smallpond.logical.node.DataSourceNode#
- class smallpond.logical.node.DataSourceNode(ctx: Context, dataset: DataSet)#
All inputs of a logical plan are represented as DataSourceNode. It does not depend on any other node.
- __init__(ctx: Context, dataset: DataSet) None#
Construct a DataSourceNode. See
Node.__init__()to find comments on other parameters.Parameters#
- dataset
A DataSet instance serving as a input of the plan. Set to None to create a dummy data source.
Methods
__init__(ctx, dataset)Construct a DataSourceNode.
add_perf_metrics(name, value)create_task(*args, **kwargs)get_perf_stats(name)slim_copy()task_factory(task_builder)Attributes
enable_resource_boostnum_partitions