Table to CSV Column Problem

Command:
User.select("**Other_column**").where(:id => [1,2,3]).copy_to "/tmp/users.csv"

Is generating the following SQL command:
COPY (SELECT **name** FROM "users" WHERE "users"."id" IN (1, 2, 3)) TO '/tmp/users.csv' WITH DELIMITER ',' CSV HEADER
※Mentioed column is not present in SQL command

Thank you.
