text: -- Table: public.metadata
  
  -- DROP TABLE IF EXISTS public.metadata;
  
  CREATE TABLE IF NOT EXISTS public.metadata
  (
      key character varying(25) COLLATE pg_catalog."default" NOT NULL,
      value jsonb,
      CONSTRAINT metadata_pkey PRIMARY KEY (key)
  )
  
  TABLESPACE pg_default;
  
  ALTER TABLE IF EXISTS public.metadata
      OWNER to postgres;
  
  INSERT INTO metadata (key, value)
  VALUES('blockchain', '{}') 
  ON CONFLICT (key) 
  DO NOTHING;