btrc-hub/backend/db/migrate/20250729124200_create_post_similarities.rb

class CreatePostSimilarities < ActiveRecord::Migration[7.0]
  def change
    create_table :post_similarities do |t|
      t.references :post, null: false, foreign_key: { to_table: :posts }
      t.references :target_post, null: false, foreign_key: { to_table: :posts }
      t.float :cos, null: false
    end
  end
end