFactory;
@SuppressWarnings("nls")
public class TestConformedTables {
private static TransformationMetadata tm;
@BeforeClass public static void oneTimeSetup() throws Exception {
tm = RealMetadataFactory.example1();
Table t = tm.getGroupID("pm1.g1");
t.setProperty(RulePlaceAccess.CONFORMED_SOURCES, "pm2");
t = tm.getGroupID("pm2.g3");
t.setProperty(RulePlaceAccess.CONFORMED_SOURCES, "pm1");
t = tm.getGroupID("pm2.g1");
t.setProperty(RulePlaceAccess.CONFORMED_SOURCES, "pm3");
}
@Test public void testConformedJoin() throws Exception {
String sql = "select pm1.g1.e1 from pm1.g1, pm2.g2 where g1.e1=g2.e1";
RelationalPlan plan = (RelationalPlan)helpPlan(sql, tm, new String[] {"SELECT g_0.e1 FROM pm1.g1 AS g_0, pm2.g2 AS g_1 WHERE g_0.e1 = g_1.e1"}, ComparisonMode.EXACT_COMMAND_STRING);
AccessNode anode = (AccessNode) plan.getRootNode();
assertEquals("pm2", anode.getModelName());
//it should work either way
sql = "select pm1.g1.e1 from pm2.g2, pm1.g1 where g1.e1=g2.e1";
plan = (RelationalPlan)helpPlan(sql, tm, new String[] {"SELECT g_1.e1 FROM pm2.g2 AS g_0, pm1.g1 AS g_1 WHERE g_1.e1 = g_0.e1"}, ComparisonMode.EXACT_COMMAND_STRING);
anode = (AccessNode) plan.getRootNode();
assertEquals("pm2", anode.getModelName());
}
@Test public void testConformedJoin1() throws Exception {
String sql = "select pm1.g1.e1 from pm1.g1, pm2.g1 where pm1.g1.e1=pm2.g1.e1";
helpPlan(sql, tm, new String[] {"SELECT g_0.e1 FROM pm1.g1 AS g_0, pm2.g1 AS g_1 WHERE g_0.e1 = g_1.e1"}, ComparisonMode.EXACT_COMMAND_STRING);
}
@Test public void testConformedSubquery() throws Exception {
String sql = "select pm2.g2.e1 from pm2.g2 where e1 in /*+ no_unnest */ (select e1 from pm1.g1)";
BasicSourceCapabilities bsc = getTypicalCapabilities();
bsc.setCapabilitySupport(Capability.CRITERIA_IN_SUBQUERY, true);
helpPlan(sql, tm, new String[] {"SELECT g_0.e1 FROM pm2.g2 AS g_0 WHERE g_0.e1 IN /*+ NO_UNNEST */ (SELECT g_1.e1 FROM pm1.g1 AS g_1)"}, new DefaultCapabilitiesFinder(bsc), ComparisonMode.EXACT_COMMAND_STRING);
//TODO: it should work either way, but for now we expect the subquery to conform to the parent
sql = "select pm1.g1.e1 from pm1.g1 where e2 in (select e2 from pm2.g2)";
}
@Test public void testConformedSubquery1() throws Exception {
String sql = "select pm2.g3.e1 from pm2.g3 where e1 in /*+ no_unnest */ (select e1 from pm1.g1)";
BasicSourceCapabilities bsc = getTypicalCapabilities();
bsc.setCapabilitySupport(Capability.CRITERIA_IN_SUBQUERY, true);
helpPlan(sql, tm, new String[] {"SELECT g_0.e1 FROM pm2.g3 AS g_0 WHERE g_0.e1 IN /*+ NO_UNNEST */ (SELECT g_1.e1 FROM pm1.g1 AS g_1)"}, new DefaultCapabilitiesFinder(bsc), ComparisonMode.EXACT_COMMAND_STRING);
}
}