How do I combine my AssetSelection as unions, intersections, or differences?

[dagsir[bot]]

Hello, I am trying to pass multiple dbt-based AssetSelection resources to a job definition. It doesn't work. Is there a better way to do this? Example:

remit_professional_pipeline = define_asset_job(
    name="Remit_Professional_Build",
    selection=[
        remit_professional_asset_selector,
        remit_professional_end_table_selector
    ],
)

---

The question was originally asked in Dagster Slack.

[rexledesma]

You can combine your AssetSelection objects using the “|”, “&”, and “-” operators to create unions, intersections, and differences of selections, respectively.

For example, to select the union of your two selection objects:

remit_professional_pipeline = define_asset_job(
    name="Remit_Professional_Build",
    selection=(
        remit_professional_asset_selector | remit_professional_end_table_selector
    ),
)

References:

• https://docs.dagster.io/_apidocs/assets#dagster.AssetSelection