Examples of com.facebook.presto.spi.Domain

com.facebook.presto.spi.Domain
Defines the possible values of a single variable in terms of its valid scalar ranges and nullability. For example: Domain.none() => no scalar values allowed, NULL not allowed Domain.all() => all scalar values allowed, NULL allowed Domain.onlyNull() => no scalar values allowed, NULL allowed Domain.notNull() => all scalar values allowed, NULL not allowed

                    case LESS_THAN_OR_EQUAL:
                    case NOT_EQUAL:
                        return new ExtractionResult(TupleDomain.none(), TRUE_LITERAL);


                    case IS_DISTINCT_FROM:
                        Domain domain = complementIfNecessary(Domain.notNull(columnType.getNativeType()), complement);
                        return new ExtractionResult(
                                TupleDomain.withColumnDomains(ImmutableMap.<ColumnHandle, Domain>of(columnHandle, domain)),
                                TRUE_LITERAL);


                    default:
                        throw new AssertionError("Unhandled type: " + comparisonType);
                }
            }


            Domain domain;
            switch (comparisonType) {
                case EQUAL:
                    domain = Domain.create(complementIfNecessary(SortedRangeSet.of(Range.equal(value)), complement), false);
                    break;
                case GREATER_THAN:

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            Symbol symbol = Symbol.fromQualifiedName(((QualifiedNameReference) node.getValue()).getName());
            ColumnType columnType = checkedTypeLookup(symbol);
            ColumnHandle columnHandle = checkedColumnHandleLookup(symbol);


            Domain domain = complementIfNecessary(Domain.onlyNull(columnType.getNativeType()), complement);
            return new ExtractionResult(
                    TupleDomain.withColumnDomains(ImmutableMap.<ColumnHandle, Domain>of(columnHandle, domain)),
                    TRUE_LITERAL);
        }

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            Symbol symbol = Symbol.fromQualifiedName(((QualifiedNameReference) node.getValue()).getName());
            ColumnType columnType = checkedTypeLookup(symbol);
            ColumnHandle columnHandle = checkedColumnHandleLookup(symbol);


            Domain domain = complementIfNecessary(Domain.notNull(columnType.getNativeType()), complement);
            return new ExtractionResult(
                    TupleDomain.withColumnDomains(ImmutableMap.<ColumnHandle, Domain>of(columnHandle, domain)),
                    TRUE_LITERAL);
        }

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        assertNotNull(tableHandle);


        ConnectorColumnHandle dsColumn = metadata.getColumnHandles(tableHandle).get("ds");
        assertNotNull(dsColumn);


        Domain domain = Domain.singleValue(utf8Slice("2012-12-30"));
        TupleDomain<ConnectorColumnHandle> tupleDomain = TupleDomain.withColumnDomains(ImmutableMap.of(dsColumn, domain));
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, tupleDomain);
        for (ConnectorPartition partition : partitionResult.getPartitions()) {
            if (domain.equals(partition.getTupleDomain().getDomains().get(dsColumn))) {
                try {
                    getSplitCount(splitManager.getPartitionSplits(tableHandle, ImmutableList.of(partition)));
                    fail("Expected PartitionOfflineException");
                }
                catch (PartitionOfflineException e) {

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        assertNotNull(tableHandle);


        ConnectorColumnHandle dsColumn = metadata.getColumnHandle(tableHandle, "ds");
        assertNotNull(dsColumn);


        Domain domain = Domain.singleValue(utf8Slice("2012-12-30"));
        TupleDomain<ConnectorColumnHandle> tupleDomain = TupleDomain.withColumnDomains(ImmutableMap.of(dsColumn, domain));
        ConnectorPartitionResult partitionResult = splitManager.getPartitions(tableHandle, tupleDomain);
        for (ConnectorPartition partition : partitionResult.getPartitions()) {
            if (domain.equals(partition.getTupleDomain().getDomains().get(dsColumn))) {
                try {
                    getSplitCount(splitManager.getPartitionSplits(tableHandle, ImmutableList.of(partition)));
                    fail("Expected PartitionOfflineException");
                }
                catch (PartitionOfflineException e) {

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            HiveColumnHandle columnHandle = new HiveColumnHandle(connectorId, field.getName(), i, getSupportedHiveType(field.getType()), -1, true);
            partitionKeysByNameBuilder.put(field.getName(), columnHandle);


            // only add to prefix if all previous keys have a value
            if (filterPrefix.size() == i && !tupleDomain.isNone()) {
                Domain domain = tupleDomain.getDomains().get(columnHandle);
                if (domain != null && domain.getRanges().getRangeCount() == 1) {
                    // We intentionally ignore whether NULL is in the domain since partition keys can never be NULL
                    Range range = Iterables.getOnlyElement(domain.getRanges());
                    if (range.isSingleValue()) {
                        Comparable<?> value = range.getLow().getValue();
                        checkArgument(value instanceof Boolean || value instanceof Slice || value instanceof Double || value instanceof Long,
                                "Only Boolean, Slice (UTF8 String), Double and Long partition keys are supported");
                        if (value instanceof Slice) {

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            {
                if (tupleDomain.isNone()) {
                    return false;
                }
                for (Entry<ConnectorColumnHandle, Comparable<?>> entry : partition.getKeys().entrySet()) {
                    Domain allowedDomain = tupleDomain.getDomains().get(entry.getKey());
                    if (allowedDomain != null && !allowedDomain.includesValue(entry.getValue())) {
                        return false;
                    }
                }
                return true;
            }

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            List<ConnectorColumnHandle> indexedColumns = Lists.newArrayList();
            // compose partitionId by using indexed column
            StringBuilder sb = new StringBuilder();
            for (Map.Entry<ConnectorColumnHandle, Domain> entry : domains.entrySet()) {
                CassandraColumnHandle column = (CassandraColumnHandle) entry.getKey();
                Domain domain = entry.getValue();
                if (column.isIndexed() && domain.isSingleValue()) {
                    sb.append(CassandraCqlUtils.validColumnName(column.getName()))
                      .append(" = ")
                      .append(CassandraCqlUtils.cqlValue(toCQLCompatibleString(entry.getValue().getSingleValue()), column.getCassandraType()));
                    indexedColumns.add(column);
                    // Only one indexed column predicate can be pushed down.

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    private static Set<List<Comparable<?>>> getPartitionKeysSet(CassandraTable table, TupleDomain<ConnectorColumnHandle> tupleDomain)
    {
        ImmutableList.Builder<Set<Comparable<?>>> partitionColumnValues = ImmutableList.builder();
        for (CassandraColumnHandle columnHandle : table.getPartitionKeyColumns()) {
            Domain domain = tupleDomain.getDomains().get(columnHandle);


            // if there is no constraint on a partition key, return an empty set
            if (domain == null) {
                return ImmutableSet.of();
            }


            // todo does cassandra allow null partition keys?
            if (domain.isNullAllowed()) {
                return ImmutableSet.of();
            }


            ImmutableSet.Builder<Comparable<?>> columnValues = ImmutableSet.builder();
            for (Range range : domain.getRanges()) {
                // if the range is not a single value, we can not perform partition pruning
                if (!range.isSingleValue()) {
                    return ImmutableSet.of();
                }
                Comparable<?> value = range.getSingleValue();

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            HiveColumnHandle columnHandle = new HiveColumnHandle(connectorId, field.getName(), i, getSupportedHiveType(field.getType()), -1, true);
            partitionKeysByNameBuilder.put(field.getName(), columnHandle);


            // only add to prefix if all previous keys have a value
            if (filterPrefix.size() == i && !tupleDomain.isNone()) {
                Domain domain = tupleDomain.getDomains().get(columnHandle);
                if (domain != null && domain.getRanges().getRangeCount() == 1) {
                    // We intentionally ignore whether NULL is in the domain since partition keys can never be NULL
                    Range range = Iterables.getOnlyElement(domain.getRanges());
                    if (range.isSingleValue()) {
                        Comparable<?> value = range.getLow().getValue();
                        checkArgument(value instanceof Boolean || value instanceof String || value instanceof Double || value instanceof Long,
                                "Only Boolean, String, Double and Long partition keys are supported");
                        filterPrefix.add(value.toString());

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