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* Lesser General Public License for more details.
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package org.teiid.query.optimizer.relational.rules;
import static org.junit.Assert.*;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.junit.Test;
import org.teiid.query.analysis.AnalysisRecord;
import org.teiid.query.metadata.QueryMetadataInterface;
import org.teiid.query.metadata.TempMetadataAdapter;
import org.teiid.query.metadata.TempMetadataStore;
import org.teiid.query.optimizer.TestOptimizer;
import org.teiid.query.optimizer.capabilities.DefaultCapabilitiesFinder;
import org.teiid.query.optimizer.relational.RelationalPlanner;
import org.teiid.query.optimizer.relational.RuleStack;
import org.teiid.query.optimizer.relational.plantree.NodeConstants;
import org.teiid.query.optimizer.relational.plantree.NodeEditor;
import org.teiid.query.optimizer.relational.plantree.NodeFactory;
import org.teiid.query.optimizer.relational.plantree.PlanNode;
import org.teiid.query.optimizer.relational.plantree.NodeConstants.Info;
import org.teiid.query.parser.QueryParser;
import org.teiid.query.sql.lang.Command;
import org.teiid.query.sql.symbol.ElementSymbol;
import org.teiid.query.sql.symbol.SingleElementSymbol;
import org.teiid.query.sql.util.SymbolMap;
import org.teiid.query.unittest.FakeMetadataFactory;
import org.teiid.query.util.CommandContext;
public class TestRulePushSelectCriteria {
@Test public void testElementsInCritieria() throws Exception {
String criteria = "e1 = '1' OR ((e1 = '2' OR e1 = '4') AND e2 = 3)"; //$NON-NLS-1$
Set<ElementSymbol> expected = new HashSet<ElementSymbol>(Arrays.asList(new ElementSymbol("e1"))); //$NON-NLS-1$
assertEquals(expected, RulePushSelectCriteria.getElementsIncriteria(QueryParser.getQueryParser().parseCriteria(criteria)));
}
@Test public void testElementsInCritieria1() throws Exception {
String criteria = "e1 = '1' and ((e1 = '2' OR e1 = '4') AND e2 = 3) or e2 is null"; //$NON-NLS-1$
Set<ElementSymbol> expected = new HashSet<ElementSymbol>(Arrays.asList(new ElementSymbol("e2"))); //$NON-NLS-1$
assertEquals(expected, RulePushSelectCriteria.getElementsIncriteria(QueryParser.getQueryParser().parseCriteria(criteria)));
}
@Test public void testPushAcrossFrameWithAccessNode() throws Exception {
QueryMetadataInterface metadata = new TempMetadataAdapter(FakeMetadataFactory.example1Cached(), new TempMetadataStore());
Command command = TestOptimizer.helpGetCommand("select * from (select * from pm1.g1 union select * from pm1.g2) x where e1 = 1", metadata, null); //$NON-NLS-1$
Command subCommand = TestOptimizer.helpGetCommand("select * from pm1.g1 union select * from pm1.g2", metadata, null); //$NON-NLS-1$
RelationalPlanner p = new RelationalPlanner();
CommandContext cc = new CommandContext();
p.initialize(command, null, metadata, null, null, cc);
PlanNode root = p.generatePlan(command);
PlanNode child = p.generatePlan(subCommand);
PlanNode sourceNode = NodeEditor.findNodePreOrder(root, NodeConstants.Types.SOURCE);
sourceNode.addFirstChild(child);
sourceNode.setProperty(NodeConstants.Info.SYMBOL_MAP, SymbolMap.createSymbolMap(sourceNode.getGroups().iterator().next(), (List<SingleElementSymbol>)child.getFirstChild().getProperty(Info.PROJECT_COLS), metadata));
//add a dummy access node
PlanNode accessNode = NodeFactory.getNewNode(NodeConstants.Types.ACCESS);
accessNode.addGroups(child.getFirstChild().getGroups());
child.getFirstChild().addAsParent(accessNode);
new RulePushSelectCriteria().execute(root, metadata, new DefaultCapabilitiesFinder(), new RuleStack(), AnalysisRecord.createNonRecordingRecord(), cc);
// the select node should still be above the access node
accessNode = NodeEditor.findNodePreOrder(root, NodeConstants.Types.ACCESS);
assertEquals(NodeConstants.Types.SELECT, accessNode.getParent().getType());
assertNull(NodeEditor.findNodePreOrder(accessNode, NodeConstants.Types.SELECT));
}
}