How to use MultiPartitions and DynamicPartitions together?

[jamiedemaria]

Is it possible to use a DynamicPartitionsDefinitions as one of the dimensions in a MultiPartitionsDefinition?

[jamiedemaria]

yes it is! here is a code sample

from dagster import asset, MultiPartitionsDefinition, DynamicPartitionsDefinition, Definitions, DailyPartitionsDefinition

dynamic_colors = DynamicPartitionsDefinition(name="dynamic_colors")

partitions_def = MultiPartitionsDefinition(
            {
                "time": DailyPartitionsDefinition(start_date="2022-01-01"),
                "color": dynamic_colors,
            }
        )

@asset(
    partitions_def=partitions_def
)
def mutli_dynamic_asset(context):
    partition = context.partition_key.keys_by_dimension
    context.log.info(f"Partition: time: {partition['time']}, color: {partition['color']}")

defs = Definitions(
    assets=[mutli_dynamic_asset]
)

If you run this in the UI, you can add colors to the dynamic partition and successfully materialize the asset

[andkuzmich]

@jamiedemaria, I can't undesrstand how to construct run_requests and dynamic_partitions_requests for the SensorResult to return it from sensor?

[jamiedemaria]

@andkuzmich I opened a separate discussion for this question here #23211