Examples with NullableValue io.prestosql.spi.predicate.NullableValue used on opensource projects

Example 16 with NullableValue

use of io.prestosql.spi.predicate.NullableValue in project hetu-core by openlookeng.

the class ActualProperties method translateRowExpression.

public ActualProperties translateRowExpression(Map<Symbol, RowExpression> assignments, TypeProvider types) {
    Map<Symbol, SymbolReference> inputToOutputSymbol = new HashMap<>();
    for (Map.Entry<Symbol, RowExpression> assignment : assignments.entrySet()) {
        RowExpression expression = assignment.getValue();
        SymbolReference symbolReference = SymbolUtils.toSymbolReference(assignment.getKey());
        if (isExpression(expression)) {
            if (castToExpression(expression) instanceof SymbolReference) {
                inputToOutputSymbol.put(SymbolUtils.from(castToExpression(expression)), symbolReference);
            }
        } else {
            if (expression instanceof VariableReferenceExpression) {
                inputToOutputSymbol.put(new Symbol(((VariableReferenceExpression) expression).getName()), symbolReference);
            }
        }
    }
    Map<Symbol, Partitioning.ArgumentBinding> inputToOutputMappings = inputToOutputSymbol.entrySet().stream().collect(Collectors.toMap(v -> v.getKey(), v -> expressionBinding(v.getValue())));
    Map<Symbol, NullableValue> translatedConstants = new HashMap<>();
    for (Map.Entry<Symbol, NullableValue> entry : constants.entrySet()) {
        if (inputToOutputSymbol.containsKey(entry.getKey())) {
            Symbol symbol = SymbolUtils.from(inputToOutputSymbol.get(entry.getKey()));
            translatedConstants.put(symbol, entry.getValue());
        } else {
            inputToOutputMappings.put(entry.getKey(), constantBinding(entry.getValue()));
        }
    }
    return builder().global(global.translateRowExpression(inputToOutputMappings, assignments, types)).local(LocalProperties.translate(localProperties, symbol -> inputToOutputSymbol.containsKey(symbol) ? Optional.of(SymbolUtils.from(inputToOutputSymbol.get(symbol))) : Optional.empty())).constants(translatedConstants).build();
}

Example 17 with NullableValue

use of io.prestosql.spi.predicate.NullableValue in project hetu-core by openlookeng.

the class LocalExecutionPlanner method plan.

public LocalExecutionPlan plan(TaskContext taskContext, PlanNode plan, TypeProvider types, PartitioningScheme partitioningScheme, StageExecutionDescriptor stageExecutionDescriptor, List<PlanNodeId> partitionedSourceOrder, OutputBuffer outputBuffer, Optional<PlanFragmentId> feederCTEId, Optional<PlanNodeId> feederCTEParentId, Map<String, CommonTableExecutionContext> cteCtx) {
    List<Symbol> outputLayout = partitioningScheme.getOutputLayout();
    if (partitioningScheme.getPartitioning().getHandle().equals(FIXED_BROADCAST_DISTRIBUTION) || partitioningScheme.getPartitioning().getHandle().equals(FIXED_ARBITRARY_DISTRIBUTION) || partitioningScheme.getPartitioning().getHandle().equals(SCALED_WRITER_DISTRIBUTION) || partitioningScheme.getPartitioning().getHandle().equals(SINGLE_DISTRIBUTION) || partitioningScheme.getPartitioning().getHandle().equals(COORDINATOR_DISTRIBUTION)) {
        return plan(taskContext, stageExecutionDescriptor, plan, outputLayout, types, partitionedSourceOrder, outputBuffer, new TaskOutputFactory(outputBuffer), feederCTEId, feederCTEParentId, cteCtx);
    }
    // We can convert the symbols directly into channels, because the root must be a sink and therefore the layout is fixed
    List<Integer> partitionChannels;
    List<Optional<NullableValue>> partitionConstants;
    List<Type> partitionChannelTypes;
    if (partitioningScheme.getHashColumn().isPresent()) {
        partitionChannels = ImmutableList.of(outputLayout.indexOf(partitioningScheme.getHashColumn().get()));
        partitionConstants = ImmutableList.of(Optional.empty());
        partitionChannelTypes = ImmutableList.of(BIGINT);
    } else {
        partitionChannels = partitioningScheme.getPartitioning().getArguments().stream().map(argument -> {
            if (argument.isConstant()) {
                return -1;
            }
            return outputLayout.indexOf(argument.getColumn());
        }).collect(toImmutableList());
        partitionConstants = partitioningScheme.getPartitioning().getArguments().stream().map(argument -> {
            if (argument.isConstant()) {
                return Optional.of(argument.getConstant());
            }
            return Optional.<NullableValue>empty();
        }).collect(toImmutableList());
        partitionChannelTypes = partitioningScheme.getPartitioning().getArguments().stream().map(argument -> {
            if (argument.isConstant()) {
                return argument.getConstant().getType();
            }
            return types.get(argument.getColumn());
        }).collect(toImmutableList());
    }
    PartitionFunction partitionFunction = nodePartitioningManager.getPartitionFunction(taskContext.getSession(), partitioningScheme, partitionChannelTypes);
    OptionalInt nullChannel = OptionalInt.empty();
    Set<Symbol> partitioningColumns = partitioningScheme.getPartitioning().getColumns();
    // partitioningColumns expected to have one column in the normal case, and zero columns when partitioning on a constant
    checkArgument(!partitioningScheme.isReplicateNullsAndAny() || partitioningColumns.size() <= 1);
    if (partitioningScheme.isReplicateNullsAndAny() && partitioningColumns.size() == 1) {
        nullChannel = OptionalInt.of(outputLayout.indexOf(getOnlyElement(partitioningColumns)));
    }
    return plan(taskContext, stageExecutionDescriptor, plan, outputLayout, types, partitionedSourceOrder, outputBuffer, new PartitionedOutputFactory(partitionFunction, partitionChannels, partitionConstants, partitioningScheme.isReplicateNullsAndAny(), nullChannel, outputBuffer, maxPagePartitioningBufferSize), feederCTEId, feederCTEParentId, cteCtx);
}

Example 18 with NullableValue

use of io.prestosql.spi.predicate.NullableValue in project hetu-core by openlookeng.

the class HiveMetadata method getPartitionsSystemTable.

private Optional<SystemTable> getPartitionsSystemTable(ConnectorSession session, SchemaTableName tableName, SchemaTableName sourceTableName) {
    HiveTableHandle sourceTableHandle = getTableHandle(session, sourceTableName);
    if (sourceTableHandle == null) {
        return Optional.empty();
    }
    SchemaTableName schemaTableName = sourceTableHandle.getSchemaTableName();
    Table table = metastore.getTable(new HiveIdentity(session), schemaTableName.getSchemaName(), schemaTableName.getTableName()).orElseThrow(() -> new TableNotFoundException(schemaTableName));
    List<HiveColumnHandle> partitionColumns = sourceTableHandle.getPartitionColumns();
    if (partitionColumns.isEmpty()) {
        return Optional.empty();
    }
    List<Type> partitionColumnTypes = partitionColumns.stream().map(HiveColumnHandle::getTypeSignature).map(typeManager::getType).collect(toImmutableList());
    List<ColumnMetadata> partitionSystemTableColumns = partitionColumns.stream().map(column -> new ColumnMetadata(column.getName(), typeManager.getType(column.getTypeSignature()), column.getComment().orElse(null), column.isHidden())).collect(toImmutableList());
    Map<Integer, HiveColumnHandle> fieldIdToColumnHandle = IntStream.range(0, partitionColumns.size()).boxed().collect(toImmutableMap(identity(), partitionColumns::get));
    return Optional.of(createSystemTable(new ConnectorTableMetadata(tableName, partitionSystemTableColumns), constraint -> {
        TupleDomain<ColumnHandle> targetTupleDomain = constraint.transform(fieldIdToColumnHandle::get);
        Predicate<Map<ColumnHandle, NullableValue>> targetPredicate = convertToPredicate(targetTupleDomain);
        Constraint targetConstraint = new Constraint(targetTupleDomain, targetPredicate);
        Iterable<List<Object>> records = () -> stream(partitionManager.getPartitions(metastore, new HiveIdentity(session), sourceTableHandle, targetConstraint, table).getPartitions()).map(hivePartition -> IntStream.range(0, partitionColumns.size()).mapToObj(fieldIdToColumnHandle::get).map(columnHandle -> hivePartition.getKeys().get(columnHandle).getValue()).collect(toList())).iterator();
        return new InMemoryRecordSet(partitionColumnTypes, records).cursor();
    }));
}

Example 19 with NullableValue

use of io.prestosql.spi.predicate.NullableValue in project hetu-core by openlookeng.

the class HiveMetadata method buildColumnDomain.

private static Domain buildColumnDomain(ColumnHandle column, List<HivePartition> partitions) {
    checkArgument(!partitions.isEmpty(), "partitions cannot be empty");
    boolean hasNull = false;
    List<Object> nonNullValues = new ArrayList<>();
    Type type = null;
    for (HivePartition partition : partitions) {
        NullableValue value = partition.getKeys().get(column);
        if (value == null) {
            throw new PrestoException(HiveErrorCode.HIVE_UNKNOWN_ERROR, format("Partition %s does not have a value for partition column %s", partition, column));
        }
        if (value.isNull()) {
            hasNull = true;
        } else {
            nonNullValues.add(value.getValue());
        }
        if (type == null) {
            type = value.getType();
        }
    }
    if (!nonNullValues.isEmpty()) {
        Domain domain = Domain.multipleValues(type, nonNullValues);
        if (hasNull) {
            return domain.union(Domain.onlyNull(type));
        }
        return domain;
    }
    return Domain.onlyNull(type);
}

Example 20 with NullableValue

use of io.prestosql.spi.predicate.NullableValue in project hetu-core by openlookeng.

the class HivePartitionManager method getPartitions.

public HivePartitionResult getPartitions(SemiTransactionalHiveMetastore metastore, HiveIdentity identity, ConnectorTableHandle tableHandle, Constraint constraint, Table table) {
    HiveTableHandle hiveTableHandle = (HiveTableHandle) tableHandle;
    TupleDomain<ColumnHandle> effectivePredicate = constraint.getSummary().intersect(hiveTableHandle.getEnforcedConstraint());
    SchemaTableName tableName = hiveTableHandle.getSchemaTableName();
    Optional<HiveBucketHandle> hiveBucketHandle = hiveTableHandle.getBucketHandle();
    List<HiveColumnHandle> partitionColumns = hiveTableHandle.getPartitionColumns();
    if (effectivePredicate.isNone()) {
        return new HivePartitionResult(partitionColumns, ImmutableList.of(), none(), none(), none(), hiveBucketHandle, Optional.empty());
    }
    Optional<HiveBucketing.HiveBucketFilter> bucketFilter = HiveBucketing.getHiveBucketFilter(table, effectivePredicate);
    TupleDomain<HiveColumnHandle> compactEffectivePredicate = toCompactTupleDomain(effectivePredicate, domainCompactionThreshold);
    if (partitionColumns.isEmpty()) {
        return new HivePartitionResult(partitionColumns, ImmutableList.of(new HivePartition(tableName)), compactEffectivePredicate, effectivePredicate, all(), hiveBucketHandle, bucketFilter);
    }
    List<Type> partitionTypes = partitionColumns.stream().map(column -> typeManager.getType(column.getTypeSignature())).collect(toList());
    Iterable<HivePartition> partitionsIterable;
    Predicate<Map<ColumnHandle, NullableValue>> predicate = constraint.predicate().orElse(value -> true);
    if (hiveTableHandle.getPartitions().isPresent()) {
        partitionsIterable = hiveTableHandle.getPartitions().get().stream().filter(partition -> partitionMatches(partitionColumns, effectivePredicate, predicate, partition)).collect(toImmutableList());
    } else {
        List<String> partitionNames = getFilteredPartitionNames(metastore, identity, tableName, partitionColumns, effectivePredicate, table);
        partitionsIterable = () -> partitionNames.stream().map(partitionName -> parseValuesAndFilterPartition(tableName, partitionName, partitionColumns, partitionTypes, effectivePredicate, predicate)).filter(Optional::isPresent).map(Optional::get).iterator();
    }
    // All partition key domains will be fully evaluated, so we don't need to include those
    TupleDomain<ColumnHandle> remainingTupleDomain = TupleDomain.withColumnDomains(Maps.filterKeys(effectivePredicate.getDomains().get(), not(Predicates.in(partitionColumns))));
    TupleDomain<ColumnHandle> enforcedTupleDomain = TupleDomain.withColumnDomains(Maps.filterKeys(effectivePredicate.getDomains().get(), Predicates.in(partitionColumns)));
    return new HivePartitionResult(partitionColumns, partitionsIterable, compactEffectivePredicate, remainingTupleDomain, enforcedTupleDomain, hiveBucketHandle, bucketFilter);
}