CREATE TABLE ar_internal_metadata (
      key character varying NOT NULL,
      value character varying,
      created_at timestamp without time zone NOT NULL,
      updated_at timestamp without time zone NOT NULL
  );
  
  ALTER TABLE ONLY ar_internal_metadata
      ADD CONSTRAINT ar_internal_metadata_pkey PRIMARY KEY (key);
  
  INSERT INTO ar_internal_metadata(key, value, created_at, updated_at) values('environment', 'development', NOW(), NOW());