How can partition dependencies https://dagster.slack.com/archives/C02LJ7G0LAZ/p1671645522498899?thread_ts=1671232829.834029&cid=C02LJ7G0LAZ be pushed to the IO manager or referenced there? It is pretty clear to me how to get access to these handles in the Asset - but as mentioned there if the SCD MERGE into is handled by the IO manager how can I push the reference of the previous day over to it? Is a custom data type required (dict) which pushes both current_partition + previous_partition over to the IO manager? Or is there a more straight forward approach available?

Hey @geoHeil - you can use

context.step_context.asset_partition_key_for_input

- would that work for you?

indeed - this should work so if the current partition key would be 3 and the asset_partition_key_for_input lagged by 1 should be 2 and 2 is returned then it should work

that's correct

I cannot see any references to the

partition_mapping=TimeWindowPartitionMapping(start_offset=-1, end_offset=-1),

in dagit. Is this intentional? Or do I still have an issue somewhere?

Those are not currently represented in Dagit

do you have any plans to do so?

We would like to, but it's not at the top of our current priority list. Would you be up for filing a Github issue? We can use it to track demand.