Examples with Analysis io.prestosql.sql.analyzer.Analysis used on opensource projects

Example 1 with Analysis

use of io.prestosql.sql.analyzer.Analysis in project hetu-core by openlookeng.

the class QueryPlanner method planUpdateRowAsInsert.

public UpdateDeleteRelationPlan planUpdateRowAsInsert(Update node) {
    Table table = node.getTable();
    RelationType descriptor = analysis.getOutputDescriptor(table);
    TableHandle handle = analysis.getTableHandle(table);
    ColumnHandle rowIdHandle = analysis.getRowIdHandle(table);
    ColumnMetadata rowIdColumnMetadata = metadata.getColumnMetadata(session, handle, rowIdHandle);
    // add table columns
    ImmutableList.Builder<Symbol> outputSymbols = ImmutableList.builder();
    ImmutableMap.Builder<Symbol, ColumnHandle> columnsBuilder = ImmutableMap.builder();
    ImmutableList.Builder<Field> fields = ImmutableList.builder();
    for (Field field : descriptor.getAllFields()) {
        Symbol symbol = planSymbolAllocator.newSymbol(field);
        outputSymbols.add(symbol);
        columnsBuilder.put(symbol, analysis.getColumn(field));
        fields.add(field);
    }
    // create table scan
    ImmutableMap<Symbol, ColumnHandle> columns = columnsBuilder.build();
    PlanNode tableScan = TableScanNode.newInstance(idAllocator.getNextId(), handle, outputSymbols.build(), columns, ReuseExchangeOperator.STRATEGY.REUSE_STRATEGY_DEFAULT, new UUID(0, 0), 0, true);
    Scope scope = Scope.builder().withRelationType(RelationId.anonymous(), new RelationType(fields.build())).build();
    RelationPlan relationPlan = new RelationPlan(tableScan, scope, outputSymbols.build());
    TranslationMap translations = new TranslationMap(relationPlan, analysis, lambdaDeclarationToSymbolMap);
    translations.setFieldMappings(relationPlan.getFieldMappings());
    PlanBuilder builder = new PlanBuilder(translations, relationPlan.getRoot());
    Optional<RowExpression> predicate = Optional.empty();
    if (node.getWhere().isPresent()) {
        builder = filter(builder, node.getWhere().get(), node);
        if (builder.getRoot() instanceof FilterNode) {
            predicate = Optional.of(((FilterNode) builder.getRoot()).getPredicate());
        }
    }
    List<AssignmentItem> assignmentItems = node.getAssignmentItems();
    Analysis.Update update = analysis.getUpdate().get();
    Assignments.Builder assignments = Assignments.builder();
    TableMetadata tableMetadata = metadata.getTableMetadata(session, update.getTarget());
    Symbol orderBySymbol = null;
    for (Map.Entry<Symbol, ColumnHandle> entry : columns.entrySet()) {
        ColumnMetadata column;
        ColumnHandle columnHandle = entry.getValue();
        Symbol input = entry.getKey();
        if (columnHandle.getColumnName().equals(rowIdHandle.getColumnName())) {
            column = rowIdColumnMetadata;
        } else {
            column = tableMetadata.getColumn(columnHandle.getColumnName());
        }
        if (column != rowIdColumnMetadata && column.isHidden()) {
            continue;
        }
        Symbol output = planSymbolAllocator.newSymbol(column.getName(), column.getType());
        Type tableType = column.getType();
        Type queryType = planSymbolAllocator.getTypes().get(input);
        List<AssignmentItem> assignment = assignmentItems.stream().filter(item -> item.getName().equals(QualifiedName.of(column.getName()))).collect(Collectors.toList());
        if (!assignment.isEmpty()) {
            Expression expression = assignment.get(0).getValue();
            Expression cast;
            if (expression instanceof Identifier) {
                // assigning by column reference
                Optional<Symbol> first = columns.entrySet().stream().filter(e -> e.getValue().getColumnName().equals(((Identifier) expression).getValue())).map(Entry::getKey).findFirst();
                Symbol source = (first.orElseThrow(() -> new IllegalArgumentException("Unable to find column " + ((Identifier) expression).getValue())));
                cast = new Cast(toSymbolReference(source), tableType.getTypeSignature().toString());
            } else {
                cast = new Cast(expression, tableType.getTypeSignature().toString());
            }
            assignments.put(output, castToRowExpression(cast));
        } else if (queryType.equals(tableType) || typeCoercion.isTypeOnlyCoercion(queryType, tableType)) {
            assignments.put(output, castToRowExpression(toSymbolReference(input)));
        } else {
            Expression cast = new Cast(toSymbolReference(input), tableType.getTypeSignature().toString());
            assignments.put(output, castToRowExpression(cast));
        }
        if (column == rowIdColumnMetadata) {
            orderBySymbol = output;
        }
    }
    ProjectNode projectNode = new ProjectNode(idAllocator.getNextId(), builder.getRoot(), assignments.build());
    PlanBuilder planBuilder = new PlanBuilder(translations, projectNode);
    SortOrder sortOrder = SortOrder.ASC_NULLS_LAST;
    Symbol sortSymbol = orderBySymbol;
    Map<Symbol, SortOrder> sortOrderMap = ImmutableMap.<Symbol, SortOrder>builder().put(sortSymbol, sortOrder).build();
    OrderingScheme orderingScheme = new OrderingScheme(ImmutableList.of(sortSymbol), sortOrderMap);
    builder = sort(planBuilder, Optional.of(orderingScheme));
    ImmutableList.Builder<Field> projectFields = ImmutableList.builder();
    projectFields.addAll(fields.build().stream().filter(x -> !x.isHidden()).collect(toImmutableList()));
    scope = Scope.builder().withRelationType(RelationId.anonymous(), new RelationType(projectFields.build())).build();
    RelationPlan plan = new RelationPlan(builder.getRoot(), scope, projectNode.getOutputSymbols());
    List<String> visibleTableColumnNames = tableMetadata.getColumns().stream().filter(c -> !c.isHidden()).map(ColumnMetadata::getName).collect(Collectors.toList());
    visibleTableColumnNames.add(rowIdColumnMetadata.getName());
    return new UpdateDeleteRelationPlan(plan, visibleTableColumnNames, columns, predicate);
}

Example 2 with Analysis

use of io.prestosql.sql.analyzer.Analysis in project hetu-core by openlookeng.

the class QueryPlanner method aggregate.

private PlanBuilder aggregate(PlanBuilder inputSubPlan, QuerySpecification node) {
    PlanBuilder subPlan = inputSubPlan;
    if (!analysis.isAggregation(node)) {
        return subPlan;
    }
    // 1. Pre-project all scalar inputs (arguments and non-trivial group by expressions)
    Set<Expression> groupByExpressions = ImmutableSet.copyOf(analysis.getGroupByExpressions(node));
    ImmutableList.Builder<Expression> arguments = ImmutableList.builder();
    analysis.getAggregates(node).stream().map(FunctionCall::getArguments).flatMap(List::stream).filter(// lambda expression is generated at execution time
    exp -> !(exp instanceof LambdaExpression)).forEach(arguments::add);
    analysis.getAggregates(node).stream().map(FunctionCall::getOrderBy).filter(Optional::isPresent).map(Optional::get).map(OrderBy::getSortItems).flatMap(List::stream).map(SortItem::getSortKey).forEach(arguments::add);
    // filter expressions need to be projected first
    analysis.getAggregates(node).stream().map(FunctionCall::getFilter).filter(Optional::isPresent).map(Optional::get).forEach(arguments::add);
    Iterable<Expression> inputs = Iterables.concat(groupByExpressions, arguments.build());
    subPlan = handleSubqueries(subPlan, node, inputs);
    if (!Iterables.isEmpty(inputs)) {
        // avoid an empty projection if the only aggregation is COUNT (which has no arguments)
        subPlan = project(subPlan, inputs);
    }
    // 2. Aggregate
    // 2.a. Rewrite aggregate arguments
    TranslationMap argumentTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap);
    ImmutableList.Builder<Symbol> aggregationArgumentsBuilder = ImmutableList.builder();
    for (Expression argument : arguments.build()) {
        Symbol symbol = subPlan.translate(argument);
        argumentTranslations.put(argument, symbol);
        aggregationArgumentsBuilder.add(symbol);
    }
    List<Symbol> aggregationArguments = aggregationArgumentsBuilder.build();
    // 2.b. Rewrite grouping columns
    TranslationMap groupingTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap);
    Map<Symbol, Symbol> groupingSetMappings = new LinkedHashMap<>();
    for (Expression expression : groupByExpressions) {
        Symbol input = subPlan.translate(expression);
        Symbol output = planSymbolAllocator.newSymbol(expression, analysis.getTypeWithCoercions(expression), "gid");
        groupingTranslations.put(expression, output);
        groupingSetMappings.put(output, input);
    }
    // This tracks the grouping sets before complex expressions are considered (see comments below)
    // It's also used to compute the descriptors needed to implement grouping()
    List<Set<FieldId>> columnOnlyGroupingSets = ImmutableList.of(ImmutableSet.of());
    List<List<Symbol>> groupingSets = ImmutableList.of(ImmutableList.of());
    if (node.getGroupBy().isPresent()) {
        // For the purpose of "distinct", we need to canonicalize column references that may have varying
        // syntactic forms (e.g., "t.a" vs "a"). Thus we need to enumerate grouping sets based on the underlying
        // fieldId associated with each column reference expression.
        // The catch is that simple group-by expressions can be arbitrary expressions (this is a departure from the SQL specification).
        // But, they don't affect the number of grouping sets or the behavior of "distinct" . We can compute all the candidate
        // grouping sets in terms of fieldId, dedup as appropriate and then cross-join them with the complex expressions.
        Analysis.GroupingSetAnalysis groupingSetAnalysis = analysis.getGroupingSets(node);
        columnOnlyGroupingSets = enumerateGroupingSets(groupingSetAnalysis);
        if (node.getGroupBy().get().isDistinct()) {
            columnOnlyGroupingSets = columnOnlyGroupingSets.stream().distinct().collect(toImmutableList());
        }
        // add in the complex expressions an turn materialize the grouping sets in terms of plan columns
        ImmutableList.Builder<List<Symbol>> groupingSetBuilder = ImmutableList.builder();
        for (Set<FieldId> groupingSet : columnOnlyGroupingSets) {
            ImmutableList.Builder<Symbol> columns = ImmutableList.builder();
            groupingSetAnalysis.getComplexExpressions().stream().map(groupingTranslations::get).forEach(columns::add);
            groupingSet.stream().map(field -> groupingTranslations.get(new FieldReference(field.getFieldIndex()))).forEach(columns::add);
            groupingSetBuilder.add(columns.build());
        }
        groupingSets = groupingSetBuilder.build();
    }
    // 2.c. Generate GroupIdNode (multiple grouping sets) or ProjectNode (single grouping set)
    Optional<Symbol> groupIdSymbol = Optional.empty();
    if (groupingSets.size() > 1) {
        groupIdSymbol = Optional.of(planSymbolAllocator.newSymbol("groupId", BIGINT));
        GroupIdNode groupId = new GroupIdNode(idAllocator.getNextId(), subPlan.getRoot(), groupingSets, groupingSetMappings, aggregationArguments, groupIdSymbol.get());
        subPlan = new PlanBuilder(groupingTranslations, groupId);
    } else {
        Assignments.Builder assignments = Assignments.builder();
        aggregationArguments.forEach(symbol -> assignments.put(symbol, castToRowExpression(toSymbolReference(symbol))));
        groupingSetMappings.forEach((key, value) -> assignments.put(key, castToRowExpression(toSymbolReference(value))));
        ProjectNode project = new ProjectNode(idAllocator.getNextId(), subPlan.getRoot(), assignments.build());
        subPlan = new PlanBuilder(groupingTranslations, project);
    }
    TranslationMap aggregationTranslations = new TranslationMap(subPlan.getRelationPlan(), analysis, lambdaDeclarationToSymbolMap);
    aggregationTranslations.copyMappingsFrom(groupingTranslations);
    // 2.d. Rewrite aggregates
    ImmutableMap.Builder<Symbol, Aggregation> aggregationsBuilder = ImmutableMap.builder();
    boolean needPostProjectionCoercion = false;
    for (FunctionCall aggregate : analysis.getAggregates(node)) {
        Expression rewritten = argumentTranslations.rewrite(aggregate);
        Symbol newSymbol = planSymbolAllocator.newSymbol(rewritten, analysis.getType(aggregate));
        // Therefore we can end up with this implicit cast, and have to move it into a post-projection
        if (rewritten instanceof Cast) {
            rewritten = ((Cast) rewritten).getExpression();
            needPostProjectionCoercion = true;
        }
        aggregationTranslations.put(aggregate, newSymbol);
        FunctionCall functionCall = (FunctionCall) rewritten;
        aggregationsBuilder.put(newSymbol, new Aggregation(call(aggregate.getName().getSuffix(), analysis.getFunctionHandle(aggregate), analysis.getType(aggregate), functionCall.getArguments().stream().map(OriginalExpressionUtils::castToRowExpression).collect(toImmutableList())), functionCall.getArguments().stream().map(OriginalExpressionUtils::castToRowExpression).collect(toImmutableList()), functionCall.isDistinct(), functionCall.getFilter().map(SymbolUtils::from), functionCall.getOrderBy().map(OrderingSchemeUtils::fromOrderBy), Optional.empty()));
    }
    Map<Symbol, Aggregation> aggregations = aggregationsBuilder.build();
    ImmutableSet.Builder<Integer> globalGroupingSets = ImmutableSet.builder();
    for (int i = 0; i < groupingSets.size(); i++) {
        if (groupingSets.get(i).isEmpty()) {
            globalGroupingSets.add(i);
        }
    }
    ImmutableList.Builder<Symbol> groupingKeys = ImmutableList.builder();
    groupingSets.stream().flatMap(List::stream).distinct().forEach(groupingKeys::add);
    groupIdSymbol.ifPresent(groupingKeys::add);
    AggregationNode aggregationNode = new AggregationNode(idAllocator.getNextId(), subPlan.getRoot(), aggregations, groupingSets(groupingKeys.build(), groupingSets.size(), globalGroupingSets.build()), ImmutableList.of(), AggregationNode.Step.SINGLE, Optional.empty(), groupIdSymbol, AggregationNode.AggregationType.HASH, Optional.empty());
    subPlan = new PlanBuilder(aggregationTranslations, aggregationNode);
    // TODO: this is a hack, we should change type coercions to coerce the inputs to functions/operators instead of coercing the output
    if (needPostProjectionCoercion) {
        ImmutableList.Builder<Expression> alreadyCoerced = ImmutableList.builder();
        alreadyCoerced.addAll(groupByExpressions);
        groupIdSymbol.map(SymbolUtils::toSymbolReference).ifPresent(alreadyCoerced::add);
        subPlan = explicitCoercionFields(subPlan, alreadyCoerced.build(), analysis.getAggregates(node));
    }
    // 4. Project and re-write all grouping functions
    return handleGroupingOperations(subPlan, node, groupIdSymbol, columnOnlyGroupingSets);
}

Example 3 with Analysis

use of io.prestosql.sql.analyzer.Analysis in project hetu-core by openlookeng.

the class LogicalPlanner method createInsertPlan.

private RelationPlan createInsertPlan(Analysis analysis, Insert insertStatement) {
    Analysis.Insert insert = analysis.getInsert().get();
    TableMetadata tableMetadata = metadata.getTableMetadata(session, insert.getTarget());
    List<ColumnMetadata> visibleTableColumns = tableMetadata.getColumns().stream().filter(column -> !column.isHidden()).collect(toImmutableList());
    List<String> visibleTableColumnNames = visibleTableColumns.stream().map(ColumnMetadata::getName).collect(toImmutableList());
    RelationPlan plan = createRelationPlan(analysis, insertStatement.getQuery());
    Map<String, ColumnHandle> columns = metadata.getColumnHandles(session, insert.getTarget());
    Assignments.Builder assignments = Assignments.builder();
    for (ColumnMetadata column : tableMetadata.getColumns()) {
        if (column.isHidden()) {
            continue;
        }
        Symbol output = planSymbolAllocator.newSymbol(column.getName(), column.getType());
        int index = insert.getColumns().indexOf(columns.get(column.getName()));
        if (index < 0) {
            Expression cast = new Cast(new NullLiteral(), column.getType().getTypeSignature().toString());
            assignments.put(output, castToRowExpression(cast));
        } else {
            Symbol input = plan.getSymbol(index);
            Type tableType = column.getType();
            Type queryType = planSymbolAllocator.getTypes().get(input);
            if (queryType.equals(tableType) || typeCoercion.isTypeOnlyCoercion(queryType, tableType)) {
                assignments.put(output, castToRowExpression(toSymbolReference(input)));
            } else {
                Expression cast = noTruncationCast(toSymbolReference(input), queryType, tableType);
                assignments.put(output, castToRowExpression(cast));
            }
        }
    }
    ProjectNode projectNode = new ProjectNode(idAllocator.getNextId(), plan.getRoot(), assignments.build());
    List<Field> fields = visibleTableColumns.stream().map(column -> Field.newUnqualified(column.getName(), column.getType())).collect(toImmutableList());
    Scope scope = Scope.builder().withRelationType(RelationId.anonymous(), new RelationType(fields)).build();
    plan = new RelationPlan(projectNode, scope, projectNode.getOutputSymbols());
    Optional<NewTableLayout> newTableLayout = metadata.getInsertLayout(session, insert.getTarget());
    String catalogName = insert.getTarget().getCatalogName().getCatalogName();
    TableStatisticsMetadata statisticsMetadata = metadata.getStatisticsCollectionMetadataForWrite(session, catalogName, tableMetadata.getMetadata());
    return createTableWriterPlan(analysis, plan, new InsertReference(insert.getTarget(), analysis.isInsertOverwrite()), visibleTableColumnNames, newTableLayout, statisticsMetadata);
}

Example 4 with Analysis

use of io.prestosql.sql.analyzer.Analysis in project hetu-core by openlookeng.

the class LogicalPlanner method createInsertCubePlan.

private RelationPlan createInsertCubePlan(Analysis analysis, InsertCube insertCubeStatement) {
    Analysis.CubeInsert insert = analysis.getCubeInsert().get();
    TableMetadata tableMetadata = metadata.getTableMetadata(session, insert.getTarget());
    List<ColumnMetadata> visibleTableColumns = tableMetadata.getColumns().stream().filter(column -> !column.isHidden()).collect(toImmutableList());
    List<String> visibleTableColumnNames = visibleTableColumns.stream().map(ColumnMetadata::getName).collect(toImmutableList());
    RelationPlan plan = createRelationPlan(analysis, insertCubeStatement.getQuery());
    Map<String, ColumnHandle> columns = metadata.getColumnHandles(session, insert.getTarget());
    Assignments.Builder assignments = Assignments.builder();
    for (ColumnMetadata column : tableMetadata.getColumns()) {
        if (column.isHidden()) {
            continue;
        }
        Symbol output = planSymbolAllocator.newSymbol(column.getName(), column.getType());
        int index = insert.getColumns().indexOf(columns.get(column.getName()));
        if (index < 0) {
            Expression cast = new Cast(new NullLiteral(), column.getType().getTypeSignature().toString());
            assignments.put(output, castToRowExpression(cast));
        } else {
            Symbol input = plan.getSymbol(index);
            Type tableType = column.getType();
            Type queryType = planSymbolAllocator.getTypes().get(input);
            if (queryType.equals(tableType) || typeCoercion.isTypeOnlyCoercion(queryType, tableType)) {
                assignments.put(output, castToRowExpression(toSymbolReference(input)));
            } else {
                Expression cast = noTruncationCast(toSymbolReference(input), queryType, tableType);
                assignments.put(output, castToRowExpression(cast));
            }
        }
    }
    ProjectNode projectNode = new ProjectNode(idAllocator.getNextId(), plan.getRoot(), assignments.build());
    List<Field> fields = visibleTableColumns.stream().map(column -> Field.newUnqualified(column.getName(), column.getType())).collect(toImmutableList());
    Scope scope = Scope.builder().withRelationType(RelationId.anonymous(), new RelationType(fields)).build();
    plan = new RelationPlan(projectNode, scope, projectNode.getOutputSymbols());
    Optional<NewTableLayout> newTableLayout = metadata.getInsertLayout(session, insert.getTarget());
    String catalogName = insert.getTarget().getCatalogName().getCatalogName();
    TableStatisticsMetadata statisticsMetadata = metadata.getStatisticsCollectionMetadataForWrite(session, catalogName, tableMetadata.getMetadata());
    RelationPlan tableWriterPlan = createTableWriterPlan(analysis, plan, new InsertReference(insert.getTarget(), analysis.isCubeOverwrite()), visibleTableColumnNames, newTableLayout, statisticsMetadata);
    Expression rewritten = null;
    Set<Identifier> predicateColumns = new HashSet<>();
    if (insertCubeStatement.getWhere().isPresent()) {
        rewritten = new QueryPlanner(analysis, planSymbolAllocator, idAllocator, buildLambdaDeclarationToSymbolMap(analysis, planSymbolAllocator), metadata, session, namedSubPlan, uniqueIdAllocator).rewriteExpression(tableWriterPlan, insertCubeStatement.getWhere().get(), analysis, buildLambdaDeclarationToSymbolMap(analysis, planSymbolAllocator));
        predicateColumns.addAll(ExpressionUtils.getIdentifiers(rewritten));
    }
    CubeMetadata cubeMetadata = insert.getMetadata();
    if (!insertCubeStatement.isOverwrite() && !insertCubeStatement.getWhere().isPresent() && cubeMetadata.getCubeStatus() != CubeStatus.INACTIVE) {
        // Means data some data was inserted before, but trying to insert entire dataset
        throw new PrestoException(QUERY_REJECTED, "Cannot allow insert. Inserting entire dataset but cube already has partial data");
    } else if (insertCubeStatement.getWhere().isPresent()) {
        if (!canSupportPredicate(rewritten)) {
            throw new PrestoException(QUERY_REJECTED, String.format("Cannot support predicate '%s'", ExpressionFormatter.formatExpression(rewritten, Optional.empty())));
        }
        if (!insertCubeStatement.isOverwrite() && arePredicatesOverlapping(rewritten, cubeMetadata)) {
            throw new PrestoException(QUERY_REJECTED, String.format("Cannot allow insert. Cube already contains data for the given predicate '%s'", ExpressionFormatter.formatExpression(insertCubeStatement.getWhere().get(), Optional.empty())));
        }
    }
    TableHandle sourceTableHandle = insert.getSourceTable();
    // At this point it has been verified that source table has not been updated
    // so insert into cube should be allowed
    LongSupplier tableLastModifiedTimeSupplier = metadata.getTableLastModifiedTimeSupplier(session, sourceTableHandle);
    checkState(tableLastModifiedTimeSupplier != null, "Table last modified time is null");
    Map<Symbol, Type> predicateColumnsType = predicateColumns.stream().map(identifier -> new Symbol(identifier.getValue())).collect(Collectors.toMap(Function.identity(), symbol -> planSymbolAllocator.getTypes().get(symbol), (key1, ignored) -> key1));
    CubeFinishNode cubeFinishNode = new CubeFinishNode(idAllocator.getNextId(), tableWriterPlan.getRoot(), planSymbolAllocator.newSymbol("rows", BIGINT), new CubeUpdateMetadata(tableMetadata.getQualifiedName().toString(), tableLastModifiedTimeSupplier.getAsLong(), rewritten != null ? ExpressionFormatter.formatExpression(rewritten, Optional.empty()) : null, insertCubeStatement.isOverwrite()), predicateColumnsType);
    return new RelationPlan(cubeFinishNode, analysis.getScope(insertCubeStatement), cubeFinishNode.getOutputSymbols());
}

Example 5 with Analysis

use of io.prestosql.sql.analyzer.Analysis in project hetu-core by openlookeng.

the class CreateCubeTask method internalExecute.

@VisibleForTesting
public ListenableFuture<?> internalExecute(CreateCube statement, Metadata metadata, AccessControl accessControl, Session session, QueryStateMachine stateMachine, List<Expression> parameters) {
    Optional<CubeMetaStore> optionalCubeMetaStore = cubeManager.getMetaStore(STAR_TREE);
    if (!optionalCubeMetaStore.isPresent()) {
        throw new RuntimeException("HetuMetaStore is not initialized");
    }
    QualifiedObjectName cubeName = createQualifiedObjectName(session, statement, statement.getCubeName());
    QualifiedObjectName tableName = createQualifiedObjectName(session, statement, statement.getSourceTableName());
    Optional<TableHandle> cubeHandle = metadata.getTableHandle(session, cubeName);
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, tableName);
    if (optionalCubeMetaStore.get().getMetadataFromCubeName(cubeName.toString()).isPresent()) {
        if (!statement.isNotExists()) {
            throw new SemanticException(CUBE_ALREADY_EXISTS, statement, "Cube '%s' already exists", cubeName);
        }
        return immediateFuture(null);
    }
    if (cubeHandle.isPresent()) {
        if (!statement.isNotExists()) {
            throw new SemanticException(CUBE_OR_TABLE_ALREADY_EXISTS, statement, "Cube or Table '%s' already exists", cubeName);
        }
        return immediateFuture(null);
    }
    CatalogName catalogName = metadata.getCatalogHandle(session, cubeName.getCatalogName()).orElseThrow(() -> new PrestoException(NOT_FOUND, "Catalog not found: " + cubeName.getCatalogName()));
    if (!metadata.isPreAggregationSupported(session, catalogName)) {
        throw new PrestoException(StandardErrorCode.NOT_SUPPORTED, String.format("Cube cannot be created on catalog '%s'", catalogName.toString()));
    }
    if (!tableHandle.isPresent()) {
        throw new SemanticException(MISSING_TABLE, statement, "Table '%s' does not exist", tableName);
    }
    TableMetadata tableMetadata = metadata.getTableMetadata(session, tableHandle.get());
    List<String> groupingSet = statement.getGroupingSet().stream().map(s -> s.getValue().toLowerCase(ENGLISH)).collect(Collectors.toList());
    Map<String, ColumnMetadata> sourceTableColumns = tableMetadata.getColumns().stream().collect(Collectors.toMap(ColumnMetadata::getName, col -> col));
    List<ColumnMetadata> cubeColumns = new ArrayList<>();
    Map<String, AggregationSignature> aggregations = new HashMap<>();
    Analysis analysis = analyzeStatement(statement, session, metadata, accessControl, parameters, stateMachine.getWarningCollector());
    Map<String, Field> fields = analysis.getOutputDescriptor().getAllFields().stream().collect(Collectors.toMap(col -> col.getName().map(String::toLowerCase).get(), col -> col));
    for (FunctionCall aggFunction : statement.getAggregations()) {
        String aggFunctionName = aggFunction.getName().toString().toLowerCase(ENGLISH);
        String argument = aggFunction.getArguments().isEmpty() || aggFunction.getArguments().get(0) instanceof LongLiteral ? null : ((Identifier) aggFunction.getArguments().get(0)).getValue().toLowerCase(ENGLISH);
        boolean distinct = aggFunction.isDistinct();
        String cubeColumnName = aggFunctionName + "_" + (argument == null ? "all" : argument) + (aggFunction.isDistinct() ? "_distinct" : "");
        CubeAggregateFunction cubeAggregateFunction = CubeAggregateFunction.valueOf(aggFunctionName.toUpperCase(ENGLISH));
        switch(cubeAggregateFunction) {
            case SUM:
                aggregations.put(cubeColumnName, AggregationSignature.sum(argument, distinct));
                break;
            case COUNT:
                AggregationSignature aggregationSignature = argument == null ? AggregationSignature.count() : AggregationSignature.count(argument, distinct);
                aggregations.put(cubeColumnName, aggregationSignature);
                break;
            case AVG:
                aggregations.put(cubeColumnName, AggregationSignature.avg(argument, distinct));
                break;
            case MAX:
                aggregations.put(cubeColumnName, AggregationSignature.max(argument, distinct));
                break;
            case MIN:
                aggregations.put(cubeColumnName, AggregationSignature.min(argument, distinct));
                break;
            default:
                throw new PrestoException(NOT_SUPPORTED, format("Unsupported aggregation function : %s", aggFunctionName));
        }
        Field tableField = fields.get(cubeColumnName);
        ColumnMetadata cubeCol = new ColumnMetadata(cubeColumnName, tableField.getType(), true, null, null, false, Collections.emptyMap());
        cubeColumns.add(cubeCol);
    }
    accessControl.checkCanCreateTable(session.getRequiredTransactionId(), session.getIdentity(), tableName);
    Map<String, Expression> sqlProperties = mapFromProperties(statement.getProperties());
    Map<String, Object> properties = metadata.getTablePropertyManager().getProperties(catalogName, cubeName.getCatalogName(), sqlProperties, session, metadata, parameters);
    if (properties.containsKey("partitioned_by")) {
        List<String> partitionCols = new ArrayList<>(((List<String>) properties.get("partitioned_by")));
        // put all partition columns at the end of the list
        groupingSet.removeAll(partitionCols);
        groupingSet.addAll(partitionCols);
    }
    for (String dimension : groupingSet) {
        if (!sourceTableColumns.containsKey(dimension)) {
            throw new SemanticException(MISSING_COLUMN, statement, "Column %s does not exist", dimension);
        }
        ColumnMetadata tableCol = sourceTableColumns.get(dimension);
        ColumnMetadata cubeCol = new ColumnMetadata(dimension, tableCol.getType(), tableCol.isNullable(), null, null, false, tableCol.getProperties());
        cubeColumns.add(cubeCol);
    }
    ConnectorTableMetadata cubeTableMetadata = new ConnectorTableMetadata(cubeName.asSchemaTableName(), ImmutableList.copyOf(cubeColumns), properties);
    try {
        metadata.createTable(session, cubeName.getCatalogName(), cubeTableMetadata, statement.isNotExists());
    } catch (PrestoException e) {
        // connectors are not required to handle the ignoreExisting flag
        if (!e.getErrorCode().equals(ALREADY_EXISTS.toErrorCode()) || !statement.isNotExists()) {
            throw e;
        }
    }
    CubeMetadataBuilder builder = optionalCubeMetaStore.get().getBuilder(cubeName.toString(), tableName.toString());
    groupingSet.forEach(dimension -> builder.addDimensionColumn(dimension, dimension));
    aggregations.forEach((column, aggregationSignature) -> builder.addAggregationColumn(column, aggregationSignature.getFunction(), aggregationSignature.getDimension(), aggregationSignature.isDistinct()));
    builder.addGroup(new HashSet<>(groupingSet));
    // Status and Table modified time will be updated on the first insert into the cube
    builder.setCubeStatus(CubeStatus.INACTIVE);
    builder.setTableLastUpdatedTime(-1L);
    statement.getSourceFilter().ifPresent(sourceTablePredicate -> {
        sourceTablePredicate = Coercer.addCoercions(sourceTablePredicate, analysis);
        builder.withCubeFilter(new CubeFilter(ExpressionFormatter.formatExpression(sourceTablePredicate, Optional.empty())));
    });
    builder.setCubeLastUpdatedTime(System.currentTimeMillis());
    optionalCubeMetaStore.get().persist(builder.build());
    return immediateFuture(null);
}