it is possible to create an AssetMaterialization in a create_databricks_job_solid that represent a table processed in a databricks spark_jar_task ?

not currently, but I believe it would make sense to add that. for now, if you want to do that, I would recommend rolling your own implementation of

create_databricks_job_solid

that yields an AssetMaterialization. you can copy the code from here: https://github.com/dagster-io/dagster/blob/master/python_modules/libraries/dagster-databricks/dagster_databricks/solids.py#L12 if you have interest in submitting a pull request, we'd also be happy to review

Thanks