Hey wave Can we pass a `DynamicOutput` to a `composite solid

Question

Hey wave Can we pass a `DynamicOutput` to a `composite solid` My pipeline works fine when I pass the `DynamicOutput` to a single `solid` but I would like the ` map ` to execute more than one solid with the general flow being 1 Fetch a list of IDs from the database unknown before execution time 2 For each query an API build a dataframe output to database But I m getting the following error when I package step 2 as a `composite solid` ```dagster core errors DagsterSubprocessError dagster check CheckError Member of list mismatches type Expected lt class dagster core execution plan inputs StepInput gt Got UnresolvedStepInput name= id dagster type key= Int source=FromPendingDynamicStepOutput step output handle=StepOutputHandle step key= query records output name= id mapping key=None solid handle=SolidHandle name= do multiple steps parent=None input name= id of type lt class dagster core execution plan inputs UnresolvedStepInput gt ```

Charles Lariviere · Answer

I ve structured my `composite solid` as follows ``` composite solid input defs= InputDefinition id int def do multiple steps id output = do something id rows = do something else output ``` And my `DynamicOutput` as follows ``` solid output defs= DynamicOutputDefinition int name= id def query records results = query database for id in results yield DynamicOutput values=id mapping key=str id output name= id ``` With the pipeline being defined as follows ``` pipeline def my pipeline query records map do multiple steps ```

alex · Answer

based on the error this looks like a real bug thanks for the report

Charles Lariviere · Answer

Sounds good thanks < alex>

alex · Answer

fix should go out tomorrow