--
-- btrim/2
--
create or replace function btrim(
  text,
  text
) returns text as $$
btrim$$ language plpgsql;


--
-- btrim/1
--
create or replace function btrim(
  text
) returns text as $$
btrim1$$ language plpgsql;


--
-- btrim/2
--
create or replace function btrim(
  bytea,
  bytea
) returns bytea as $$
byteatrim$$ language plpgsql;