Examples with LocalProperty io.prestosql.spi.connector.LocalProperty used on opensource projects

Example 1 with LocalProperty

use of io.prestosql.spi.connector.LocalProperty in project hetu-core by openlookeng.

the class TpchMetadata method getTableProperties.

@Override
public ConnectorTableProperties getTableProperties(ConnectorSession session, ConnectorTableHandle table) {
    TpchTableHandle tableHandle = (TpchTableHandle) table;
    Optional<ConnectorTablePartitioning> tablePartitioning = Optional.empty();
    Optional<Set<ColumnHandle>> partitioningColumns = Optional.empty();
    List<LocalProperty<ColumnHandle>> localProperties = ImmutableList.of();
    Map<String, ColumnHandle> columns = getColumnHandles(session, tableHandle);
    if (partitioningEnabled && tableHandle.getTableName().equals(TpchTable.ORDERS.getTableName())) {
        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));
    } else if (partitioningEnabled && tableHandle.getTableName().equals(TpchTable.LINE_ITEM.getTableName())) {
        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));
    }
    return new ConnectorTableProperties(tableHandle.getConstraint(), tablePartitioning, partitioningColumns, Optional.empty(), localProperties);
}

Example 2 with LocalProperty

use of io.prestosql.spi.connector.LocalProperty in project hetu-core by openlookeng.

the class MongoMetadata method getTableProperties.

@Override
public ConnectorTableProperties getTableProperties(ConnectorSession session, ConnectorTableHandle table) {
    MongoTableHandle tableHandle = (MongoTableHandle) table;
    // TODO: sharding key
    Optional<Set<ColumnHandle>> partitioningColumns = Optional.empty();
    ImmutableList.Builder<LocalProperty<ColumnHandle>> localProperties = ImmutableList.builder();
    MongoTable tableInfo = mongoSession.getTable(tableHandle.getSchemaTableName());
    Map<String, ColumnHandle> columns = getColumnHandles(session, tableHandle);
    for (MongoIndex index : tableInfo.getIndexes()) {
        for (MongodbIndexKey key : index.getKeys()) {
            if (!key.getSortOrder().isPresent()) {
                continue;
            }
            if (columns.get(key.getName()) != null) {
                localProperties.add(new SortingProperty<>(columns.get(key.getName()), key.getSortOrder().get()));
            }
        }
    }
    return new ConnectorTableProperties(TupleDomain.all(), Optional.empty(), partitioningColumns, Optional.empty(), localProperties.build());
}