Examples with COUNT io.hetu.core.spi.cube.CubeAggregateFunction.COUNT used on opensource projects

Example 1 with COUNT

use of io.hetu.core.spi.cube.CubeAggregateFunction.COUNT in project hetu-core by openlookeng.

the class AggregationRewriteWithCube method createScanNode.

public CubeRewriteResult createScanNode(AggregationNode originalAggregationNode, PlanNode filterNode, TableHandle cubeTableHandle, Map<String, ColumnHandle> cubeColumnsMap, List<ColumnMetadata> cubeColumnsMetadata, boolean exactGroupsMatch) {
    Set<Symbol> cubeScanSymbols = new HashSet<>();
    Map<Symbol, ColumnHandle> symbolAssignments = new HashMap<>();
    Set<CubeRewriteResult.DimensionSource> dimensionSymbols = new HashSet<>();
    Set<CubeRewriteResult.AggregatorSource> aggregationColumns = new HashSet<>();
    Set<CubeRewriteResult.AverageAggregatorSource> averageAggregationColumns = new HashSet<>();
    Map<Symbol, ColumnMetadata> symbolMetadataMap = new HashMap<>();
    Map<String, ColumnMetadata> columnMetadataMap = cubeColumnsMetadata.stream().collect(Collectors.toMap(ColumnMetadata::getName, Function.identity()));
    boolean computeAvgDividingSumByCount = true;
    Set<Symbol> filterSymbols = new HashSet<>();
    if (filterNode != null) {
        filterSymbols.addAll(SymbolsExtractor.extractUnique(((FilterNode) filterNode).getPredicate()));
    }
    for (Symbol filterSymbol : filterSymbols) {
        if (symbolMappings.containsKey(filterSymbol.getName()) && symbolMappings.get(filterSymbol.getName()) instanceof ColumnHandle) {
            // output symbol references of the columns in original table
            ColumnHandle originalColumn = (ColumnHandle) symbolMappings.get(filterSymbol.getName());
            ColumnHandle cubeScanColumn = cubeColumnsMap.get(originalColumn.getColumnName());
            ColumnMetadata columnMetadata = columnMetadataMap.get(cubeScanColumn.getColumnName());
            Symbol cubeScanSymbol = symbolAllocator.newSymbol(cubeScanColumn.getColumnName(), columnMetadata.getType());
            cubeScanSymbols.add(cubeScanSymbol);
            symbolAssignments.put(cubeScanSymbol, cubeScanColumn);
            symbolMetadataMap.put(cubeScanSymbol, columnMetadata);
            rewrittenMappings.put(filterSymbol.getName(), cubeScanSymbol);
            dimensionSymbols.add(new CubeRewriteResult.DimensionSource(filterSymbol, cubeScanSymbol));
        }
    }
    for (Symbol originalAggOutputSymbol : originalAggregationNode.getOutputSymbols()) {
        if (symbolMappings.containsKey(originalAggOutputSymbol.getName()) && symbolMappings.get(originalAggOutputSymbol.getName()) instanceof ColumnHandle) {
            // output symbol references of the columns in original table - column part of group by clause
            ColumnHandle originalColumn = (ColumnHandle) symbolMappings.get(originalAggOutputSymbol.getName());
            ColumnHandle cubeScanColumn = cubeColumnsMap.get(originalColumn.getColumnName());
            ColumnMetadata columnMetadata = columnMetadataMap.get(cubeScanColumn.getColumnName());
            if (!symbolAssignments.containsValue(cubeScanColumn)) {
                Symbol cubeScanSymbol = symbolAllocator.newSymbol(cubeScanColumn.getColumnName(), columnMetadata.getType());
                cubeScanSymbols.add(cubeScanSymbol);
                symbolAssignments.put(cubeScanSymbol, cubeScanColumn);
                symbolMetadataMap.put(cubeScanSymbol, columnMetadata);
                rewrittenMappings.put(originalAggOutputSymbol.getName(), cubeScanSymbol);
                dimensionSymbols.add(new CubeRewriteResult.DimensionSource(originalAggOutputSymbol, cubeScanSymbol));
            } else {
                Symbol cubeScanSymbol = symbolAssignments.keySet().stream().filter(key -> cubeScanColumn.equals(symbolAssignments.get(key))).findFirst().get();
                rewrittenMappings.put(originalAggOutputSymbol.getName(), cubeScanSymbol);
                dimensionSymbols.add(new CubeRewriteResult.DimensionSource(originalAggOutputSymbol, cubeScanSymbol));
            }
        } else if (originalAggregationNode.getAggregations().containsKey(originalAggOutputSymbol)) {
            // output symbol is mapped to an aggregation
            AggregationNode.Aggregation aggregation = originalAggregationNode.getAggregations().get(originalAggOutputSymbol);
            String aggFunction = aggregation.getFunctionCall().getDisplayName();
            List<Expression> arguments = aggregation.getArguments() == null ? null : aggregation.getArguments().stream().map(OriginalExpressionUtils::castToExpression).collect(Collectors.toList());
            if (arguments != null && !arguments.isEmpty() && (!(arguments.get(0) instanceof SymbolReference))) {
                log.info("Not a symbol reference in aggregation function. Agg Function = %s, Arguments = %s", aggFunction, arguments);
                continue;
            }
            Object mappedValue = arguments == null || arguments.isEmpty() ? null : symbolMappings.get(((SymbolReference) arguments.get(0)).getName());
            if (mappedValue == null || (mappedValue instanceof LongLiteral && ((LongLiteral) mappedValue).getValue() == 1)) {
                // COUNT aggregation
                if (CubeAggregateFunction.COUNT.getName().equals(aggFunction) && !aggregation.isDistinct()) {
                    // COUNT 1
                    AggregationSignature aggregationSignature = AggregationSignature.count();
                    String cubeColumnName = cubeMetadata.getColumn(aggregationSignature).orElseThrow(() -> new PrestoException(CUBE_ERROR, "Cannot find column associated with aggregation " + aggregationSignature));
                    ColumnHandle cubeColHandle = cubeColumnsMap.get(cubeColumnName);
                    if (!symbolAssignments.containsValue(cubeColHandle)) {
                        ColumnMetadata columnMetadata = columnMetadataMap.get(cubeColHandle.getColumnName());
                        Symbol cubeScanSymbol = symbolAllocator.newSymbol(cubeColHandle.getColumnName(), columnMetadata.getType());
                        cubeScanSymbols.add(cubeScanSymbol);
                        symbolMetadataMap.put(cubeScanSymbol, columnMetadata);
                        symbolAssignments.put(cubeScanSymbol, cubeColHandle);
                        rewrittenMappings.put(originalAggOutputSymbol.getName(), cubeScanSymbol);
                        aggregationColumns.add(new CubeRewriteResult.AggregatorSource(originalAggOutputSymbol, cubeScanSymbol));
                    }
                }
            } else if (mappedValue instanceof ColumnHandle) {
                String originalColumnName = ((ColumnHandle) mappedValue).getColumnName();
                boolean distinct = originalAggregationNode.getAggregations().get(originalAggOutputSymbol).isDistinct();
                switch(aggFunction) {
                    case "min":
                    case "max":
                    case "sum":
                    case "count":
                        AggregationSignature aggregationSignature = new AggregationSignature(aggFunction, originalColumnName, distinct);
                        String cubeColumnName = cubeMetadata.getColumn(aggregationSignature).orElseThrow(() -> new PrestoException(CUBE_ERROR, "Cannot find column associated with aggregation " + aggregationSignature));
                        ColumnHandle cubeColHandle = cubeColumnsMap.get(cubeColumnName);
                        if (!symbolAssignments.containsValue(cubeColHandle)) {
                            ColumnMetadata columnMetadata = columnMetadataMap.get(cubeColHandle.getColumnName());
                            Symbol cubeScanSymbol = symbolAllocator.newSymbol(cubeColHandle.getColumnName(), columnMetadata.getType());
                            cubeScanSymbols.add(cubeScanSymbol);
                            symbolAssignments.put(cubeScanSymbol, cubeColHandle);
                            symbolMetadataMap.put(cubeScanSymbol, columnMetadata);
                            rewrittenMappings.put(originalAggOutputSymbol.getName(), cubeScanSymbol);
                            aggregationColumns.add(new CubeRewriteResult.AggregatorSource(originalAggOutputSymbol, cubeScanSymbol));
                        } else {
                            ColumnMetadata columnMetadata = columnMetadataMap.get(cubeColHandle.getColumnName());
                            Symbol cubeScanSymbol = symbolAssignments.keySet().stream().filter(key -> cubeColHandle.equals(symbolAssignments.get(key))).findFirst().get();
                            cubeScanSymbols.add(cubeScanSymbol);
                            symbolAssignments.put(cubeScanSymbol, cubeColHandle);
                            symbolMetadataMap.put(cubeScanSymbol, columnMetadata);
                            rewrittenMappings.put(originalAggOutputSymbol.getName(), cubeScanSymbol);
                            aggregationColumns.add(new CubeRewriteResult.AggregatorSource(originalAggOutputSymbol, cubeScanSymbol));
                        }
                        break;
                    case "avg":
                        AggregationSignature avgAggregationSignature = new AggregationSignature(aggFunction, originalColumnName, distinct);
                        if (exactGroupsMatch && cubeMetadata.getColumn(avgAggregationSignature).isPresent()) {
                            computeAvgDividingSumByCount = false;
                            String avgCubeColumnName = cubeMetadata.getColumn(avgAggregationSignature).orElseThrow(() -> new PrestoException(CUBE_ERROR, "Cannot find column associated with aggregation " + avgAggregationSignature));
                            ColumnHandle avgCubeColHandle = cubeColumnsMap.get(avgCubeColumnName);
                            if (!symbolAssignments.containsValue(avgCubeColHandle)) {
                                ColumnMetadata columnMetadata = columnMetadataMap.get(avgCubeColHandle.getColumnName());
                                Symbol cubeScanSymbol = symbolAllocator.newSymbol(avgCubeColHandle.getColumnName(), columnMetadata.getType());
                                cubeScanSymbols.add(cubeScanSymbol);
                                symbolAssignments.put(cubeScanSymbol, avgCubeColHandle);
                                symbolMetadataMap.put(cubeScanSymbol, columnMetadata);
                                rewrittenMappings.put(originalAggOutputSymbol.getName(), cubeScanSymbol);
                                aggregationColumns.add(new CubeRewriteResult.AggregatorSource(originalAggOutputSymbol, cubeScanSymbol));
                            }
                        } else {
                            AggregationSignature sumSignature = new AggregationSignature(SUM.getName(), originalColumnName, distinct);
                            String sumColumnName = cubeMetadata.getColumn(sumSignature).orElseThrow(() -> new PrestoException(CUBE_ERROR, "Cannot find column associated with aggregation " + sumSignature));
                            ColumnHandle sumColumnHandle = cubeColumnsMap.get(sumColumnName);
                            Symbol sumSymbol = null;
                            if (!symbolAssignments.containsValue(sumColumnHandle)) {
                                ColumnMetadata columnMetadata = columnMetadataMap.get(sumColumnHandle.getColumnName());
                                sumSymbol = symbolAllocator.newSymbol("sum_" + originalColumnName + "_" + originalAggOutputSymbol.getName(), columnMetadata.getType());
                                cubeScanSymbols.add(sumSymbol);
                                symbolAssignments.put(sumSymbol, sumColumnHandle);
                                symbolMetadataMap.put(sumSymbol, columnMetadata);
                                rewrittenMappings.put(sumSymbol.getName(), sumSymbol);
                                aggregationColumns.add(new CubeRewriteResult.AggregatorSource(sumSymbol, sumSymbol));
                            } else {
                                for (Map.Entry<Symbol, ColumnHandle> assignment : symbolAssignments.entrySet()) {
                                    if (assignment.getValue().equals(sumColumnHandle)) {
                                        sumSymbol = assignment.getKey();
                                        break;
                                    }
                                }
                            }
                            AggregationSignature countSignature = new AggregationSignature(COUNT.getName(), originalColumnName, distinct);
                            String countColumnName = cubeMetadata.getColumn(countSignature).orElseThrow(() -> new PrestoException(CUBE_ERROR, "Cannot find column associated with aggregation " + countSignature));
                            ColumnHandle countColumnHandle = cubeColumnsMap.get(countColumnName);
                            Symbol countSymbol = null;
                            if (!symbolAssignments.containsValue(countColumnHandle)) {
                                ColumnMetadata columnMetadata = columnMetadataMap.get(countColumnHandle.getColumnName());
                                countSymbol = symbolAllocator.newSymbol("count_" + originalColumnName + "_" + originalAggOutputSymbol.getName(), columnMetadata.getType());
                                cubeScanSymbols.add(countSymbol);
                                symbolAssignments.put(countSymbol, countColumnHandle);
                                symbolMetadataMap.put(countSymbol, columnMetadata);
                                rewrittenMappings.put(countSymbol.getName(), countSymbol);
                                aggregationColumns.add(new CubeRewriteResult.AggregatorSource(countSymbol, countSymbol));
                            } else {
                                for (Map.Entry<Symbol, ColumnHandle> assignment : symbolAssignments.entrySet()) {
                                    if (assignment.getValue().equals(countColumnHandle)) {
                                        countSymbol = assignment.getKey();
                                        break;
                                    }
                                }
                            }
                            averageAggregationColumns.add(new CubeRewriteResult.AverageAggregatorSource(originalAggOutputSymbol, sumSymbol, countSymbol));
                        }
                        break;
                    default:
                        throw new PrestoException(StandardErrorCode.GENERIC_INTERNAL_ERROR, "Unsupported aggregation function " + aggFunction);
                }
            } else {
                log.info("Aggregation function argument is not a Column Handle. Agg Function = %s, Arguments = %s", aggFunction, arguments);
            }
        }
    }
    // Scan output order is important for partitioned cubes. Otherwise, incorrect results may be produced.
    // Refer: https://gitee.com/openlookeng/hetu-core/issues/I4LAYC
    List<Symbol> scanOutput = new ArrayList<>(cubeScanSymbols);
    scanOutput.sort(Comparator.comparingInt(outSymbol -> cubeColumnsMetadata.indexOf(symbolMetadataMap.get(outSymbol))));
    TableScanNode tableScanNode = TableScanNode.newInstance(idAllocator.getNextId(), cubeTableHandle, scanOutput, symbolAssignments, ReuseExchangeOperator.STRATEGY.REUSE_STRATEGY_DEFAULT, new UUID(0, 0), 0, false);
    return new CubeRewriteResult(tableScanNode, symbolMetadataMap, dimensionSymbols, aggregationColumns, averageAggregationColumns, computeAvgDividingSumByCount);
}

Example 2 with COUNT

use of io.hetu.core.spi.cube.CubeAggregateFunction.COUNT in project hetu-core by openlookeng.

the class AggregationRewriteWithCube method rewrite.

public PlanNode rewrite(AggregationNode originalAggregationNode, PlanNode filterNode) {
    QualifiedObjectName starTreeTableName = QualifiedObjectName.valueOf(cubeMetadata.getCubeName());
    TableHandle cubeTableHandle = metadata.getTableHandle(session, starTreeTableName).orElseThrow(() -> new CubeNotFoundException(starTreeTableName.toString()));
    Map<String, ColumnHandle> cubeColumnsMap = metadata.getColumnHandles(session, cubeTableHandle);
    TableMetadata cubeTableMetadata = metadata.getTableMetadata(session, cubeTableHandle);
    List<ColumnMetadata> cubeColumnMetadataList = cubeTableMetadata.getColumns();
    // Add group by
    List<Symbol> groupings = new ArrayList<>(originalAggregationNode.getGroupingKeys().size());
    for (Symbol symbol : originalAggregationNode.getGroupingKeys()) {
        Object column = symbolMappings.get(symbol.getName());
        if (column instanceof ColumnHandle) {
            groupings.add(new Symbol(((ColumnHandle) column).getColumnName()));
        }
    }
    Set<String> cubeGroups = cubeMetadata.getGroup();
    boolean exactGroupsMatch = false;
    if (groupings.size() == cubeGroups.size()) {
        exactGroupsMatch = groupings.stream().map(Symbol::getName).map(String::toLowerCase).allMatch(cubeGroups::contains);
    }
    CubeRewriteResult cubeRewriteResult = createScanNode(originalAggregationNode, filterNode, cubeTableHandle, cubeColumnsMap, cubeColumnMetadataList, exactGroupsMatch);
    PlanNode planNode = cubeRewriteResult.getTableScanNode();
    // Add filter node
    if (filterNode != null) {
        Expression expression = castToExpression(((FilterNode) filterNode).getPredicate());
        expression = rewriteExpression(expression, rewrittenMappings);
        planNode = new FilterNode(idAllocator.getNextId(), planNode, castToRowExpression(expression));
    }
    if (!exactGroupsMatch) {
        Map<Symbol, Symbol> cubeScanToAggOutputMap = new HashMap<>();
        // Rewrite AggregationNode using Cube table
        ImmutableMap.Builder<Symbol, AggregationNode.Aggregation> aggregationsBuilder = ImmutableMap.builder();
        for (CubeRewriteResult.AggregatorSource aggregatorSource : cubeRewriteResult.getAggregationColumns()) {
            ColumnHandle cubeColHandle = cubeRewriteResult.getTableScanNode().getAssignments().get(aggregatorSource.getScanSymbol());
            ColumnMetadata cubeColumnMetadata = cubeRewriteResult.getSymbolMetadataMap().get(aggregatorSource.getScanSymbol());
            Type type = cubeColumnMetadata.getType();
            AggregationSignature aggregationSignature = cubeMetadata.getAggregationSignature(cubeColumnMetadata.getName()).orElseThrow(() -> new ColumnNotFoundException(new SchemaTableName(starTreeTableName.getSchemaName(), starTreeTableName.getObjectName()), cubeColHandle.getColumnName()));
            String aggFunction = COUNT.getName().equals(aggregationSignature.getFunction()) ? "sum" : aggregationSignature.getFunction();
            SymbolReference argument = toSymbolReference(aggregatorSource.getScanSymbol());
            FunctionHandle functionHandle = metadata.getFunctionAndTypeManager().lookupFunction(aggFunction, TypeSignatureProvider.fromTypeSignatures(type.getTypeSignature()));
            cubeScanToAggOutputMap.put(aggregatorSource.getScanSymbol(), aggregatorSource.getOriginalAggSymbol());
            aggregationsBuilder.put(aggregatorSource.getOriginalAggSymbol(), new AggregationNode.Aggregation(new CallExpression(aggFunction, functionHandle, type, ImmutableList.of(OriginalExpressionUtils.castToRowExpression(argument))), ImmutableList.of(OriginalExpressionUtils.castToRowExpression(argument)), false, Optional.empty(), Optional.empty(), Optional.empty()));
        }
        List<Symbol> groupingKeys = originalAggregationNode.getGroupingKeys().stream().map(Symbol::getName).map(rewrittenMappings::get).collect(Collectors.toList());
        planNode = new AggregationNode(idAllocator.getNextId(), planNode, aggregationsBuilder.build(), singleGroupingSet(groupingKeys), ImmutableList.of(), AggregationNode.Step.SINGLE, Optional.empty(), Optional.empty(), AggregationNode.AggregationType.HASH, Optional.empty());
        AggregationNode aggNode = (AggregationNode) planNode;
        if (!cubeRewriteResult.getAvgAggregationColumns().isEmpty()) {
            if (!cubeRewriteResult.getComputeAvgDividingSumByCount()) {
                Map<Symbol, Expression> aggregateAssignments = new HashMap<>();
                for (CubeRewriteResult.AggregatorSource aggregatorSource : cubeRewriteResult.getAggregationColumns()) {
                    aggregateAssignments.put(aggregatorSource.getOriginalAggSymbol(), toSymbolReference(aggregatorSource.getScanSymbol()));
                }
                planNode = new ProjectNode(idAllocator.getNextId(), aggNode, new Assignments(aggregateAssignments.entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> castToRowExpression(entry.getValue())))));
            } else {
                // If there was an AVG aggregation, map it to AVG = SUM/COUNT
                Map<Symbol, Expression> projections = new HashMap<>();
                aggNode.getGroupingKeys().forEach(symbol -> projections.put(symbol, toSymbolReference(symbol)));
                aggNode.getAggregations().keySet().stream().filter(symbol -> symbolMappings.containsValue(symbol.getName())).forEach(aggSymbol -> projections.put(aggSymbol, toSymbolReference(aggSymbol)));
                // Add AVG = SUM / COUNT
                for (CubeRewriteResult.AverageAggregatorSource avgAggSource : cubeRewriteResult.getAvgAggregationColumns()) {
                    Symbol sumSymbol = cubeScanToAggOutputMap.get(avgAggSource.getSum());
                    Symbol countSymbol = cubeScanToAggOutputMap.get(avgAggSource.getCount());
                    Type avgResultType = typeProvider.get(avgAggSource.getOriginalAggSymbol());
                    ArithmeticBinaryExpression division = new ArithmeticBinaryExpression(ArithmeticBinaryExpression.Operator.DIVIDE, new Cast(toSymbolReference(sumSymbol), avgResultType.getTypeSignature().toString()), new Cast(toSymbolReference(countSymbol), avgResultType.getTypeSignature().toString()));
                    projections.put(avgAggSource.getOriginalAggSymbol(), division);
                }
                planNode = new ProjectNode(idAllocator.getNextId(), aggNode, new Assignments(projections.entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> castToRowExpression(entry.getValue())))));
            }
        }
    }
    // Safety check to remove redundant symbols and rename original column names to intermediate names
    if (!planNode.getOutputSymbols().equals(originalAggregationNode.getOutputSymbols())) {
        // Map new symbol names to the old symbols
        Map<Symbol, Expression> assignments = new HashMap<>();
        Set<Symbol> planNodeOutput = new HashSet<>(planNode.getOutputSymbols());
        for (Symbol originalAggOutputSymbol : originalAggregationNode.getOutputSymbols()) {
            if (!planNodeOutput.contains(originalAggOutputSymbol)) {
                // Must be grouping key
                assignments.put(originalAggOutputSymbol, toSymbolReference(rewrittenMappings.get(originalAggOutputSymbol.getName())));
            } else {
                // Should be an expression and must have the same name in the new plan node
                assignments.put(originalAggOutputSymbol, toSymbolReference(originalAggOutputSymbol));
            }
        }
        planNode = new ProjectNode(idAllocator.getNextId(), planNode, new Assignments(assignments.entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> castToRowExpression(entry.getValue())))));
    }
    return planNode;
}

Example 3 with COUNT

use of io.hetu.core.spi.cube.CubeAggregateFunction.COUNT in project hetu-core by openlookeng.

the class CubeOptimizer method rewriteAggregationNode.

private PlanNode rewriteAggregationNode(CubeRewriteResult cubeRewriteResult, PlanNode inputPlanNode) {
    TypeProvider typeProvider = context.getSymbolAllocator().getTypes();
    // Add group by
    List<Symbol> groupings = aggregationNode.getGroupingKeys().stream().map(Symbol::getName).map(columnRewritesMap::get).map(optimizedPlanMappings::get).collect(Collectors.toList());
    Map<Symbol, Symbol> cubeScanToAggOutputMap = new HashMap<>();
    // Rewrite AggregationNode using Cube table
    ImmutableMap.Builder<Symbol, AggregationNode.Aggregation> aggregationsBuilder = ImmutableMap.builder();
    for (CubeRewriteResult.AggregatorSource aggregatorSource : cubeRewriteResult.getAggregationColumns()) {
        Type type = cubeRewriteResult.getSymbolMetadataMap().get(aggregatorSource.getOriginalAggSymbol()).getType();
        TypeSignature typeSignature = type.getTypeSignature();
        ColumnHandle cubeColHandle = cubeRewriteResult.getTableScanNode().getAssignments().get(aggregatorSource.getScanSymbol());
        ColumnMetadata cubeColumnMetadata = metadata.getColumnMetadata(context.getSession(), cubeTableHandle, cubeColHandle);
        AggregationSignature aggregationSignature = cubeMetadata.getAggregationSignature(cubeColumnMetadata.getName()).orElseThrow(() -> new ColumnNotFoundException(new SchemaTableName("", ""), cubeColHandle.getColumnName()));
        String aggFunction = COUNT.getName().equals(aggregationSignature.getFunction()) ? SUM.getName() : aggregationSignature.getFunction();
        SymbolReference argument = toSymbolReference(aggregatorSource.getScanSymbol());
        FunctionHandle functionHandle = metadata.getFunctionAndTypeManager().lookupFunction(aggFunction, TypeSignatureProvider.fromTypeSignatures(typeSignature));
        cubeScanToAggOutputMap.put(aggregatorSource.getScanSymbol(), aggregatorSource.getOriginalAggSymbol());
        aggregationsBuilder.put(aggregatorSource.getOriginalAggSymbol(), new AggregationNode.Aggregation(new CallExpression(aggFunction, functionHandle, type, ImmutableList.of(castToRowExpression(argument))), ImmutableList.of(castToRowExpression(argument)), false, Optional.empty(), Optional.empty(), Optional.empty()));
    }
    PlanNode planNode = inputPlanNode;
    AggregationNode aggNode = new AggregationNode(context.getIdAllocator().getNextId(), planNode, aggregationsBuilder.build(), singleGroupingSet(groupings), ImmutableList.of(), AggregationNode.Step.SINGLE, Optional.empty(), Optional.empty(), AggregationNode.AggregationType.HASH, Optional.empty());
    if (cubeRewriteResult.getAvgAggregationColumns().isEmpty()) {
        return aggNode;
    }
    if (!cubeRewriteResult.getComputeAvgDividingSumByCount()) {
        Map<Symbol, Expression> aggregateAssignments = new HashMap<>();
        for (CubeRewriteResult.AggregatorSource aggregatorSource : cubeRewriteResult.getAggregationColumns()) {
            aggregateAssignments.put(aggregatorSource.getOriginalAggSymbol(), toSymbolReference(aggregatorSource.getScanSymbol()));
        }
        planNode = new ProjectNode(context.getIdAllocator().getNextId(), aggNode, new Assignments(aggregateAssignments.entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> castToRowExpression(entry.getValue())))));
    } else {
        // If there was an AVG aggregation, map it to AVG = SUM/COUNT
        Map<Symbol, Expression> projections = new HashMap<>();
        aggNode.getGroupingKeys().forEach(symbol -> projections.put(symbol, toSymbolReference(symbol)));
        aggNode.getAggregations().keySet().stream().filter(originalAggregationsMap::containsValue).forEach(aggSymbol -> projections.put(aggSymbol, toSymbolReference(aggSymbol)));
        // Add AVG = SUM / COUNT
        for (CubeRewriteResult.AverageAggregatorSource avgAggSource : cubeRewriteResult.getAvgAggregationColumns()) {
            Symbol sumSymbol = cubeScanToAggOutputMap.get(avgAggSource.getSum());
            Symbol countSymbol = cubeScanToAggOutputMap.get(avgAggSource.getCount());
            Type avgResultType = typeProvider.get(avgAggSource.getOriginalAggSymbol());
            ArithmeticBinaryExpression division = new ArithmeticBinaryExpression(ArithmeticBinaryExpression.Operator.DIVIDE, new Cast(toSymbolReference(sumSymbol), avgResultType.getTypeSignature().toString()), new Cast(toSymbolReference(countSymbol), avgResultType.getTypeSignature().toString()));
            projections.put(avgAggSource.getOriginalAggSymbol(), division);
        }
        return new ProjectNode(context.getIdAllocator().getNextId(), aggNode, new Assignments(projections.entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> castToRowExpression(entry.getValue())))));
    }
    return planNode;
}