/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* 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,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* 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
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.query.optimizer.relational;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.teiid.api.exception.query.QueryMetadataException;
import org.teiid.api.exception.query.QueryPlannerException;
import org.teiid.core.CoreConstants;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.id.IDGenerator;
import org.teiid.core.id.IntegerID;
import org.teiid.core.id.IntegerIDFactory;
import org.teiid.core.util.Assertion;
import org.teiid.query.QueryPlugin;
import org.teiid.query.analysis.AnalysisRecord;
import org.teiid.query.metadata.QueryMetadataInterface;
import org.teiid.query.metadata.TempMetadataID;
import org.teiid.query.optimizer.capabilities.CapabilitiesFinder;
import org.teiid.query.optimizer.capabilities.SourceCapabilities;
import org.teiid.query.optimizer.capabilities.SourceCapabilities.Capability;
import org.teiid.query.optimizer.relational.plantree.NodeConstants;
import org.teiid.query.optimizer.relational.plantree.PlanNode;
import org.teiid.query.optimizer.relational.plantree.NodeConstants.Info;
import org.teiid.query.optimizer.relational.rules.CapabilitiesUtil;
import org.teiid.query.optimizer.relational.rules.FrameUtil;
import org.teiid.query.processor.ProcessorPlan;
import org.teiid.query.processor.relational.AccessNode;
import org.teiid.query.processor.relational.ArrayTableNode;
import org.teiid.query.processor.relational.DependentAccessNode;
import org.teiid.query.processor.relational.DependentProcedureAccessNode;
import org.teiid.query.processor.relational.DependentProcedureExecutionNode;
import org.teiid.query.processor.relational.GroupingNode;
import org.teiid.query.processor.relational.InsertPlanExecutionNode;
import org.teiid.query.processor.relational.JoinNode;
import org.teiid.query.processor.relational.LimitNode;
import org.teiid.query.processor.relational.MergeJoinStrategy;
import org.teiid.query.processor.relational.NestedLoopJoinStrategy;
import org.teiid.query.processor.relational.NestedTableJoinStrategy;
import org.teiid.query.processor.relational.NullNode;
import org.teiid.query.processor.relational.EnhancedSortMergeJoinStrategy;
import org.teiid.query.processor.relational.PlanExecutionNode;
import org.teiid.query.processor.relational.ProjectIntoNode;
import org.teiid.query.processor.relational.ProjectNode;
import org.teiid.query.processor.relational.RelationalNode;
import org.teiid.query.processor.relational.RelationalPlan;
import org.teiid.query.processor.relational.SelectNode;
import org.teiid.query.processor.relational.SortNode;
import org.teiid.query.processor.relational.TextTableNode;
import org.teiid.query.processor.relational.UnionAllNode;
import org.teiid.query.processor.relational.XMLTableNode;
import org.teiid.query.processor.relational.JoinNode.JoinStrategyType;
import org.teiid.query.processor.relational.MergeJoinStrategy.SortOption;
import org.teiid.query.processor.relational.SortUtility.Mode;
import org.teiid.query.resolver.util.ResolverUtil;
import org.teiid.query.sql.lang.ArrayTable;
import org.teiid.query.sql.lang.Command;
import org.teiid.query.sql.lang.Criteria;
import org.teiid.query.sql.lang.Insert;
import org.teiid.query.sql.lang.JoinType;
import org.teiid.query.sql.lang.OrderBy;
import org.teiid.query.sql.lang.Query;
import org.teiid.query.sql.lang.QueryCommand;
import org.teiid.query.sql.lang.StoredProcedure;
import org.teiid.query.sql.lang.TableFunctionReference;
import org.teiid.query.sql.lang.TextTable;
import org.teiid.query.sql.lang.XMLTable;
import org.teiid.query.sql.lang.SetQuery.Operation;
import org.teiid.query.sql.lang.XMLTable.XMLColumn;
import org.teiid.query.sql.symbol.ElementSymbol;
import org.teiid.query.sql.symbol.Expression;
import org.teiid.query.sql.symbol.GroupSymbol;
import org.teiid.query.sql.util.SymbolMap;
import org.teiid.query.sql.visitor.EvaluatableVisitor;
import org.teiid.query.sql.visitor.GroupCollectorVisitor;
public class PlanToProcessConverter {
protected QueryMetadataInterface metadata;
private IDGenerator idGenerator;
private AnalysisRecord analysisRecord;
private CapabilitiesFinder capFinder;
public PlanToProcessConverter(QueryMetadataInterface metadata, IDGenerator idGenerator, AnalysisRecord analysisRecord, CapabilitiesFinder capFinder) {
this.metadata = metadata;
this.idGenerator = idGenerator;
this.analysisRecord = analysisRecord;
this.capFinder = capFinder;
}
public RelationalPlan convert(PlanNode planNode)
throws QueryPlannerException, TeiidComponentException {
boolean debug = analysisRecord.recordDebug();
if(debug) {
analysisRecord.println("\n============================================================================"); //$NON-NLS-1$
analysisRecord.println("CONVERTING PLAN TREE TO PROCESS TREE"); //$NON-NLS-1$
}
// Convert plan tree nodes into process tree nodes
RelationalNode processNode = convertPlan(planNode);
if(debug) {
analysisRecord.println("\nPROCESS PLAN = \n" + processNode); //$NON-NLS-1$
analysisRecord.println("============================================================================"); //$NON-NLS-1$
}
RelationalPlan processPlan = new RelationalPlan(processNode);
return processPlan;
}
private RelationalNode convertPlan(PlanNode planNode)
throws QueryPlannerException, TeiidComponentException {
// Convert current node in planTree
RelationalNode convertedNode = convertNode(planNode);
if(convertedNode == null) {
Assertion.assertTrue(planNode.getChildCount() == 1);
return convertPlan(planNode.getFirstChild());
}
RelationalNode nextParent = convertedNode;
// convertedNode may be the head of 1 or more nodes - go to end of chain
while(nextParent.getChildren()[0] != null) {
nextParent = nextParent.getChildren()[0];
}
// Call convertPlan recursively on children
for (PlanNode childNode : planNode.getChildren()) {
RelationalNode child = convertPlan(childNode);
if (planNode.getType() == NodeConstants.Types.SET_OP && childNode.getType() == NodeConstants.Types.SET_OP && childNode.hasBooleanProperty(Info.USE_ALL)) {
for (RelationalNode grandChild : child.getChildren()) {
if (grandChild != null) {
nextParent.addChild(grandChild);
}
}
} else {
nextParent.addChild(child);
}
}
// Return root of tree for top node
return convertedNode;
}
protected int getID() {
IntegerIDFactory intFactory = (IntegerIDFactory) idGenerator.getDefaultFactory();
return ((IntegerID) intFactory.create()).getValue();
}
protected RelationalNode convertNode(PlanNode node)
throws QueryPlannerException, TeiidComponentException {
RelationalNode processNode = null;
switch(node.getType()) {
case NodeConstants.Types.PROJECT:
GroupSymbol intoGroup = (GroupSymbol) node.getProperty(NodeConstants.Info.INTO_GROUP);
if(intoGroup != null) {
try {
Insert insert = (Insert)node.getFirstChild().getProperty(Info.VIRTUAL_COMMAND);
List<ElementSymbol> allIntoElements = insert.getVariables();
Object groupID = intoGroup.getMetadataID();
Object modelID = metadata.getModelID(groupID);
String modelName = metadata.getFullName(modelID);
if (metadata.isVirtualGroup(groupID)) {
InsertPlanExecutionNode ipen = new InsertPlanExecutionNode(getID(), metadata);
ipen.setProcessorPlan((ProcessorPlan)node.getFirstChild().getProperty(Info.PROCESSOR_PLAN));
ipen.setReferences(insert.getValues());
processNode = ipen;
} else {
ProjectIntoNode pinode = new ProjectIntoNode(getID());
pinode.setIntoGroup(intoGroup);
pinode.setIntoElements(allIntoElements);
pinode.setModelName(modelName);
processNode = pinode;
SourceCapabilities caps = capFinder.findCapabilities(modelName);
if (caps.supportsCapability(Capability.INSERT_WITH_ITERATOR)) {
pinode.setMode(org.teiid.query.processor.relational.ProjectIntoNode.Mode.ITERATOR);
} else if (caps.supportsCapability(Capability.BULK_UPDATE)) {
pinode.setMode(org.teiid.query.processor.relational.ProjectIntoNode.Mode.BULK);
} else if (caps.supportsCapability(Capability.BATCHED_UPDATES)) {
pinode.setMode(org.teiid.query.processor.relational.ProjectIntoNode.Mode.BATCH);
} else {
pinode.setMode(org.teiid.query.processor.relational.ProjectIntoNode.Mode.SINGLE);
}
}
} catch(QueryMetadataException e) {
throw new TeiidComponentException(e);
}
} else {
List symbols = (List) node.getProperty(NodeConstants.Info.PROJECT_COLS);
ProjectNode pnode = new ProjectNode(getID());
pnode.setSelectSymbols(symbols);
processNode = pnode;
}
break;
case NodeConstants.Types.JOIN:
JoinType jtype = (JoinType) node.getProperty(NodeConstants.Info.JOIN_TYPE);
JoinStrategyType stype = (JoinStrategyType) node.getProperty(NodeConstants.Info.JOIN_STRATEGY);
JoinNode jnode = new JoinNode(getID());
jnode.setJoinType(jtype);
jnode.setLeftDistinct(node.hasBooleanProperty(NodeConstants.Info.IS_LEFT_DISTINCT));
jnode.setRightDistinct(node.hasBooleanProperty(NodeConstants.Info.IS_RIGHT_DISTINCT));
List joinCrits = (List) node.getProperty(NodeConstants.Info.JOIN_CRITERIA);
String depValueSource = (String) node.getProperty(NodeConstants.Info.DEPENDENT_VALUE_SOURCE);
SortOption leftSort = (SortOption)node.getProperty(NodeConstants.Info.SORT_LEFT);
if(stype == JoinStrategyType.MERGE || stype == JoinStrategyType.ENHANCED_SORT) {
MergeJoinStrategy mjStrategy = null;
if (stype.equals(JoinStrategyType.ENHANCED_SORT)) {
mjStrategy = new EnhancedSortMergeJoinStrategy(leftSort, (SortOption)node.getProperty(NodeConstants.Info.SORT_RIGHT));
} else {
mjStrategy = new MergeJoinStrategy(leftSort, (SortOption)node.getProperty(NodeConstants.Info.SORT_RIGHT), false);
}
jnode.setJoinStrategy(mjStrategy);
List leftExpressions = (List) node.getProperty(NodeConstants.Info.LEFT_EXPRESSIONS);
List rightExpressions = (List) node.getProperty(NodeConstants.Info.RIGHT_EXPRESSIONS);
jnode.setJoinExpressions(leftExpressions, rightExpressions);
joinCrits = (List) node.getProperty(NodeConstants.Info.NON_EQUI_JOIN_CRITERIA);
} else if (stype == JoinStrategyType.NESTED_TABLE) {
NestedTableJoinStrategy ntjStrategy = new NestedTableJoinStrategy();
jnode.setJoinStrategy(ntjStrategy);
SymbolMap references = (SymbolMap)FrameUtil.findJoinSourceNode(node.getFirstChild()).getProperty(NodeConstants.Info.CORRELATED_REFERENCES);
ntjStrategy.setLeftMap(references);
references = (SymbolMap)FrameUtil.findJoinSourceNode(node.getLastChild()).getProperty(NodeConstants.Info.CORRELATED_REFERENCES);
ntjStrategy.setRightMap(references);
} else {
NestedLoopJoinStrategy nljStrategy = new NestedLoopJoinStrategy();
jnode.setJoinStrategy(nljStrategy);
}
Criteria joinCrit = Criteria.combineCriteria(joinCrits);
jnode.setJoinCriteria(joinCrit);
processNode = jnode;
jnode.setDependentValueSource(depValueSource);
break;
case NodeConstants.Types.ACCESS:
ProcessorPlan plan = (ProcessorPlan) node.getProperty(NodeConstants.Info.PROCESSOR_PLAN);
if(plan != null) {
PlanExecutionNode peNode = null;
Criteria crit = (Criteria)node.getProperty(NodeConstants.Info.PROCEDURE_CRITERIA);
if (crit != null) {
List references = (List)node.getProperty(NodeConstants.Info.PROCEDURE_INPUTS);
List defaults = (List)node.getProperty(NodeConstants.Info.PROCEDURE_DEFAULTS);
peNode = new DependentProcedureExecutionNode(getID(), crit, references, defaults);
} else {
peNode = new PlanExecutionNode(getID());
}
peNode.setProcessorPlan(plan);
processNode = peNode;
} else {
AccessNode aNode = null;
Command command = (Command) node.getProperty(NodeConstants.Info.ATOMIC_REQUEST);
Object modelID = node.getProperty(NodeConstants.Info.MODEL_ID);
if(node.hasBooleanProperty(NodeConstants.Info.IS_DEPENDENT_SET)) {
if (command instanceof StoredProcedure) {
List references = (List)node.getProperty(NodeConstants.Info.PROCEDURE_INPUTS);
List defaults = (List)node.getProperty(NodeConstants.Info.PROCEDURE_DEFAULTS);
Criteria crit = (Criteria)node.getProperty(NodeConstants.Info.PROCEDURE_CRITERIA);
DependentProcedureAccessNode depAccessNode = new DependentProcedureAccessNode(getID(), crit, references, defaults);
processNode = depAccessNode;
aNode = depAccessNode;
} else {
//create dependent access node
DependentAccessNode depAccessNode = new DependentAccessNode(getID());
if(modelID != null){
depAccessNode.setMaxSetSize(CapabilitiesUtil.getMaxInCriteriaSize(modelID, metadata, capFinder));
depAccessNode.setMaxPredicates(CapabilitiesUtil.getMaxDependentPredicates(modelID, metadata, capFinder));
}
processNode = depAccessNode;
aNode = depAccessNode;
}
aNode.setShouldEvaluateExpressions(true);
} else {
// create access node
aNode = new AccessNode(getID());
processNode = aNode;
//-- special handling for temp tables. currently they cannot perform projection
try {
if (command instanceof Query) {
processNode = correctProjectionInternalTables(node, aNode);
}
} catch (QueryMetadataException err) {
throw new TeiidComponentException(err);
}
aNode.setShouldEvaluateExpressions(EvaluatableVisitor.needsProcessingEvaluation(command));
}
if (command instanceof QueryCommand) {
try {
command = (Command)command.clone();
boolean aliasGroups = modelID != null && CapabilitiesUtil.supportsGroupAliases(modelID, metadata, capFinder);
boolean aliasColumns = modelID != null && CapabilitiesUtil.supports(Capability.QUERY_SELECT_EXPRESSION, modelID, metadata, capFinder);
command.acceptVisitor(new AliasGenerator(aliasGroups, !aliasColumns));
} catch (QueryMetadataException err) {
throw new TeiidComponentException(err);
}
}
aNode.setCommand(command);
aNode.setModelName(getRoutingName(node));
}
break;
case NodeConstants.Types.SELECT:
Criteria crit = (Criteria) node.getProperty(NodeConstants.Info.SELECT_CRITERIA);
SelectNode selnode = new SelectNode(getID());
selnode.setCriteria(crit);
processNode = selnode;
break;
case NodeConstants.Types.SORT:
case NodeConstants.Types.DUP_REMOVE:
SortNode sortNode = new SortNode(getID());
OrderBy orderBy = (OrderBy) node.getProperty(NodeConstants.Info.SORT_ORDER);
if (orderBy != null) {
sortNode.setSortElements(orderBy.getOrderByItems());
}
if (node.getType() == NodeConstants.Types.DUP_REMOVE) {
sortNode.setMode(Mode.DUP_REMOVE);
} else if (node.hasBooleanProperty(NodeConstants.Info.IS_DUP_REMOVAL)) {
sortNode.setMode(Mode.DUP_REMOVE_SORT);
}
processNode = sortNode;
break;
case NodeConstants.Types.GROUP:
GroupingNode gnode = new GroupingNode(getID());
gnode.setGroupingElements( (List) node.getProperty(NodeConstants.Info.GROUP_COLS) );
gnode.setRemoveDuplicates(node.hasBooleanProperty(NodeConstants.Info.IS_DUP_REMOVAL));
processNode = gnode;
break;
case NodeConstants.Types.SOURCE:
SymbolMap symbolMap = (SymbolMap) node.getProperty(NodeConstants.Info.SYMBOL_MAP);
if(symbolMap != null) {
PlanNode child = node.getLastChild();
if (node.getParent().getType() != NodeConstants.Types.PROJECT || node.getParent().getProperty(NodeConstants.Info.INTO_GROUP) == null) {
if (child.getType() == NodeConstants.Types.PROJECT) {
//update the project cols based upon the original output
child.setProperty(NodeConstants.Info.PROJECT_COLS, child.getProperty(NodeConstants.Info.OUTPUT_COLS));
}
child.setProperty(NodeConstants.Info.OUTPUT_COLS, node.getProperty(NodeConstants.Info.OUTPUT_COLS));
}
}
Object source = node.getProperty(NodeConstants.Info.TABLE_FUNCTION);
if (source instanceof XMLTable) {
XMLTable xt = (XMLTable)source;
XMLTableNode xtn = new XMLTableNode(getID());
//we handle the projection filtering once here rather than repeating the
//path analysis on a per plan basis
updateGroupName(node, xt);
Map elementMap = RelationalNode.createLookupMap(xt.getProjectedSymbols());
List cols = (List) node.getProperty(NodeConstants.Info.OUTPUT_COLS);
int[] projectionIndexes = RelationalNode.getProjectionIndexes(elementMap, cols);
ArrayList<XMLColumn> filteredColumns = new ArrayList<XMLColumn>(projectionIndexes.length);
for (int col : projectionIndexes) {
filteredColumns.add(xt.getColumns().get(col));
}
xt.getXQueryExpression().useDocumentProjection(filteredColumns, analysisRecord);
xtn.setProjectedColumns(filteredColumns);
xtn.setTable(xt);
processNode = xtn;
break;
}
if (source instanceof TextTable) {
TextTableNode ttn = new TextTableNode(getID());
TextTable tt = (TextTable)source;
updateGroupName(node, tt);
ttn.setTable(tt);
processNode = ttn;
break;
}
if (source instanceof ArrayTable) {
ArrayTableNode atn = new ArrayTableNode(getID());
ArrayTable at = (ArrayTable)source;
updateGroupName(node, at);
atn.setTable(at);
processNode = atn;
break;
}
return null;
case NodeConstants.Types.SET_OP:
Operation setOp = (Operation) node.getProperty(NodeConstants.Info.SET_OPERATION);
boolean useAll = ((Boolean) node.getProperty(NodeConstants.Info.USE_ALL)).booleanValue();
if(setOp == Operation.UNION) {
RelationalNode unionAllNode = new UnionAllNode(getID());
if(useAll) {
processNode = unionAllNode;
} else {
SortNode sNode = new SortNode(getID());
boolean onlyDupRemoval = node.hasBooleanProperty(NodeConstants.Info.IS_DUP_REMOVAL);
sNode.setMode(onlyDupRemoval?Mode.DUP_REMOVE:Mode.DUP_REMOVE_SORT);
processNode = sNode;
unionAllNode.setElements( (List) node.getProperty(NodeConstants.Info.OUTPUT_COLS) );
processNode.addChild(unionAllNode);
}
} else {
JoinNode joinAsSet = new JoinNode(getID());
joinAsSet.setJoinStrategy(new MergeJoinStrategy(SortOption.SORT_DISTINCT, SortOption.SORT_DISTINCT, true));
List leftExpressions = (List) node.getFirstChild().getProperty(NodeConstants.Info.OUTPUT_COLS);
List rightExpressions = (List) node.getLastChild().getProperty(NodeConstants.Info.OUTPUT_COLS);
joinAsSet.setJoinType(setOp == Operation.EXCEPT ? JoinType.JOIN_ANTI_SEMI : JoinType.JOIN_SEMI);
joinAsSet.setJoinExpressions(leftExpressions, rightExpressions);
processNode = joinAsSet;
}
break;
case NodeConstants.Types.TUPLE_LIMIT:
Expression rowLimit = (Expression)node.getProperty(NodeConstants.Info.MAX_TUPLE_LIMIT);
Expression offset = (Expression)node.getProperty(NodeConstants.Info.OFFSET_TUPLE_COUNT);
LimitNode ln = new LimitNode(getID(), rowLimit, offset);
ln.setImplicit(node.hasBooleanProperty(Info.IS_IMPLICIT_LIMIT));
processNode = ln;
break;
case NodeConstants.Types.NULL:
processNode = new NullNode(getID());
break;
default:
throw new QueryPlannerException(QueryPlugin.Util.getString("ERR.015.004.0007", NodeConstants.getNodeTypeString(node.getType()))); //$NON-NLS-1$
}
if(processNode != null) {
processNode = prepareToAdd(node, processNode);
}
return processNode;
}
private void updateGroupName(PlanNode node, TableFunctionReference tt) {
String groupName = node.getGroups().iterator().next().getName();
tt.getGroupSymbol().setName(groupName);
for (ElementSymbol symbol : tt.getProjectedSymbols()) {
symbol.setGroupSymbol(new GroupSymbol(groupName));
}
}
private RelationalNode correctProjectionInternalTables(PlanNode node,
AccessNode aNode) throws QueryMetadataException,
TeiidComponentException {
if (node.getGroups().size() != 1) {
return aNode;
}
GroupSymbol group = node.getGroups().iterator().next();
if (!CoreConstants.SYSTEM_MODEL.equals(metadata.getFullName(metadata.getModelID(group.getMetadataID())))
&& !CoreConstants.SYSTEM_ADMIN_MODEL.equals(metadata.getFullName(metadata.getModelID(group.getMetadataID())))) {
return aNode;
}
List projectSymbols = (List) node.getProperty(NodeConstants.Info.OUTPUT_COLS);
List<ElementSymbol> acutalColumns = ResolverUtil.resolveElementsInGroup(group, metadata);
if (projectSymbols.equals(acutalColumns)) {
return aNode;
}
node.setProperty(NodeConstants.Info.OUTPUT_COLS, acutalColumns);
if (node.getParent() != null && node.getParent().getType() == NodeConstants.Types.PROJECT) {
//if the parent is already a project, just correcting the output cols is enough
return aNode;
}
ProjectNode pnode = new ProjectNode(getID());
pnode.setSelectSymbols(projectSymbols);
//if the following cast fails it means that we have a dependent temp table - that is not yet possible
aNode = (AccessNode)prepareToAdd(node, aNode);
node.setProperty(NodeConstants.Info.OUTPUT_COLS, projectSymbols);
pnode.addChild(aNode);
return pnode;
}
private RelationalNode prepareToAdd(PlanNode node,
RelationalNode processNode) {
// Set the output elements from the plan node
List cols = (List) node.getProperty(NodeConstants.Info.OUTPUT_COLS);
processNode.setElements(cols);
// Set the Cost Estimates
Number estimateNodeCardinality = (Number) node.getProperty(NodeConstants.Info.EST_CARDINALITY);
processNode.setEstimateNodeCardinality(estimateNodeCardinality);
Number estimateNodeSetSize = (Number) node.getProperty(NodeConstants.Info.EST_SET_SIZE);
processNode.setEstimateNodeSetSize(estimateNodeSetSize);
Number estimateDepAccessCardinality = (Number) node.getProperty(NodeConstants.Info.EST_DEP_CARDINALITY);
processNode.setEstimateDepAccessCardinality(estimateDepAccessCardinality);
Number estimateDepJoinCost = (Number) node.getProperty(NodeConstants.Info.EST_DEP_JOIN_COST);
processNode.setEstimateDepJoinCost(estimateDepJoinCost);
Number estimateJoinCost = (Number) node.getProperty(NodeConstants.Info.EST_JOIN_COST);
processNode.setEstimateJoinCost(estimateJoinCost);
return processNode;
}
private String getRoutingName(PlanNode node)
throws QueryPlannerException, TeiidComponentException {
// Look up connector binding name
try {
Object modelID = node.getProperty(NodeConstants.Info.MODEL_ID);
if(modelID == null || modelID instanceof TempMetadataID) {
Command command = (Command) node.getProperty(NodeConstants.Info.ATOMIC_REQUEST);
if(command instanceof StoredProcedure){
modelID = ((StoredProcedure)command).getModelID();
}else{
Collection<GroupSymbol> groups = GroupCollectorVisitor.getGroups(command, true);
GroupSymbol group = groups.iterator().next();
modelID = metadata.getModelID(group.getMetadataID());
}
}
String cbName = metadata.getFullName(modelID);
return cbName;
} catch(QueryMetadataException e) {
throw new QueryPlannerException(e, QueryPlugin.Util.getString("ERR.015.004.0009")); //$NON-NLS-1$
}
}
}