Package com.facebook.presto.sql.tree

Examples of com.facebook.presto.sql.tree.FunctionCall

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        return comparison(LESS_THAN, reference(symbol), reference(symbol));
    }

    private static Expression randPredicate(Symbol symbol)
    {
        return comparison(GREATER_THAN, reference(symbol), new FunctionCall(new QualifiedName("rand"), ImmutableList.<Expression>of()));
    }
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        return comparison(LESS_THAN, reference(symbol), reference(symbol));
    }

    private static Expression randPredicate(Symbol symbol)
    {
        return comparison(GREATER_THAN, reference(symbol), new FunctionCall(new QualifiedName("rand"), ImmutableList.<Expression>of()));
    }
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            PlanNode source = planRewriter.rewrite(node.getSource(), context);
            if (source instanceof ProjectNode) {
                ProjectNode projectNode = (ProjectNode) source;
                for (Entry<Symbol, FunctionCall> entry : node.getAggregations().entrySet()) {
                    Symbol symbol = entry.getKey();
                    FunctionCall functionCall = entry.getValue();
                    Signature signature = node.getFunctions().get(symbol);
                    if (isCountConstant(projectNode, functionCall, signature)) {
                        aggregations.put(symbol, new FunctionCall(functionCall.getName(), null, functionCall.isDistinct(), ImmutableList.<Expression>of()));
                        functions.put(symbol, new Signature("count", StandardTypes.BIGINT));
                    }
                }
            }
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            ImmutableMap.Builder<Symbol, FunctionCall> functionCalls = ImmutableMap.builder();
            ImmutableMap.Builder<Symbol, Symbol> masks = ImmutableMap.builder();
            for (Map.Entry<Symbol, FunctionCall> entry : node.getAggregations().entrySet()) {
                Symbol symbol = entry.getKey();
                Symbol canonical = canonicalize(symbol);
                FunctionCall canonicalCall = (FunctionCall) canonicalize(entry.getValue());
                functionCalls.put(canonical, canonicalCall);
                functionInfos.put(canonical, node.getFunctions().get(symbol));
            }
            for (Map.Entry<Symbol, Symbol> entry : node.getMasks().entrySet()) {
                masks.put(canonicalize(entry.getKey()), canonicalize(entry.getValue()));
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            ImmutableMap.Builder<Symbol, Symbol> masks = ImmutableMap.builder();
            for (Map.Entry<Symbol, FunctionCall> entry : node.getAggregations().entrySet()) {
                Symbol symbol = entry.getKey();

                if (expectedOutputs.contains(symbol)) {
                    FunctionCall call = entry.getValue();
                    expectedInputs.addAll(DependencyExtractor.extractUnique(call));
                    if (node.getMasks().containsKey(symbol)) {
                        expectedInputs.add(node.getMasks().get(symbol));
                        masks.put(symbol, node.getMasks().get(symbol));
                    }
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            ImmutableMap.Builder<Symbol, FunctionCall> functionCalls = ImmutableMap.builder();
            for (Map.Entry<Symbol, FunctionCall> entry : node.getWindowFunctions().entrySet()) {
                Symbol symbol = entry.getKey();

                if (expectedOutputs.contains(symbol)) {
                    FunctionCall call = entry.getValue();
                    expectedInputs.addAll(DependencyExtractor.extractUnique(call));

                    functionCalls.put(symbol, call);
                    functions.put(symbol, node.getSignatures().get(symbol));
                }
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                }
            }

            // do not optimize non-deterministic functions
            if (optimize && (!function.isDeterministic() || hasUnresolvedValue(argumentValues))) {
                return new FunctionCall(node.getName(), node.getWindow().orNull(), node.isDistinct(), toExpressions(argumentValues, argumentTypes));
            }
            return invoke(session, function.getMethodHandle(), argumentValues);
        }
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                if (masks.containsKey(entry.getKey())) {
                    intermediateMask.put(intermediateSymbol, masks.get(entry.getKey()));
                }

                // rewrite final aggregation in terms of intermediate function
                finalCalls.put(entry.getKey(), new FunctionCall(function.getName(), ImmutableList.<Expression>of(new QualifiedNameReference(intermediateSymbol.toQualifiedName()))));
            }

            // create partial aggregation plan
            AggregationNode partialAggregation = new AggregationNode(idAllocator.getNextId(), plan.getRoot(), groupBy, intermediateCalls, intermediateFunctions, intermediateMask, PARTIAL, sampleWeight, confidence);
            plan.setRoot(new SinkNode(idAllocator.getNextId(), partialAggregation, partialAggregation.getOutputSymbols()));
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        }

        if (type.equals(DOUBLE)) {
            Double value = (Double) object;
            if (value.isNaN()) {
                return new FunctionCall(new QualifiedName("nan"), ImmutableList.<Expression>of());
            }
            else if (value == Double.NEGATIVE_INFINITY) {
                return new NegativeExpression(new FunctionCall(new QualifiedName("infinity"), ImmutableList.<Expression>of()));
            }
            else if (value == Double.POSITIVE_INFINITY) {
                return new FunctionCall(new QualifiedName("infinity"), ImmutableList.<Expression>of());
            }
            else {
                return new DoubleLiteral(object.toString());
            }
        }

        if (type.equals(VARCHAR)) {
            if (object instanceof Slice) {
                return new StringLiteral(((Slice) object).toString(UTF_8));
            }

            if (object instanceof String) {
                return new StringLiteral((String) object);
            }
        }

        if (type.equals(BOOLEAN)) {
            return new BooleanLiteral(object.toString());
        }

        Signature signature = FunctionRegistry.getMagicLiteralFunctionSignature(type);
        Expression rawLiteral = toExpression(object, FunctionRegistry.type(type.getJavaType()));
        return new FunctionCall(new QualifiedName(signature.getName()), ImmutableList.of(rawLiteral));
    }
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                argumentTypes.add(type);
            }
            FunctionInfo function = metadata.getFunction(node.getName(), argumentTypes, false);
            // do not optimize non-deterministic functions
            if (optimize && !function.isDeterministic()) {
                return new FunctionCall(node.getName(), node.getWindow().orNull(), node.isDistinct(), toExpressions(argumentValues));
            }
            MethodHandle handle = function.getScalarFunction();
            if (handle.type().parameterCount() > 0 && handle.type().parameterType(0) == Session.class) {
                handle = handle.bindTo(session);
            }
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