Changing column type [Needs Upgrade Notes]

I do not believe this change column is likely used by adopters; It has
to do with adding permissions to an individual Sipity::Entity.

The change is necessary because the foreign key was created as a string,
but the associated primary key on the other table was an integer.

This is likely a bad copy paste job from ndlib/sipity

lib/generators/hyrax/templates/db/migrate/20200617002029_change_sipity_entity_specific_responsibility.rb.erb

@@ -0,0 +1,9 @@
+class ChangeSipityEntitySpecificResponsibility < ActiveRecord::Migration<%= migration_version %>
+  def change
+    if ActiveRecord::Base.connection.adapter_name == "PostgreSQL"
+      change_column :sipity_entity_specific_responsibilities, :entity_id, 'integer USING CAST(entity_id AS integer)'
+    else
+      change_column :sipity_entity_specific_responsibilities, :entity_id, :integer
+    end
+  end
+end