Package edu.uci.ics.hyracks.algebricks.core.algebra.base

Examples of edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable

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            return false;
        }

        // Replace search string with assign.
        Mutable<ILogicalExpression> assignExpression = functionCall2.getArguments().get(0);
        LogicalVariable assignVariable = context.newVar();
        AssignOperator aOp = new AssignOperator(assignVariable, assignExpression);
        for (Mutable<ILogicalOperator> input : aggregate.getInputs()) {
            aOp.getInputs().add(input);
        }
        functionCall.getArguments().get(0).setValue(new VariableReferenceExpression(assignVariable));
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                ConstantExpression constantExpression = (ConstantExpression) argFirstLe;
                VXQueryConstantValue constantValue = (VXQueryConstantValue) constantExpression.getValue();
                return constantValue.getType();
            case VARIABLE:
                VariableReferenceExpression variableRefExp = (VariableReferenceExpression) argFirstLe;
                LogicalVariable variableId = variableRefExp.getVariableReference();
                Mutable<ILogicalOperator> variableProducer = OperatorToolbox.findProducerOf(opRef, variableId);
                if (variableProducer == null) {
                    return null;
                }
                AbstractLogicalOperator variableOp = (AbstractLogicalOperator) variableProducer.getValue();
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        NestedTupleSourceOperator ntsOperator = new NestedTupleSourceOperator(inputOperator);
        nextOperatorRef = new MutableObject<ILogicalOperator>(ntsOperator);

        // Get variable that is being used for sort and distinct operators.
        VariableReferenceExpression inputVariableRef = (VariableReferenceExpression) mutableVariableExpresion.getValue();
        LogicalVariable inputVariable = inputVariableRef.getVariableReference();

        // Unnest.
        LogicalVariable unnestVariable = context.newVar();
        UnnestOperator unnestOperator = getUnnestOperator(inputVariable, unnestVariable);
        unnestOperator.getInputs().add(nextOperatorRef);
        nextOperatorRef = new MutableObject<ILogicalOperator>(unnestOperator);

        // Aggregate.
        VariableReferenceExpression inputArg = new VariableReferenceExpression(unnestVariable);
        finalFunctionCall.getArguments().get(0).setValue(inputArg);
        Mutable<ILogicalExpression> aggregateArgs = functionCall.getArguments().get(0);

        LogicalVariable aggregateVariable = assign.getVariables().get(0);
        AggregateOperator aggregateOperator = getAggregateOperator(aggregateInfo, aggregateArgs, aggregateVariable);
        aggregateOperator.getInputs().add(nextOperatorRef);
        nextOperatorRef = new MutableObject<ILogicalOperator>(aggregateOperator);

        // Subplan.
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            subplanEnd.getInputs().get(count++).setValue(input.getValue());
        }

        // Replace search string with assign.
        Mutable<ILogicalExpression> assignExpression = functionCall2.getArguments().get(0);
        LogicalVariable assignVariable = context.newVar();
        AssignOperator aOp = new AssignOperator(assignVariable, assignExpression);
        for (Mutable<ILogicalOperator> input : aggregate.getInputs()) {
            aOp.getInputs().add(input);
        }
        functionCall.getArguments().get(0).setValue(new VariableReferenceExpression(assignVariable));
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        nextOperatorRef = new MutableObject<ILogicalOperator>(ntsOperator);

        // Get variable that is being used for sort and distinct operators.
        VariableReferenceExpression inputVariableRef = (VariableReferenceExpression) functionCall.getArguments().get(0)
                .getValue();
        LogicalVariable inputVariable = inputVariableRef.getVariableReference();

        // Unnest.
        LogicalVariable unnestVariable = context.newVar();
        UnnestOperator unnestOperator = getUnnestOperator(inputVariable, unnestVariable);
        unnestOperator.getInputs().add(nextOperatorRef);
        nextOperatorRef = new MutableObject<ILogicalOperator>(unnestOperator);

        // Assign Node ID key.
        LogicalVariable nodeIdKeyVariable = context.newVar();
        AssignOperator nodeIdAssignOp = getAssignOperator(unnestVariable, nodeIdKeyVariable,
                BuiltinOperators.ID_FROM_NODE);
        nodeIdAssignOp.getInputs().add(nextOperatorRef);
        nextOperatorRef = new MutableObject<ILogicalOperator>(nodeIdAssignOp);

        // Prepare for Order and Distinct.
        Mutable<ILogicalExpression> nodeIdKeyVariableRef = new MutableObject<ILogicalExpression>(
                new VariableReferenceExpression(nodeIdKeyVariable));

        // Distinct.
        if (functionCall.getFunctionIdentifier().equals(
                BuiltinOperators.SORT_DISTINCT_NODES_ASC_OR_ATOMICS.getFunctionIdentifier())
                || functionCall.getFunctionIdentifier().equals(
                        BuiltinOperators.DISTINCT_NODES_OR_ATOMICS.getFunctionIdentifier())) {
            LogicalVariable groupByVariable = context.newVar();
            ILogicalExpression nodeIdKeyVre = new VariableReferenceExpression(nodeIdKeyVariable);
            GroupByOperator groupByOperator = getGroupByOperator(groupByVariable, nodeIdKeyVre);
            groupByOperator.getInputs().add(nextOperatorRef);
            nextOperatorRef = new MutableObject<ILogicalOperator>(groupByOperator);
        }

//        // Order.
//        if (functionCall.getFunctionIdentifier().equals(
//                BuiltinOperators.SORT_DISTINCT_NODES_ASC_OR_ATOMICS.getFunctionIdentifier())
//                || functionCall.getFunctionIdentifier().equals(
//                        BuiltinOperators.SORT_NODES_ASC_OR_ATOMICS.getFunctionIdentifier())) {
//            OrderOperator orderOperator = getOrderOperator(nodeIdKeyVariableRef);
//            orderOperator.getInputs().add(nextOperatorRef);
//            nextOperatorRef = new MutableObject<ILogicalOperator>(orderOperator);
//        }
//
        // Aggregate.
        LogicalVariable aggregateVariable = assign.getVariables().get(0);
        AggregateOperator aggregateOperator = getAggregateOperator(unnestVariable, aggregateVariable);
        aggregateOperator.getInputs().add(nextOperatorRef);
        nextOperatorRef = new MutableObject<ILogicalOperator>(aggregateOperator);

        // Subplan.
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                            found = false;
                        }
                    }
                    if (found) {
                        // push down
                        LogicalVariable assignVariable = context.newVar();
                        AssignOperator aOp = new AssignOperator(assignVariable, new MutableObject<ILogicalExpression>(expressionM.getValue()));
                        aOp.getInputs().add(new MutableObject<ILogicalOperator>(branch.getValue()));
                        branch.setValue(aOp);
                        aOp.recomputeSchema();
                       
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        // Remove the aggregate assign, by creating a no op.
        assign.getExpressions().get(0).setValue(variableReference);

        // Add an assign operator to set up partitioning variable.
        // Create a new assign for a TRUE variable.
        LogicalVariable trueVar = context.newVar();
        IPointable p = (BooleanPointable) BooleanPointable.FACTORY.createPointable();
        XDMConstants.setTrue(p);
        VXQueryConstantValue cv = new VXQueryConstantValue(SequenceType.create(BuiltinTypeRegistry.XS_BOOLEAN,
                Quantifier.QUANT_ONE), p.getByteArray());
        AssignOperator trueAssignOp = new AssignOperator(trueVar, new MutableObject<ILogicalExpression>(
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                        QName name = createQName(node.getName());
                        SequenceType type = SequenceType.create(AnyItemType.INSTANCE, Quantifier.QUANT_STAR);
                        if (node.getType() != null) {
                            type = createSequenceType(node.getType());
                        }
                        LogicalVariable lVar = newLogicalVariable();
                        XQueryVariable var = new XQueryVariable(name, type, lVar);
                        moduleCtx.registerVariable(var);
                        break;
                    }
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                                XQueryVariable pVar = new XQueryVariable(pName, pType, newLogicalVariable());
                                params[i] = pVar;
                                tCtx.varScope.registerVariable(pVar);
                            }
                            f.setParameters(params);
                            LogicalVariable var = translateExpression(node.getBody(), tCtx);
                            ILogicalExpression expr = treat(vre(var), sign.getReturnType());
                            var = createAssignment(expr, tCtx);
                            f.setBody(new ALogicalPlanImpl(mutable(tCtx.op)));
                        }
                        break;
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    private ILogicalPlan translateMainModule(MainModuleNode moduleNode) throws SystemException {
        QueryBodyNode qbn = moduleNode.getQueryBody();
        ASTNode queryBody = qbn.getExpression();
        TranslationContext tCtx = new TranslationContext(null, new EmptyTupleSourceOperator());
        LogicalVariable lVar = translateExpression(queryBody, tCtx);
        LogicalVariable iLVar = newLogicalVariable();
        UnnestOperator unnest = new UnnestOperator(iLVar, mutable(ufce(BuiltinOperators.ITERATE, vre(lVar))));
        unnest.getInputs().add(mutable(tCtx.op));
        List<Mutable<ILogicalExpression>> exprs = new ArrayList<Mutable<ILogicalExpression>>();
        exprs.add(mutable(vre(iLVar)));
        QueryResultSetDataSink sink = new QueryResultSetDataSink(ccb.getResultSetId(), null);
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Related Classes of edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable

  • org.apache.vxquery.compiler.rewriter.rules.ConsolidateAssignAggregateRule
  • org.apache.vxquery.compiler.rewriter.rules.ConvertAssignSortDistinctNodesToOperatorsRule
  • org.apache.vxquery.compiler.rewriter.rules.ConvertAssignToAggregateRule
  • org.apache.vxquery.compiler.rewriter.rules.EliminateUnnestAggregateSequencesRule
  • org.apache.vxquery.compiler.rewriter.rules.EliminateUnnestAggregateSubplanRule
  • org.apache.vxquery.compiler.rewriter.rules.PushFunctionsOntoEqJoinBranches
  • org.apache.vxquery.compiler.rewriter.rules.util.ExpressionToolbox
  • org.apache.vxquery.xmlquery.translator.XMLQueryTranslator
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