Exporting in CSV format using where condition

[Ravipg]

Dear All,

I have been facing below issue when trying to export table data in CSV format only when used where condition.
I dont see any issue if I dont use where condition.
Eg:
Succesfully copied to CSV

dnsdb=> \copy domains to  '/root/pgdata/mycsv.csv' csv;

COPY
Failing with below error when added where condition

dnsdb=> \COPY (SELECT * FROM DOMAINS where id='20313') to mycsv_2.csv;
ERROR:  syntax error at or near "("
LINE 1: COPY  ( SELECT * FROM DOMAINS where id= '20313' ) TO STDOUT ...

I have been doing this with connecting from remote to postgresql database in DC.
psql client version

[root@ip-10-101-48-155~]# psql --version
psql (PostgreSQL) 10.17
[root@ip-10-101-48-155 ~]#

PostgreSQL server version

dnsdb=> select version();
                                                 version
---------------------------------------------------------------------------------------------------------
 PostgreSQL 8.1.23 on i386-redhat-linux-gnu, compiled by GCC gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-54)
(1 row)