Package com.facebook.presto.sql.tree

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

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    public void testFilter()
            throws Exception
    {
        PlanNode node = filter(baseTableScan,
                and(
                        greaterThan(AE, new FunctionCall(QualifiedName.of("rand"), ImmutableList.<Expression>of())),
                        lessThan(BE, number(10))));

        Expression effectivePredicate = EffectivePredicateExtractor.extract(node);

        // Non-deterministic functions should be purged
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        return new IsNullPredicate(expression);
    }

    private static FunctionCall fakeFunction(String name)
    {
        return new FunctionCall(QualifiedName.of("test"), ImmutableList.<Expression>of());
    }
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    public void testFilter()
            throws Exception
    {
        PlanNode node = filter(baseTableScan,
                and(
                        greaterThan(AE, new FunctionCall(QualifiedName.of("rand"), ImmutableList.<Expression>of())),
                        lessThan(BE, number(10))));

        Expression effectivePredicate = EffectivePredicateExtractor.extract(node);

        // Non-deterministic functions should be purged
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        return new IsNullPredicate(expression);
    }

    private static FunctionCall fakeFunction(String name)
    {
        return new FunctionCall(QualifiedName.of("test"), 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", BIGINT));
                    }
                }
            }
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            }
            FunctionInfo function = metadata.resolveFunction(node.getName(), argumentTypes, false);

            // 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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            ImmutableMap.Builder<Symbol, FunctionCall> functionCalls = 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));

                    functionCalls.put(symbol, call);
                    functions.put(symbol, node.getFunctions().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.getFunctionHandles().get(symbol));
                }
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                Symbol intermediateSymbol = allocator.newSymbol(function.getName().getSuffix(), function.getIntermediateType());
                intermediateCalls.put(intermediateSymbol, entry.getValue());
                intermediateFunctions.put(intermediateSymbol, functionHandle);

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

            AggregationNode aggregation = new AggregationNode(idAllocator.getNextId(), plan.getRoot(), groupBy, intermediateCalls, intermediateFunctions, PARTIAL);
            plan.setRoot(new SinkNode(idAllocator.getNextId(), aggregation, aggregation.getOutputSymbols()));
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Related Classes of com.facebook.presto.sql.tree.FunctionCall

  • com.facebook.presto.sql.gen.ByteCodeExpressionVisitor
  • com.facebook.presto.sql.planner.DistributedLogicalPlanner$Visitor
  • com.facebook.presto.sql.planner.ExpressionInterpreter
  • com.facebook.presto.sql.planner.ExpressionInterpreter$Visitor
  • com.facebook.presto.sql.planner.LiteralInterpreter
  • com.facebook.presto.sql.planner.optimizations.CanonicalizeExpressions$CanonicalizeExpressionRewriter
  • com.facebook.presto.sql.planner.optimizations.CountConstantOptimizer$Rewriter
  • com.facebook.presto.sql.planner.optimizations.ImplementSampleAsFilter$Rewriter
  • com.facebook.presto.sql.planner.optimizations.PruneUnreferencedOutputs$Rewriter
  • com.facebook.presto.sql.planner.optimizations.UnaliasSymbolReferences$Rewriter
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