public static List<List<Object>> getBulkRows(Insert insert, List<ElementSymbol> elements)
throws ExpressionEvaluationException, BlockedException, TeiidComponentException {
int bulkRowCount = 1;
if (isBulk(insert)) {
Constant c = (Constant) insert.getValues().get(0);
bulkRowCount = ((List<?>) c.getValue()).size();
}
List<List<Object>> tuples = new ArrayList<List<Object>>(bulkRowCount);
for (int row = 0; row < bulkRowCount; row++) {
List<Object> currentRow = new ArrayList<Object>(insert.getValues().size());
for (ElementSymbol symbol : elements) {
int index = insert.getVariables().indexOf(symbol);
Object value = null;
if (index != -1) {
if (isBulk(insert)) {
Constant multiValue = (Constant) insert.getValues().get(index);
value = ((List<?>) multiValue.getValue()).get(row);
} else {
Expression expr = (Expression) insert.getValues().get(index);
value = Evaluator.evaluate(expr);
}
}
currentRow.add(value);
}
tuples.add(currentRow);
}
return tuples;
}
public static boolean isBulk(Insert insert) {
if (insert.getValues() == null) {
return false;
}
if (!(insert.getValues().get(0) instanceof Constant)) {
return false;
}
return ((Constant) insert.getValues().get(0)).isMultiValued();
}
TempTable getOrCreateTempTable(
String tempTableID,
Command command,
BufferManager buffer,
boolean delegate,
boolean forUpdate,
CommandContext context)
throws TeiidProcessingException, BlockedException, TeiidComponentException {
TempTable tempTable = getTempTable(tempTableID, command, buffer, delegate, forUpdate, context);
if (tempTable != null) {
if (processors != null) {
TableProcessor withProcessor = processors.get(tempTableID);
if (withProcessor != null) {
buildWithTable(tempTableID, withProcessor, tempTable);
}
}
return tempTable;
}
// allow implicit temp group definition
List<ElementSymbol> columns = null;
if (command instanceof Insert) {
Insert insert = (Insert) command;
GroupSymbol group = insert.getGroup();
if (group.isImplicitTempGroupSymbol()) {
columns = insert.getVariables();
}
}
if (columns == null) {
if (processors != null) {
TableProcessor withProcessor = processors.get(tempTableID);
if (withProcessor != null) {
LogManager.logDetail(
LogConstants.CTX_DQP,
"Creating temporary table for with clause",
tempTableID); //$NON-NLS-1$
Create create = new Create();
create.setTable(new GroupSymbol(tempTableID));
create.setElementSymbolsAsColumns(withProcessor.columns);
tempTable = addTempTable(tempTableID, create, buffer, true, context);
buildWithTable(tempTableID, withProcessor, tempTable);
return tempTable;
}
}
throw new QueryProcessingException(
QueryPlugin.Event.TEIID30226,
QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30226, tempTableID));
}
LogManager.logDetail(
LogConstants.CTX_DQP, "Creating temporary table", tempTableID); // $NON-NLS-1$
Create create = new Create();
create.setTable(new GroupSymbol(tempTableID));
create.setElementSymbolsAsColumns(columns);
return addTempTable(tempTableID, create, buffer, true, context);
}
@Override
public void visit(Insert obj) {
preVisitVisitor(obj);
visitNode(obj.getGroup());
visitNodes(obj.getVariables());
visitNodes(obj.getValues());
if (deep && obj.getQueryExpression() != null) {
visitNode(obj.getQueryExpression());
}
visitNode(obj.getOption());
postVisitVisitor(obj);
}
public TupleSource registerRequest(
CommandContext context,
Command command,
String modelName,
RegisterRequestParameter parameterObject)
throws TeiidComponentException, TeiidProcessingException {
callCount++;
int batchSize = 1;
// ensure that we have the right kind of insert, and that the data for this row is valid
if (command instanceof Insert) {
Insert insert = (Insert) command;
if (isBulk(insert)) {
List batch = getBulkRows(insert, insert.getVariables());
batchSize = batch.size();
assertEquals(
"Unexpected batch on call " + callCount, expectedBatchSize, batchSize); // $NON-NLS-1$
for (int i = 0; i < batchSize; i++) {
ensureValue2((List) batch.get(i), 2, ((callCount - 1) * batchSize) + i + 1);
}
} else if (insert.getTupleSource() != null) {
TupleSource ts = insert.getTupleSource();
List tuple = null;
int i = 0;
while ((tuple = ts.nextTuple()) != null) {
ensureValue2(tuple, 2, ++i);
}
batchSize = i;
} else {
ensureValue(insert, 2, callCount);
}
} else if (command instanceof BatchedUpdateCommand) {
BatchedUpdateCommand bu = (BatchedUpdateCommand) command;
List<Command> batch = bu.getUpdateCommands();
batchSize = batch.size();
assertEquals(
"Unexpected batch on call " + callCount, expectedBatchSize, batchSize); // $NON-NLS-1$
} else {
fail("Unexpected command type"); // $NON-NLS-1$
}
if (batchSize > 1) {
return CollectionTupleSource.createUpdateCountArrayTupleSource(batchSize);
}
List counts = Arrays.asList(new Object[] {new Integer(batchSize)});
FakeTupleSource fakeTupleSource = new FakeTupleSource(null, new List[] {counts});
return fakeTupleSource;
}
/**
* Compare two Insert commands for equality. Will only evaluate to equal if they are IDENTICAL:
* group is equal, value is equal and variables are equal.
*
* @param obj Other object
* @return True if equal
*/
public boolean equals(Object obj) {
// Quick same object test
if (this == obj) {
return true;
}
// Quick fail tests
if (!(obj instanceof Insert)) {
return false;
}
Insert other = (Insert) obj;
return EquivalenceUtil.areEqual(getGroup(), other.getGroup())
&& EquivalenceUtil.areEqual(getValues(), other.getValues())
&& EquivalenceUtil.areEqual(getVariables(), other.getVariables())
&& sameOptionAndHint(other)
&& EquivalenceUtil.areEqual(getQueryExpression(), other.getQueryExpression());
}
/**
* Return a deep copy of this Insert.
*
* @return Deep copy of Insert
*/
public Object clone() {
GroupSymbol copyGroup = null;
if (group != null) {
copyGroup = group.clone();
}
List<ElementSymbol> copyVars =
LanguageObject.Util.deepClone(getVariables(), ElementSymbol.class);
List<Expression> copyVals = null;
if (getValues() != null) {
copyVals = LanguageObject.Util.deepClone(getValues(), Expression.class);
}
Insert copy = new Insert(copyGroup, copyVars, copyVals);
if (this.queryExpression != null) {
copy.setQueryExpression((QueryCommand) this.queryExpression.clone());
}
this.copyMetadataState(copy);
return copy;
}
private Expression rewriteMultiSourceCommand(Command command) throws TeiidComponentException {
Expression result = null;
if (command instanceof StoredProcedure) {
StoredProcedure obj = (StoredProcedure) command;
for (Iterator<SPParameter> params = obj.getMapOfParameters().values().iterator();
params.hasNext(); ) {
SPParameter param = params.next();
if (param.getParameterType() != SPParameter.IN) {
continue;
}
if (metadata.isMultiSourceElement(param.getMetadataID())) {
Expression source = param.getExpression();
params.remove();
if (param.isUsingDefault()
&& source instanceof Constant
&& ((Constant) source).isNull()) {
continue;
}
result = source;
break;
}
}
}
if (command instanceof Insert) {
Insert obj = (Insert) command;
for (int i = 0; i < obj.getVariables().size(); i++) {
ElementSymbol elem = obj.getVariables().get(i);
Object metadataID = elem.getMetadataID();
if (metadata.isMultiSourceElement(metadataID)) {
Expression source = (Expression) obj.getValues().get(i);
obj.getVariables().remove(i);
obj.getValues().remove(i);
result = source;
break;
}
}
} else if (command instanceof FilteredCommand) {
for (Criteria c : Criteria.separateCriteriaByAnd(((FilteredCommand) command).getCriteria())) {
if (!(c instanceof CompareCriteria)) {
continue;
}
CompareCriteria cc = (CompareCriteria) c;
if (cc.getLeftExpression() instanceof ElementSymbol) {
ElementSymbol es = (ElementSymbol) cc.getLeftExpression();
if (metadata.isMultiSourceElement(es.getMetadataID())
&& EvaluatableVisitor.willBecomeConstant(cc.getRightExpression())) {
if (result != null && !result.equals(cc.getRightExpression())) {
return Constant.NULL_CONSTANT;
}
result = cc.getRightExpression();
}
}
}
}
return result;
}
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)) {
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);
pinode.setConstraint((Criteria) node.getProperty(Info.CONSTRAINT));
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);
}
}
} 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);
}
}
}
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.LEFT_NESTED_REFERENCES);
ntjStrategy.setLeftMap(references);
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.needsEvaluation(command, modelID, metadata, capFinder);
aNode.setShouldEvaluateExpressions(
ev.requiresEvaluation(EvaluationLevel.PROCESSING) || shouldEval);
aNode.setCommand(command);
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();
aNode.setShouldEvaluateExpressions(true); // forces a rewrite
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.COMMAND_DETERMINISTIC) >= 0
&& command.areResultsCachable()) {
checkForSharedSourceCommand(aNode);
}
}
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);
orderByItem.setSymbol(new ExpressionSymbol("expr", ex)); // $NON-NLS-1$
}
} else {
orderBy.addVariable(
new ExpressionSymbol("expr", gCols.get(i)), OrderBy.ASC); // $NON-NLS-1$
}
}
}
if (orderBy != null) {
gnode.setOrderBy(orderBy.getOrderByItems());
}
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));
}
child.setProperty(
NodeConstants.Info.OUTPUT_COLS, node.getProperty(NodeConstants.Info.OUTPUT_COLS));
}
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;
}
/**
* Get batch from child node Walk through each row of child batch Bind values to insertCommand
* Execute insertCommand Update insertCount When no more data is available, output batch with
* single row containing insertCount
*/
public TupleBatch nextBatchDirect()
throws BlockedException, TeiidComponentException, TeiidProcessingException {
while (phase == REQUEST_CREATION) {
checkExitConditions();
/* If we don't have a batch to work, get the next
*/
if (currentBatch == null) {
if (sourceDone) {
phase = RESPONSE_PROCESSING;
break;
}
currentBatch = getChildren()[0].nextBatch(); // can throw BlockedException
sourceDone = currentBatch.getTerminationFlag();
this.batchRow = currentBatch.getBeginRow();
// normally we would want to skip a 0 sized batch, but it typically represents the terminal
// batch
// and for implicit temp tables we need to issue an empty insert
if (currentBatch.getRowCount() == 0
&& (!currentBatch.getTerminationFlag() || mode != Mode.ITERATOR)) {
currentBatch = null;
continue;
}
}
int batchSize = currentBatch.getRowCount();
int requests = 1;
switch (mode) {
case ITERATOR:
if (buffer == null) {
buffer =
getBufferManager()
.createTupleBuffer(intoElements, getConnectionID(), TupleSourceType.PROCESSOR);
}
buffer.addTupleBatch(currentBatch, true);
if (currentBatch.getTerminationFlag()
&& (buffer.getRowCount() != 0 || intoGroup.isImplicitTempGroupSymbol())) {
Insert insert = new Insert(intoGroup, intoElements, null);
buffer.close();
insert.setTupleSource(buffer.createIndexedTupleSource(true));
// Register insert command against source
registerRequest(insert);
} else {
requests = 0;
}
break;
case BATCH:
// Register batched update command against source
int endRow = currentBatch.getEndRow();
List<Command> rows = new ArrayList<Command>(endRow - batchRow);
for (int rowNum = batchRow; rowNum <= endRow; rowNum++) {
Insert insert =
new Insert(
intoGroup,
intoElements,
convertValuesToConstants(currentBatch.getTuple(rowNum), intoElements));
rows.add(insert);
}
registerRequest(new BatchedUpdateCommand(rows));
break;
case SINGLE:
batchSize = 1;
// Register insert command against source
// Defect 16036 - submit a new INSERT command to the DataManager.
registerRequest(
new Insert(
intoGroup,
intoElements,
convertValuesToConstants(currentBatch.getTuple(batchRow), intoElements)));
}
this.batchRow += batchSize;
if (batchRow > currentBatch.getEndRow()) {
currentBatch = null;
}
this.requestsRegistered += requests;
}
checkExitConditions();
// End this node's work
addBatchRow(Arrays.asList(insertCount));
terminateBatches();
return pullBatch();
}
private void ensureValue(Insert command, int size, int value) {
assertNotNull(command.getValues());
assertEquals(size, command.getValues().size());
assertEquals(new Integer(value), ((Constant) command.getValues().get(0)).getValue());
}
TempTable getOrCreateTempTable(
String tempTableID,
Command command,
BufferManager buffer,
boolean delegate,
boolean forUpdate,
CommandContext context,
GroupSymbol group)
throws TeiidProcessingException, BlockedException, TeiidComponentException {
if (!(group.getMetadataID() instanceof TempMetadataID)) {
// TODO: use a proper metadata
TempTableStore tts = context.getSessionTempTableStore();
context.setDeterminismLevel(Determinism.SESSION_DETERMINISTIC);
if (tts.getTempTable(tempTableID) == null) {
// implicitly create global (session scoped) temp table
LogManager.logDetail(
LogConstants.CTX_DQP, "binding global temp table to session", group); // $NON-NLS-1$
QueryMetadataInterface metadata = context.getMetadata();
Create create = GlobalTableStoreImpl.getCreateCommand(group, false, metadata);
tts.addTempTable(tempTableID, create, buffer, true, context);
}
return getTempTable(tempTableID, command, buffer, delegate, forUpdate, context);
}
TempTable tempTable = getTempTable(tempTableID, command, buffer, delegate, forUpdate, context);
if (tempTable != null) {
if (processors != null) {
TableProcessor withProcessor = processors.get(tempTableID);
if (withProcessor != null) {
TempTable tt = withProcessor.process(tempTable);
if (tt != tempTable) {
return tt;
}
processors.remove(tempTableID);
}
}
return tempTable;
}
// allow implicit temp group definition
List<ElementSymbol> columns = null;
if (command instanceof Insert) {
Insert insert = (Insert) command;
if (group.isImplicitTempGroupSymbol()) {
columns = insert.getVariables();
}
}
if (columns == null) {
if (processors != null) {
TableProcessor withProcessor = processors.get(tempTableID);
if (withProcessor != null) {
LogManager.logDetail(
LogConstants.CTX_DQP,
"Creating temporary table for with clause",
tempTableID); //$NON-NLS-1$
Create create = new Create();
create.setTable(new GroupSymbol(tempTableID));
create.setElementSymbolsAsColumns(withProcessor.columns);
withProcessor.alterCreate(create);
tempTable = addTempTable(tempTableID, create, buffer, true, context);
TempTable tt = withProcessor.process(tempTable);
if (tt != tempTable) {
return tt;
}
processors.remove(tempTableID);
return tempTable;
}
}
if (delegate && this.parentTempTableStore != null) {
// may be a cte from a higher scope that needs to have creation triggered
return parentTempTableStore.getOrCreateTempTable(
tempTableID, command, buffer, delegate, forUpdate, context, group);
}
throw new QueryProcessingException(
QueryPlugin.Event.TEIID30226,
QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30226, tempTableID));
}
LogManager.logDetail(
LogConstants.CTX_DQP, "Creating temporary table", tempTableID); // $NON-NLS-1$
Create create = new Create();
create.setTable(new GroupSymbol(tempTableID));
create.setElementSymbolsAsColumns(columns);
return addTempTable(tempTableID, create, buffer, true, context);
}
