What is the correct way to create a non-unique index for an attribute?

[jtokoph]

Is that part of the resource DSL+codgen, or just a manual migration that needs to be created?

[zachdaniel]

https://hexdocs.pm/ash_postgres/dsl-ashpostgres-datalayer.html#postgres-custom_indexes You'd use this postgres DSL to do it. Or if what you need isn't supported there, you can add a custom_statement.