ALTER TABLE testschema."table_2_$%{}[]()&*^!@""'`\/#"
    ADD COLUMN "col_3_$%{}[]()&*^!@""'`\/#" bigint(None, None) NOT NULL GENERATED ALWAYS AS IDENTITY ( CYCLE INCREMENT 1 START 1 MINVALUE 1 MAXVALUE 99999 CACHE 10 );

COMMENT ON COLUMN testschema."table_2_$%{}[]()&*^!@""'`\/#"."col_3_$%{}[]()&*^!@""'`\/#"
    IS 'Comment for create';