Examples with SortingProperty com.facebook.presto.spi.SortingProperty used on opensource projects

Example 1 with SortingProperty

use of com.facebook.presto.spi.SortingProperty in project presto by prestodb.

the class TestLocalProperties method testJsonSerialization.

@Test
public void testJsonSerialization() throws Exception {
    ObjectMapper mapper = new JsonObjectMapperProvider().get().registerModule(new SimpleModule().addDeserializer(ColumnHandle.class, new JsonDeserializer<ColumnHandle>() {

        @Override
        public ColumnHandle deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
            return new JsonObjectMapperProvider().get().readValue(jsonParser, TestingColumnHandle.class);
        }
    }));
    TestingColumnHandle columnHandle = new TestingColumnHandle("a");
    LocalProperty<ColumnHandle> property1 = new ConstantProperty<>(columnHandle);
    assertEquals(property1, mapper.readValue(mapper.writeValueAsString(property1), new TypeReference<LocalProperty<ColumnHandle>>() {
    }));
    LocalProperty<ColumnHandle> property2 = new SortingProperty<>(columnHandle, SortOrder.ASC_NULLS_FIRST);
    assertEquals(property2, mapper.readValue(mapper.writeValueAsString(property2), new TypeReference<LocalProperty<ColumnHandle>>() {
    }));
    LocalProperty<ColumnHandle> property3 = new GroupingProperty<>(ImmutableList.of(columnHandle));
    assertEquals(property3, mapper.readValue(mapper.writeValueAsString(property3), new TypeReference<LocalProperty<ColumnHandle>>() {
    }));
}

Example 2 with SortingProperty

use of com.facebook.presto.spi.SortingProperty in project presto by prestodb.

the class TpchMetadata method getTableLayouts.

@Override
public List<ConnectorTableLayoutResult> getTableLayouts(ConnectorSession session, ConnectorTableHandle table, Constraint<ColumnHandle> constraint, Optional<Set<ColumnHandle>> desiredColumns) {
    TpchTableHandle tableHandle = (TpchTableHandle) table;
    Optional<ConnectorTablePartitioning> tablePartitioning = Optional.empty();
    Optional<Set<ColumnHandle>> partitioningColumns = Optional.empty();
    List<LocalProperty<ColumnHandle>> localProperties = ImmutableList.of();
    TupleDomain<ColumnHandle> predicate = TupleDomain.all();
    TupleDomain<ColumnHandle> unenforcedConstraint = constraint.getSummary();
    Map<String, ColumnHandle> columns = getColumnHandles(session, tableHandle);
    if (tableHandle.getTableName().equals(TpchTable.ORDERS.getTableName())) {
        if (partitioningEnabled) {
            ColumnHandle orderKeyColumn = columns.get(columnNaming.getName(OrderColumn.ORDER_KEY));
            tablePartitioning = Optional.of(new ConnectorTablePartitioning(new TpchPartitioningHandle(TpchTable.ORDERS.getTableName(), calculateTotalRows(OrderGenerator.SCALE_BASE, tableHandle.getScaleFactor())), ImmutableList.of(orderKeyColumn)));
            partitioningColumns = Optional.of(ImmutableSet.of(orderKeyColumn));
            localProperties = ImmutableList.of(new SortingProperty<>(orderKeyColumn, SortOrder.ASC_NULLS_FIRST));
        }
        if (predicatePushdownEnabled) {
            predicate = toTupleDomain(ImmutableMap.of(toColumnHandle(OrderColumn.ORDER_STATUS), filterValues(ORDER_STATUS_NULLABLE_VALUES, OrderColumn.ORDER_STATUS, constraint)));
            unenforcedConstraint = filterOutColumnFromPredicate(constraint.getSummary(), toColumnHandle(OrderColumn.ORDER_STATUS));
        }
    } else if (predicatePushdownEnabled && tableHandle.getTableName().equals(TpchTable.PART.getTableName())) {
        predicate = toTupleDomain(ImmutableMap.of(toColumnHandle(PartColumn.CONTAINER), filterValues(PART_CONTAINER_NULLABLE_VALUES, PartColumn.CONTAINER, constraint), toColumnHandle(PartColumn.TYPE), filterValues(PART_TYPE_NULLABLE_VALUES, PartColumn.TYPE, constraint)));
        unenforcedConstraint = filterOutColumnFromPredicate(constraint.getSummary(), toColumnHandle(PartColumn.CONTAINER));
        unenforcedConstraint = filterOutColumnFromPredicate(unenforcedConstraint, toColumnHandle(PartColumn.TYPE));
    } else if (tableHandle.getTableName().equals(TpchTable.LINE_ITEM.getTableName())) {
        if (partitioningEnabled) {
            ColumnHandle orderKeyColumn = columns.get(columnNaming.getName(LineItemColumn.ORDER_KEY));
            tablePartitioning = Optional.of(new ConnectorTablePartitioning(new TpchPartitioningHandle(TpchTable.ORDERS.getTableName(), calculateTotalRows(OrderGenerator.SCALE_BASE, tableHandle.getScaleFactor())), ImmutableList.of(orderKeyColumn)));
            partitioningColumns = Optional.of(ImmutableSet.of(orderKeyColumn));
            localProperties = ImmutableList.of(new SortingProperty<>(orderKeyColumn, SortOrder.ASC_NULLS_FIRST), new SortingProperty<>(columns.get(columnNaming.getName(LineItemColumn.LINE_NUMBER)), SortOrder.ASC_NULLS_FIRST));
        }
    }
    ConnectorTableLayout layout = new ConnectorTableLayout(new TpchTableLayoutHandle(tableHandle, predicate), Optional.empty(), // TODO: conditionally return well-known properties (e.g., orderkey > 0, etc)
    predicate, tablePartitioning, partitioningColumns, Optional.empty(), localProperties);
    return ImmutableList.of(new ConnectorTableLayoutResult(layout, unenforcedConstraint));
}