presto-spi/src/main/java/io/prestosql/spi/connector/ConnectorMetadata.java/ConnectorMetadata/applyProjection
class ConnectorMetadata:    default Optional<ProjectionApplicationResult<ConnectorTableHandle>> applyProjection(ConnectorSession session, ConnectorTableHandle handle, List<ConnectorExpression> projections, Map<String, ColumnHandle> assignments)
    {
        return Optional.empty();
    }