use of org.teiid.query.sql.lang.ObjectTable.ObjectColumn in project teiid by teiid.
the class ObjectTableNode method processRow.
private List<?> processRow() throws ExpressionEvaluationException, TeiidComponentException, TeiidProcessingException {
List<Object> tuple = new ArrayList<Object>(projectedColumns.size());
this.scriptContext.setAttribute(TEIID_ROW, this.item, ScriptContext.ENGINE_SCOPE);
this.scriptContext.setAttribute(TEIID_ROW_NUMBER, this.rowCount, ScriptContext.ENGINE_SCOPE);
for (ObjectColumn proColumn : projectedColumns) {
Object value = evalScript(proColumn.getCompiledScript(), proColumn.getPath());
if (value == null) {
if (proColumn.getDefaultExpression() != null) {
tuple.add(getEvaluator(Collections.emptyMap()).evaluate(proColumn.getDefaultExpression(), null));
} else {
tuple.add(null);
}
continue;
}
value = FunctionDescriptor.importValue(value, proColumn.getSymbol().getType());
tuple.add(value);
}
item = null;
return tuple;
}
use of org.teiid.query.sql.lang.ObjectTable.ObjectColumn in project teiid by teiid.
the class ValidationVisitor method visit.
@Override
public void visit(ObjectTable obj) {
List<DerivedColumn> passing = obj.getPassing();
TreeSet<String> names = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);
for (DerivedColumn dc : passing) {
if (dc.getAlias() == null) {
// $NON-NLS-1$
handleValidationError(QueryPlugin.Util.getString("ValidationVisitor.context_item_not_allowed"), obj);
} else if (!names.add(dc.getAlias())) {
// $NON-NLS-1$
handleValidationError(QueryPlugin.Util.getString("ValidationVisitor.duplicate_passing", dc.getAlias()), obj);
}
}
Compilable scriptCompiler = null;
try {
ScriptEngine engine = this.getMetadata().getScriptEngine(obj.getScriptingLanguage());
obj.setScriptEngine(engine);
if (engine instanceof Compilable) {
scriptCompiler = (Compilable) engine;
engine.put(ScriptEngine.FILENAME, SQLConstants.NonReserved.OBJECTTABLE);
obj.setCompiledScript(scriptCompiler.compile(obj.getRowScript()));
}
} catch (TeiidProcessingException e) {
handleValidationError(e.getMessage(), obj);
} catch (ScriptException e) {
// $NON-NLS
handleValidationError(QueryPlugin.Util.gs(QueryPlugin.Event.TEIID31110, obj.getRowScript(), e.getMessage()), obj);
}
for (ObjectColumn xc : obj.getColumns()) {
if (scriptCompiler != null) {
try {
xc.setCompiledScript(scriptCompiler.compile(xc.getPath()));
} catch (ScriptException e) {
// $NON-NLS
handleValidationError(QueryPlugin.Util.gs(QueryPlugin.Event.TEIID31110, xc.getPath(), e.getMessage()), obj);
}
}
if (xc.getDefaultExpression() != null && !EvaluatableVisitor.isFullyEvaluatable(xc.getDefaultExpression(), false)) {
// $NON-NLS-1$
handleValidationError(QueryPlugin.Util.getString("ValidationVisitor.invalid_default", xc.getDefaultExpression()), obj);
}
}
}
use of org.teiid.query.sql.lang.ObjectTable.ObjectColumn in project teiid by teiid.
the class SQLStringVisitor method visit.
@Override
public void visit(ObjectTable obj) {
addHintComment(obj);
// $NON-NLS-1$
append("OBJECTTABLE(");
if (obj.getScriptingLanguage() != null) {
append(LANGUAGE);
append(SPACE);
visitNode(new Constant(obj.getScriptingLanguage()));
append(SPACE);
}
visitNode(new Constant(obj.getRowScript()));
if (!obj.getPassing().isEmpty()) {
append(SPACE);
append(NonReserved.PASSING);
append(SPACE);
registerNodes(obj.getPassing(), 0);
}
append(SPACE);
append(NonReserved.COLUMNS);
for (Iterator<ObjectColumn> cols = obj.getColumns().iterator(); cols.hasNext(); ) {
ObjectColumn col = cols.next();
append(SPACE);
outputDisplayName(col.getName());
append(SPACE);
append(col.getType());
append(SPACE);
visitNode(new Constant(col.getPath()));
if (col.getDefaultExpression() != null) {
append(SPACE);
append(DEFAULT);
append(SPACE);
visitNode(col.getDefaultExpression());
}
if (cols.hasNext()) {
// $NON-NLS-1$
append(",");
}
}
// $NON-NLS-1$
append(")");
append(SPACE);
append(AS);
append(SPACE);
outputDisplayName(obj.getName());
}
use of org.teiid.query.sql.lang.ObjectTable.ObjectColumn in project teiid by teiid.
the class PlanToProcessConverter method convertNode.
protected RelationalNode convertNode(PlanNode node) throws TeiidComponentException, TeiidProcessingException {
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) && !metadata.isTemporaryTable(groupID)) {
InsertPlanExecutionNode ipen = new InsertPlanExecutionNode(getID(), metadata);
ProcessorPlan plan = (ProcessorPlan) node.getFirstChild().getProperty(Info.PROCESSOR_PLAN);
Assertion.isNotNull(plan);
ipen.setProcessorPlan(plan);
ipen.setReferences(insert.getValues());
processNode = ipen;
} else {
ProjectIntoNode pinode = new ProjectIntoNode(getID());
pinode.setIntoGroup(intoGroup);
pinode.setIntoElements(allIntoElements);
pinode.setModelName(modelName);
pinode.setConstraint((Criteria) node.getProperty(Info.CONSTRAINT));
pinode.setSourceHint((SourceHint) node.getProperty(Info.SOURCE_HINT));
if (node.hasBooleanProperty(Info.UPSERT)) {
pinode.setUpsert(true);
}
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.BATCHED_UPDATES)) {
pinode.setMode(org.teiid.query.processor.relational.ProjectIntoNode.Mode.BATCH);
} else {
pinode.setMode(org.teiid.query.processor.relational.ProjectIntoNode.Mode.SINGLE);
}
pinode.setTransactionSupport((TransactionSupport) caps.getSourceProperty(Capability.TRANSACTION_SUPPORT));
}
} catch (QueryMetadataException e) {
throw new TeiidComponentException(QueryPlugin.Event.TEIID30247, e);
}
} else {
List<Expression> symbols = (List) node.getProperty(NodeConstants.Info.PROJECT_COLS);
ProjectNode pnode = new ProjectNode(getID());
pnode.setSelectSymbols(symbols);
processNode = pnode;
if (node.hasBooleanProperty(Info.HAS_WINDOW_FUNCTIONS)) {
WindowFunctionProjectNode wfpn = new WindowFunctionProjectNode(getID());
// with partial projection the window function may already be pushed, we'll check for that here
ArrayList<Expression> filtered = new ArrayList<Expression>();
List<Expression> childSymbols = (List) node.getFirstChild().getProperty(NodeConstants.Info.OUTPUT_COLS);
for (Expression ex : symbols) {
ex = SymbolMap.getExpression(ex);
if (childSymbols.contains(ex)) {
continue;
}
filtered.add(ex);
}
Set<WindowFunction> windowFunctions = RuleAssignOutputElements.getWindowFunctions(filtered);
if (!windowFunctions.isEmpty()) {
// TODO: check for selecting all window functions
List<Expression> outputElements = new ArrayList<Expression>(windowFunctions);
// collect the other projected expressions
for (Expression singleElementSymbol : (List<Expression>) node.getFirstChild().getProperty(Info.OUTPUT_COLS)) {
outputElements.add(singleElementSymbol);
}
wfpn.setElements(outputElements);
wfpn.init();
pnode.addChild(wfpn);
for (WindowFunction wf : windowFunctions) {
validateAggregateFunctionEvaluation(wf.getFunction());
}
}
}
}
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)) {
EnhancedSortMergeJoinStrategy esmjStrategy = new EnhancedSortMergeJoinStrategy(leftSort, (SortOption) node.getProperty(NodeConstants.Info.SORT_RIGHT));
esmjStrategy.setSemiDep(node.hasBooleanProperty(Info.IS_SEMI_DEP));
mjStrategy = esmjStrategy;
} 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) node.getProperty(Info.RIGHT_NESTED_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 (modelID != null) {
String fullName = metadata.getFullName(modelID);
if (!capFinder.isValid(fullName)) {
// TODO: we ideally want to handle the partial resutls case here differently
// by adding a null node / and a source warning
// for now it's just as easy to say that the user needs to take steps to
// return static capabilities
SourceCapabilities caps = capFinder.findCapabilities(fullName);
Exception cause = null;
if (caps != null) {
cause = (Exception) caps.getSourceProperty(Capability.INVALID_EXCEPTION);
}
throw new QueryPlannerException(QueryPlugin.Event.TEIID30498, cause, QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30498, fullName));
}
}
EvaluatableVisitor ev = null;
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.setPushdown(CapabilitiesUtil.supports(Capability.DEPENDENT_JOIN, modelID, metadata, capFinder));
depAccessNode.setMaxSetSize(CapabilitiesUtil.getMaxInCriteriaSize(modelID, metadata, capFinder));
depAccessNode.setMaxPredicates(CapabilitiesUtil.getMaxDependentPredicates(modelID, metadata, capFinder));
depAccessNode.setUseBindings(CapabilitiesUtil.supports(Capability.DEPENDENT_JOIN_BINDINGS, modelID, metadata, capFinder));
// TODO: allow the translator to drive this property
// simplistic check of whether this query is complex to re-execute
Query query = (Query) command;
if (query.getGroupBy() != null || query.getFrom().getClauses().size() > 1 || !(query.getFrom().getClauses().get(0) instanceof UnaryFromClause) || query.getWith() != null) {
depAccessNode.setComplexQuery(true);
} else {
// check to see if there in an index on at least one of the dependent sets
Set<GroupSymbol> groups = new HashSet<GroupSymbol>(query.getFrom().getGroups());
boolean found = false;
for (Criteria crit : Criteria.separateCriteriaByAnd(query.getCriteria())) {
if (crit instanceof DependentSetCriteria) {
DependentSetCriteria dsc = (DependentSetCriteria) crit;
if (NewCalculateCostUtil.getKeyUsed(ElementCollectorVisitor.getElements(dsc.getExpression(), true), groups, metadata, null) != null) {
found = true;
break;
}
}
}
if (!found) {
depAccessNode.setComplexQuery(true);
}
}
}
processNode = depAccessNode;
aNode = depAccessNode;
}
aNode.setShouldEvaluateExpressions(true);
} else {
// create access node
aNode = new AccessNode(getID());
processNode = aNode;
}
// -- special handling for system tables. currently they cannot perform projection
try {
if (command instanceof Query) {
processNode = correctProjectionInternalTables(node, aNode);
}
} catch (QueryMetadataException err) {
throw new TeiidComponentException(QueryPlugin.Event.TEIID30248, err);
}
setRoutingName(aNode, node, command);
boolean shouldEval = false;
if (command instanceof Insert) {
Insert insert = (Insert) command;
if (insert.getQueryExpression() != null) {
insert.setQueryExpression((QueryCommand) aliasCommand(aNode, insert.getQueryExpression(), modelID));
} else {
for (int i = 0; i < insert.getValues().size(); i++) {
Expression ex = (Expression) insert.getValues().get(i);
if (!CriteriaCapabilityValidatorVisitor.canPushLanguageObject(ex, modelID, metadata, capFinder, analysisRecord)) {
// replace with an expression symbol to let the rewriter know that it should be replaced
insert.getValues().set(i, new ExpressionSymbol("x", ex));
shouldEval = true;
}
}
}
} else if (command instanceof QueryCommand) {
command = aliasCommand(aNode, command, modelID);
}
ev = EvaluatableVisitor.needsEvaluationVisitor(modelID, metadata, capFinder);
if (!shouldEval && modelID != null) {
// do a capabilities sensitive check for needs eval
String modelName = metadata.getFullName(modelID);
SourceCapabilities caps = capFinder.findCapabilities(modelName);
final CriteriaCapabilityValidatorVisitor capVisitor = new CriteriaCapabilityValidatorVisitor(modelID, metadata, capFinder, caps);
capVisitor.setCheckEvaluation(false);
DeepPreOrderNavigator nav = new DeepPreOrderNavigator(ev) {
protected void visitNode(org.teiid.query.sql.LanguageObject obj) {
if (capVisitor.isValid() && obj instanceof Expression) {
obj.acceptVisitor(capVisitor);
}
super.visitNode(obj);
}
};
command.acceptVisitor(nav);
if (!capVisitor.isValid()) {
// there's a non-supported construct pushed, we should eval
ev.evaluationNotPossible(EvaluationLevel.PROCESSING);
}
} else {
DeepPreOrderNavigator.doVisit(command, ev);
}
aNode.setShouldEvaluateExpressions(ev.requiresEvaluation(EvaluationLevel.PROCESSING) || shouldEval);
aNode.setCommand(command);
if (modelID != null) {
String fullName = metadata.getFullName(modelID);
SourceCapabilities caps = capFinder.findCapabilities(fullName);
aNode.setTransactionSupport((TransactionSupport) caps.getSourceProperty(Capability.TRANSACTION_SUPPORT));
}
Map<GroupSymbol, PlanNode> subPlans = (Map<GroupSymbol, PlanNode>) node.getProperty(Info.SUB_PLANS);
// it makes more sense to allow the multisource affect to be elevated above just access nodes
if (aNode.getModelId() != null && metadata.isMultiSource(aNode.getModelId())) {
VDBMetaData vdb = context.getVdb();
// forces a rewrite
aNode.setShouldEvaluateExpressions(true);
aNode.setElements((List) node.getProperty(NodeConstants.Info.OUTPUT_COLS));
if (node.hasBooleanProperty(Info.IS_MULTI_SOURCE)) {
Expression ex = rewriteMultiSourceCommand(aNode.getCommand());
aNode.setConnectorBindingExpression(ex);
aNode.setMultiSource(true);
} else {
String sourceName = (String) node.getProperty(Info.SOURCE_NAME);
aNode.setConnectorBindingExpression(new Constant(sourceName));
}
} else if (subPlans == null) {
if (!aNode.isShouldEvaluate()) {
aNode.minimizeProject(command);
}
// check if valid to share this with other nodes
if (ev != null && ev.getDeterminismLevel().compareTo(Determinism.INSTRUCTION_DETERMINISTIC) >= 0 && command.areResultsCachable()) {
checkForSharedSourceCommand(aNode, node);
}
}
if (subPlans != null) {
QueryCommand qc = (QueryCommand) command;
if (qc.getWith() == null) {
qc.setWith(new ArrayList<WithQueryCommand>(subPlans.size()));
}
Map<GroupSymbol, RelationalPlan> plans = new LinkedHashMap<GroupSymbol, RelationalPlan>();
for (Map.Entry<GroupSymbol, PlanNode> entry : subPlans.entrySet()) {
RelationalPlan subPlan = convert(entry.getValue());
List<ElementSymbol> elems = ResolverUtil.resolveElementsInGroup(entry.getKey(), metadata);
subPlan.setOutputElements(elems);
plans.put(entry.getKey(), subPlan);
WithQueryCommand withQueryCommand = new WithQueryCommand(entry.getKey(), elems, null);
qc.getWith().add(withQueryCommand);
}
aNode.setSubPlans(plans);
}
}
break;
case NodeConstants.Types.SELECT:
Criteria crit = (Criteria) node.getProperty(NodeConstants.Info.SELECT_CRITERIA);
if (!node.hasCollectionProperty(Info.OUTPUT_COLS)) {
// the late optimization to create a dependent join from a subquery introduces
// criteria that have no output elements set
// TODO that should be cleaner, but the logic currently expects to be run after join implementation
// and rerunning assign output elements seems excessive
node.setProperty(Info.OUTPUT_COLS, node.getFirstChild().getProperty(Info.OUTPUT_COLS));
}
SelectNode selnode = new SelectNode(getID());
selnode.setCriteria(crit);
// in case the parent was a source
selnode.setProjectedExpressions((List<Expression>) node.getProperty(NodeConstants.Info.PROJECT_COLS));
processNode = selnode;
break;
case NodeConstants.Types.SORT:
case NodeConstants.Types.DUP_REMOVE:
if (node.getType() == NodeConstants.Types.DUP_REMOVE) {
processNode = new DupRemoveNode(getID());
} else {
SortNode sortNode = new SortNode(getID());
OrderBy orderBy = (OrderBy) node.getProperty(NodeConstants.Info.SORT_ORDER);
if (orderBy != null) {
sortNode.setSortElements(orderBy.getOrderByItems());
}
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.setRollup(node.hasBooleanProperty(Info.ROLLUP));
SymbolMap groupingMap = (SymbolMap) node.getProperty(NodeConstants.Info.SYMBOL_MAP);
gnode.setOutputMapping(groupingMap);
gnode.setRemoveDuplicates(node.hasBooleanProperty(NodeConstants.Info.IS_DUP_REMOVAL));
List<Expression> gCols = (List) node.getProperty(NodeConstants.Info.GROUP_COLS);
OrderBy orderBy = (OrderBy) node.getProperty(Info.SORT_ORDER);
if (orderBy == null) {
if (gCols != null) {
LinkedHashSet<Expression> exprs = new LinkedHashSet<Expression>();
for (Expression ex : gCols) {
exprs.add(SymbolMap.getExpression(ex));
}
orderBy = new OrderBy(RuleChooseJoinStrategy.createExpressionSymbols(new ArrayList<Expression>(exprs)));
}
} else {
HashSet<Expression> seen = new HashSet<Expression>();
for (int i = 0; i < gCols.size(); i++) {
if (i < orderBy.getOrderByItems().size()) {
OrderByItem orderByItem = orderBy.getOrderByItems().get(i);
Expression ex = SymbolMap.getExpression(orderByItem.getSymbol());
if (!seen.add(ex)) {
continue;
}
if (ex instanceof ElementSymbol) {
ex = groupingMap.getMappedExpression((ElementSymbol) ex);
// $NON-NLS-1$
orderByItem.setSymbol(new ExpressionSymbol("expr", ex));
}
} else {
// $NON-NLS-1$
orderBy.addVariable(new ExpressionSymbol("expr", gCols.get(i)), OrderBy.ASC);
}
}
}
if (orderBy != null) {
gnode.setOrderBy(orderBy.getOrderByItems());
}
for (Expression ex : groupingMap != null ? groupingMap.getValues() : (List<Expression>) node.getFirstChild().getProperty(NodeConstants.Info.PROJECT_COLS)) {
if (ex instanceof AggregateSymbol) {
validateAggregateFunctionEvaluation((AggregateSymbol) ex);
}
}
processNode = gnode;
break;
case NodeConstants.Types.SOURCE:
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<Expression, Integer> 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 ObjectTable) {
ObjectTable ot = (ObjectTable) source;
ObjectTableNode otn = new ObjectTableNode(getID());
// we handle the projection filtering once here rather than repeating the
// path analysis on a per plan basis
updateGroupName(node, ot);
Map<Expression, Integer> elementMap = RelationalNode.createLookupMap(ot.getProjectedSymbols());
List<Expression> cols = (List<Expression>) node.getProperty(NodeConstants.Info.OUTPUT_COLS);
int[] projectionIndexes = RelationalNode.getProjectionIndexes(elementMap, cols);
ArrayList<ObjectColumn> filteredColumns = new ArrayList<ObjectColumn>(projectionIndexes.length);
for (int col : projectionIndexes) {
filteredColumns.add(ot.getColumns().get(col));
}
otn.setProjectedColumns(filteredColumns);
otn.setTable(ot);
processNode = otn;
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;
}
SymbolMap symbolMap = (SymbolMap) node.getProperty(NodeConstants.Info.SYMBOL_MAP);
if (symbolMap != null) {
PlanNode child = node.getLastChild();
if (child.getType() == NodeConstants.Types.PROJECT || child.getType() == NodeConstants.Types.SELECT) {
// update the project cols based upon the original output
child.setProperty(NodeConstants.Info.PROJECT_COLS, child.getProperty(NodeConstants.Info.OUTPUT_COLS));
}
if (child.getType() != NodeConstants.Types.SET_OP || child.getProperty(Info.SET_OPERATION) == Operation.UNION) {
child.setProperty(NodeConstants.Info.OUTPUT_COLS, node.getProperty(NodeConstants.Info.OUTPUT_COLS));
} else {
// else we cannot directly update the child properties as the child will get converted to a join
// create a projection instead for initialization purposes, but won't impact performance
ProjectNode pNode = new ProjectNode(getID());
pNode.setSelectSymbols((List<? extends Expression>) child.getProperty(NodeConstants.Info.OUTPUT_COLS));
return prepareToAdd(node, pNode);
}
}
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 {
boolean onlyDupRemoval = node.hasBooleanProperty(NodeConstants.Info.IS_DUP_REMOVAL);
if (onlyDupRemoval) {
processNode = new DupRemoveNode(getID());
} else {
SortNode sNode = new SortNode(getID());
sNode.setMode(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));
// If we push these sorts, we will have to enforce null order, since nulls are equal here
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.Event.TEIID30250, QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30250, NodeConstants.getNodeTypeString(node.getType())));
}
if (processNode != null) {
processNode = prepareToAdd(node, processNode);
}
return processNode;
}
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