// 1.29
[ 'addField', 'externallinks', 'el_index_60', 'patch-externallinks-el_index_60.sql' ],
[ 'dropIndex', 'user_groups', 'ug_user_group', 'patch-user_groups-primary-key.sql' ],
[ 'addField', 'user_groups', 'ug_expiry', 'patch-user_groups-ug_expiry.sql' ],
// 1.29
[ 'addField', 'externallinks', 'el_index_60', 'patch-externallinks-el_index_60.sql' ],
[ 'dropIndex', 'user_groups', 'ug_user_group', 'patch-user_groups-primary-key.sql' ],
[ 'addField', 'user_groups', 'ug_expiry', 'patch-user_groups-ug_expiry.sql' ],