/usr/share/doc/cpanel-pdns-4.9.2/ Current File: //usr/share/doc/cpanel-pdns-4.9.2/4.3.0_to_4.7.0_schema.mysql.sql

ALTER TABLE domains ADD options VARCHAR(64000) DEFAULT NULL;
ALTER TABLE domains ADD catalog VARCHAR(255) DEFAULT NULL;
ALTER TABLE domains MODIFY type VARCHAR(8) NOT NULL;

CREATE INDEX catalog_idx ON domains(catalog);