class CreateAnnotationAnnomarks < ActiveRecord::Migration[6.1]
  def change
    create_table :annotation_annomarks do |t|
      t.references :annotation, null: false
      t.references :annomark, null: false

      t.timestamps
    end

    add_index :annotation_annomarks, %i[annotation_id annomark_id],
              name: "index_annotation_annotation_marks_uniquness", unique: true
  end
end