use of org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression in project asterixdb by apache.
the class LangExpressionToPlanTranslator method translate.
public ILogicalPlan translate(Query expr, String outputDatasetName, ICompiledDmlStatement stmt, ILogicalOperator baseOp) throws AlgebricksException {
MutableObject<ILogicalOperator> base = new MutableObject<>(new EmptyTupleSourceOperator());
if (baseOp != null) {
base = new MutableObject<>(baseOp);
}
Pair<ILogicalOperator, LogicalVariable> p = expr.accept(this, base);
ArrayList<Mutable<ILogicalOperator>> globalPlanRoots = new ArrayList<>();
ILogicalOperator topOp = p.first;
List<LogicalVariable> liveVars = new ArrayList<>();
VariableUtilities.getLiveVariables(topOp, liveVars);
LogicalVariable unnestVar = liveVars.get(0);
LogicalVariable resVar = unnestVar;
if (outputDatasetName == null) {
FileSplit outputFileSplit = metadataProvider.getOutputFile();
if (outputFileSplit == null) {
outputFileSplit = getDefaultOutputFileLocation(metadataProvider.getApplicationContext());
}
metadataProvider.setOutputFile(outputFileSplit);
List<Mutable<ILogicalExpression>> writeExprList = new ArrayList<>(1);
writeExprList.add(new MutableObject<>(new VariableReferenceExpression(resVar)));
ResultSetSinkId rssId = new ResultSetSinkId(metadataProvider.getResultSetId());
ResultSetDataSink sink = new ResultSetDataSink(rssId, null);
DistributeResultOperator newTop = new DistributeResultOperator(writeExprList, sink);
newTop.getInputs().add(new MutableObject<>(topOp));
topOp = newTop;
// Retrieve the Output RecordType (if any) and store it on
// the DistributeResultOperator
IAType outputRecordType = metadataProvider.findOutputRecordType();
if (outputRecordType != null) {
topOp.getAnnotations().put("output-record-type", outputRecordType);
}
} else {
/**
* add the collection-to-sequence right before the project,
* because dataset only accept non-collection records
*/
LogicalVariable seqVar = context.newVar();
/**
* This assign adds a marker function collection-to-sequence: if the input is a singleton collection, unnest
* it; otherwise do nothing.
*/
AssignOperator assignCollectionToSequence = new AssignOperator(seqVar, new MutableObject<>(new ScalarFunctionCallExpression(FunctionUtil.getFunctionInfo(BuiltinFunctions.COLLECTION_TO_SEQUENCE), new MutableObject<>(new VariableReferenceExpression(resVar)))));
assignCollectionToSequence.getInputs().add(new MutableObject<>(topOp.getInputs().get(0).getValue()));
topOp.getInputs().get(0).setValue(assignCollectionToSequence);
ProjectOperator projectOperator = (ProjectOperator) topOp;
projectOperator.getVariables().set(0, seqVar);
resVar = seqVar;
DatasetDataSource targetDatasource = validateDatasetInfo(metadataProvider, stmt.getDataverseName(), stmt.getDatasetName());
List<Integer> keySourceIndicator = ((InternalDatasetDetails) targetDatasource.getDataset().getDatasetDetails()).getKeySourceIndicator();
ArrayList<LogicalVariable> vars = new ArrayList<>();
ArrayList<Mutable<ILogicalExpression>> exprs = new ArrayList<>();
List<Mutable<ILogicalExpression>> varRefsForLoading = new ArrayList<>();
List<List<String>> partitionKeys = targetDatasource.getDataset().getPrimaryKeys();
int numOfPrimaryKeys = partitionKeys.size();
for (int i = 0; i < numOfPrimaryKeys; i++) {
if (keySourceIndicator == null || keySourceIndicator.get(i).intValue() == 0) {
// record part
PlanTranslationUtil.prepareVarAndExpression(partitionKeys.get(i), resVar, vars, exprs, varRefsForLoading, context);
} else {
// meta part
PlanTranslationUtil.prepareMetaKeyAccessExpression(partitionKeys.get(i), unnestVar, exprs, vars, varRefsForLoading, context);
}
}
AssignOperator assign = new AssignOperator(vars, exprs);
List<String> additionalFilteringField = DatasetUtil.getFilterField(targetDatasource.getDataset());
List<LogicalVariable> additionalFilteringVars;
List<Mutable<ILogicalExpression>> additionalFilteringAssignExpressions;
List<Mutable<ILogicalExpression>> additionalFilteringExpressions = null;
AssignOperator additionalFilteringAssign = null;
if (additionalFilteringField != null) {
additionalFilteringVars = new ArrayList<>();
additionalFilteringAssignExpressions = new ArrayList<>();
additionalFilteringExpressions = new ArrayList<>();
PlanTranslationUtil.prepareVarAndExpression(additionalFilteringField, resVar, additionalFilteringVars, additionalFilteringAssignExpressions, additionalFilteringExpressions, context);
additionalFilteringAssign = new AssignOperator(additionalFilteringVars, additionalFilteringAssignExpressions);
additionalFilteringAssign.getInputs().add(new MutableObject<>(topOp));
assign.getInputs().add(new MutableObject<>(additionalFilteringAssign));
} else {
assign.getInputs().add(new MutableObject<>(topOp));
}
Mutable<ILogicalExpression> varRef = new MutableObject<>(new VariableReferenceExpression(resVar));
ILogicalOperator leafOperator;
switch(stmt.getKind()) {
case Statement.Kind.INSERT:
leafOperator = translateInsert(targetDatasource, varRef, varRefsForLoading, additionalFilteringExpressions, assign, stmt);
break;
case Statement.Kind.UPSERT:
leafOperator = translateUpsert(targetDatasource, varRef, varRefsForLoading, additionalFilteringExpressions, assign, additionalFilteringField, unnestVar, topOp, exprs, resVar, additionalFilteringAssign, stmt);
break;
case Statement.Kind.DELETE:
leafOperator = translateDelete(targetDatasource, varRef, varRefsForLoading, additionalFilteringExpressions, assign);
break;
case Statement.Kind.CONNECT_FEED:
leafOperator = translateConnectFeed(targetDatasource, varRef, varRefsForLoading, additionalFilteringExpressions, assign);
break;
case Statement.Kind.SUBSCRIBE_FEED:
leafOperator = translateSubscribeFeed((CompiledSubscribeFeedStatement) stmt, targetDatasource, unnestVar, topOp, exprs, resVar, varRefsForLoading, varRef, assign, additionalFilteringField, additionalFilteringAssign, additionalFilteringExpressions);
break;
default:
throw new AlgebricksException("Unsupported statement kind " + stmt.getKind());
}
topOp = leafOperator;
}
globalPlanRoots.add(new MutableObject<>(topOp));
ILogicalPlan plan = new ALogicalPlanImpl(globalPlanRoots);
eliminateSharedOperatorReferenceForPlan(plan);
return plan;
}
use of org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression in project asterixdb by apache.
the class LangExpressionToPlanTranslator method visit.
@Override
public Pair<ILogicalOperator, LogicalVariable> visit(IndexAccessor ia, Mutable<ILogicalOperator> tupSource) throws CompilationException {
Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = langExprToAlgExpression(ia.getExpr(), tupSource);
LogicalVariable v = context.newVar();
AbstractFunctionCallExpression f;
if (ia.isAny()) {
f = new ScalarFunctionCallExpression(FunctionUtil.getFunctionInfo(BuiltinFunctions.ANY_COLLECTION_MEMBER));
f.getArguments().add(new MutableObject<>(p.first));
} else {
Pair<ILogicalExpression, Mutable<ILogicalOperator>> indexPair = langExprToAlgExpression(ia.getIndexExpr(), tupSource);
f = new ScalarFunctionCallExpression(FunctionUtil.getFunctionInfo(BuiltinFunctions.GET_ITEM));
f.getArguments().add(new MutableObject<>(p.first));
f.getArguments().add(new MutableObject<>(indexPair.first));
}
AssignOperator a = new AssignOperator(v, new MutableObject<>(f));
a.getInputs().add(p.second);
return new Pair<>(a, v);
}
use of org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression in project asterixdb by apache.
the class LangExpressionToPlanTranslator method generateAndNotIsUnknownWrap.
// For an input expression `expr`, return `expr AND expr IS NOT UNKOWN`.
protected Mutable<ILogicalExpression> generateAndNotIsUnknownWrap(ILogicalExpression logicalExpr) {
List<Mutable<ILogicalExpression>> arguments = new ArrayList<>();
arguments.add(new MutableObject<>(logicalExpr));
Mutable<ILogicalExpression> expr = new MutableObject<>(new ScalarFunctionCallExpression(FunctionUtil.getFunctionInfo(BuiltinFunctions.IS_UNKOWN), new ArrayList<>(Collections.singletonList(new MutableObject<>(logicalExpr)))));
arguments.add(new MutableObject<>(new ScalarFunctionCallExpression(FunctionUtil.getFunctionInfo(BuiltinFunctions.NOT), new ArrayList<>(Collections.singletonList(expr)))));
return new MutableObject<>(new ScalarFunctionCallExpression(FunctionUtil.getFunctionInfo(BuiltinFunctions.AND), arguments));
}
use of org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression in project asterixdb by apache.
the class LangExpressionToPlanTranslator method processReturningExpression.
// Stitches the translated operators for the returning expression into the query plan.
private ILogicalOperator processReturningExpression(ILogicalOperator inputOperator, InsertDeleteUpsertOperator insertOp, CompiledInsertStatement compiledInsert) throws AlgebricksException {
Expression returnExpression = compiledInsert.getReturnExpression();
if (returnExpression == null) {
return inputOperator;
}
ILogicalOperator rootOperator = inputOperator;
//Makes the id of the insert var point to the record variable.
context.newVarFromExpression(compiledInsert.getVar());
context.setVar(compiledInsert.getVar(), ((VariableReferenceExpression) insertOp.getPayloadExpression().getValue()).getVariableReference());
Pair<ILogicalExpression, Mutable<ILogicalOperator>> p = langExprToAlgExpression(returnExpression, new MutableObject<>(rootOperator));
// Adds an assign operator for the returning expression.
LogicalVariable resultVar = context.newVar();
AssignOperator assignOperator = new AssignOperator(resultVar, new MutableObject<>(p.first));
assignOperator.getInputs().add(p.second);
// Adds a distribute result operator.
List<Mutable<ILogicalExpression>> expressions = new ArrayList<>();
expressions.add(new MutableObject<>(new VariableReferenceExpression(resultVar)));
ResultSetSinkId rssId = new ResultSetSinkId(metadataProvider.getResultSetId());
ResultSetDataSink sink = new ResultSetDataSink(rssId, null);
rootOperator = new DistributeResultOperator(expressions, sink);
rootOperator.getInputs().add(new MutableObject<>(assignOperator));
return rootOperator;
}
use of org.apache.hyracks.algebricks.core.algebra.base.ILogicalExpression in project asterixdb by apache.
the class LangExpressionToPlanTranslator method translateSubscribeFeed.
private ILogicalOperator translateSubscribeFeed(CompiledSubscribeFeedStatement sfs, DatasetDataSource targetDatasource, LogicalVariable unnestVar, ILogicalOperator topOp, ArrayList<Mutable<ILogicalExpression>> exprs, LogicalVariable resVar, List<Mutable<ILogicalExpression>> varRefsForLoading, Mutable<ILogicalExpression> varRef, ILogicalOperator assign, List<String> additionalFilteringField, AssignOperator additionalFilteringAssign, List<Mutable<ILogicalExpression>> additionalFilteringExpressions) throws AlgebricksException {
// if the feed is a change feed (i.e, performs different operations), we need to project op variable
InsertDeleteUpsertOperator feedModificationOp;
AssignOperator metaAndKeysAssign;
List<LogicalVariable> metaAndKeysVars = null;
List<Mutable<ILogicalExpression>> metaAndKeysExprs = null;
List<Mutable<ILogicalExpression>> metaExpSingletonList = null;
Feed feed = metadataProvider.findFeed(sfs.getDataverseName(), sfs.getFeedName());
boolean isChangeFeed = ExternalDataUtils.isChangeFeed(feed.getAdapterConfiguration());
boolean isUpsertFeed = ExternalDataUtils.isUpsertFeed(feed.getAdapterConfiguration());
ProjectOperator project = (ProjectOperator) topOp;
if (targetDatasource.getDataset().hasMetaPart() || isChangeFeed) {
metaAndKeysVars = new ArrayList<>();
metaAndKeysExprs = new ArrayList<>();
if (targetDatasource.getDataset().hasMetaPart()) {
// add the meta function
IFunctionInfo finfoMeta = FunctionUtil.getFunctionInfo(BuiltinFunctions.META);
ScalarFunctionCallExpression metaFunction = new ScalarFunctionCallExpression(finfoMeta, new MutableObject<>(new VariableReferenceExpression(unnestVar)));
// create assign for the meta part
LogicalVariable metaVar = context.newVar();
metaExpSingletonList = new ArrayList<>(1);
metaExpSingletonList.add(new MutableObject<>(new VariableReferenceExpression(metaVar)));
metaAndKeysVars.add(metaVar);
metaAndKeysExprs.add(new MutableObject<>(metaFunction));
project.getVariables().add(metaVar);
}
}
if (isChangeFeed) {
varRefsForLoading.clear();
for (Mutable<ILogicalExpression> assignExpr : exprs) {
if (assignExpr.getValue().getExpressionTag() == LogicalExpressionTag.FUNCTION_CALL) {
AbstractFunctionCallExpression funcCall = (AbstractFunctionCallExpression) assignExpr.getValue();
funcCall.substituteVar(resVar, unnestVar);
LogicalVariable pkVar = context.newVar();
metaAndKeysVars.add(pkVar);
metaAndKeysExprs.add(new MutableObject<>(assignExpr.getValue()));
project.getVariables().add(pkVar);
varRefsForLoading.add(new MutableObject<>(new VariableReferenceExpression(pkVar)));
}
}
// A change feed, we don't need the assign to access PKs
feedModificationOp = new InsertDeleteUpsertOperator(targetDatasource, varRef, varRefsForLoading, metaExpSingletonList, InsertDeleteUpsertOperator.Kind.UPSERT, false);
// Create and add a new variable used for representing the original record
feedModificationOp.setPrevRecordVar(context.newVar());
feedModificationOp.setPrevRecordType(targetDatasource.getItemType());
if (targetDatasource.getDataset().hasMetaPart()) {
List<LogicalVariable> metaVars = new ArrayList<>();
metaVars.add(context.newVar());
feedModificationOp.setPrevAdditionalNonFilteringVars(metaVars);
List<Object> metaTypes = new ArrayList<>();
metaTypes.add(targetDatasource.getMetaItemType());
feedModificationOp.setPrevAdditionalNonFilteringTypes(metaTypes);
}
if (additionalFilteringField != null) {
feedModificationOp.setPrevFilterVar(context.newVar());
feedModificationOp.setPrevFilterType(((ARecordType) targetDatasource.getItemType()).getFieldType(additionalFilteringField.get(0)));
additionalFilteringAssign.getInputs().clear();
additionalFilteringAssign.getInputs().add(assign.getInputs().get(0));
feedModificationOp.getInputs().add(new MutableObject<>(additionalFilteringAssign));
} else {
feedModificationOp.getInputs().add(assign.getInputs().get(0));
}
} else {
final InsertDeleteUpsertOperator.Kind opKind = isUpsertFeed ? InsertDeleteUpsertOperator.Kind.UPSERT : InsertDeleteUpsertOperator.Kind.INSERT;
feedModificationOp = new InsertDeleteUpsertOperator(targetDatasource, varRef, varRefsForLoading, metaExpSingletonList, opKind, false);
if (isUpsertFeed) {
feedModificationOp.setPrevRecordVar(context.newVar());
feedModificationOp.setPrevRecordType(targetDatasource.getItemType());
}
feedModificationOp.getInputs().add(new MutableObject<>(assign));
}
if (targetDatasource.getDataset().hasMetaPart() || isChangeFeed) {
metaAndKeysAssign = new AssignOperator(metaAndKeysVars, metaAndKeysExprs);
metaAndKeysAssign.getInputs().add(topOp.getInputs().get(0));
topOp.getInputs().set(0, new MutableObject<>(metaAndKeysAssign));
}
feedModificationOp.setAdditionalFilteringExpressions(additionalFilteringExpressions);
ILogicalOperator leafOperator = new DelegateOperator(new CommitOperator(true));
leafOperator.getInputs().add(new MutableObject<>(feedModificationOp));
return leafOperator;
}
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