pg migration raw sql CREATE FUNCTION gets error: "TypeError: Cannot redefine property: then"

 await sql`
    CREATE FUNCTION universal_history_trigger_function()
    RETURNS trigger AS $$
    BEGIN
      IF TG_OP='INSERT' THEN
        INSERT INTO universal_history (table_name, schema_name, operation, who_id, new_val)
          VALUES (TG_RELNAME, TG_TABLE_SCHEMA, TG_OP, NEW.last_modified_by_id, row_to_json(NEW));
        RETURN NEW;
      ELSIF TG_OP='UPDATE' THEN
        INSERT INTO universal_history (table_name, schema_name, operation, who_id, new_val, old_val)
          VALUES (TG_RELNAME, TG_TABLE_SCHEMA, TG_OP, NEW.last_modified_by_id,
            row_to_json(NEW), row_to_json(OLD));
        RETURN NEW;
      ELSIF TG_OP='DELETE' THEN
        INSERT INTO universal_history (table_name, schema_name, operation, who_id, old_val)
          VALUES (TG_RELNAME, TG_TABLE_SCHEMA, TG_OP, NEW.last_modified_by_id, row_to_json(OLD));
        RETURN OLD;
      END IF;
    END;
    $$ LANGUAGE plpgsql;
  `.execute(db);

 await sql`
    CREATE FUNCTION universal_history_trigger_function()
    RETURNS trigger AS $$
    BEGIN
      IF TG_OP='INSERT' THEN
        INSERT INTO universal_history (table_name, schema_name, operation, who_id, new_val)
          VALUES (TG_RELNAME, TG_TABLE_SCHEMA, TG_OP, NEW.last_modified_by_id, row_to_json(NEW));
        RETURN NEW;
      ELSIF TG_OP='UPDATE' THEN
        INSERT INTO universal_history (table_name, schema_name, operation, who_id, new_val, old_val)
          VALUES (TG_RELNAME, TG_TABLE_SCHEMA, TG_OP, NEW.last_modified_by_id,
            row_to_json(NEW), row_to_json(OLD));
        RETURN NEW;
      ELSIF TG_OP='DELETE' THEN
        INSERT INTO universal_history (table_name, schema_name, operation, who_id, old_val)
          VALUES (TG_RELNAME, TG_TABLE_SCHEMA, TG_OP, NEW.last_modified_by_id, row_to_json(OLD));
        RETURN OLD;
      END IF;
    END;
    $$ LANGUAGE plpgsql;
  `.execute(db);