- Is there a plan to fix this in a near future ? and if yes, when ?

SOGo team closed the ticket without a future plan: https://bugs.sogo.nu/view.php?id=5630
No plan to fix it shortly: iRedMail installer creates the sql database but not the sql tables, SQL tables are generated automatically by SOGo itself while launching first time.

I suggest opening a new ticket in SOGo bug tracker to ask them to offer a shell/sql/... script to handle this, officially.

These SQL tables won't be dropped and re-created during package update, so you're safe.

You're correct. Make sure you're using the same character set on server side and client side.
We experienced same issue with Postfix last week (utf vs utf8mb4).

No side effects as far as i know.

Hi,

It’d like to fix the more and more frequently seen error in sogo that appears when users use extended UTF-8 characters like emoticons in event’s title or description.
The fix requires converting the sogo database to utf8mb4. More info can be found on sogo’s mantis id=5630

I’ve start to work on an action plan ( find it at the end of the post). And then a few questions appears :
- Is there a plan to fix this in a near future ? and if yes, when ?
- What happen if I fix things myself now, and an update provides another fix later ?
- The backup_mysql.sh script set --default-character-set variable to utf8, it seems to be a good idea to convert all database to utf8mb4, then change this value to utf8mb4, no ?
- Is there any other side effect that I did not find ?

Action plan :
*** Convert SOGo database to utf8mb4
alter database sogo character set utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_acl table
SHOW FULL COLUMNS FROM sogo_acl;
ALTER TABLE sogo_acl MODIFY c_object varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_acl MODIFY c_uid varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_acl MODIFY c_role varchar(80) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_admin table
SHOW FULL COLUMNS FROM sogo_admin;
ALTER TABLE sogo_admin MODIFY c_key varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_admin MODIFY c_content mediumtext CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_alarms_folder
SHOW FULL COLUMNS FROM sogo_alarms_folder;
ALTER TABLE sogo_alarms_folder MODIFY c_path varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_alarms_folder MODIFY c_name varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_alarms_folder MODIFY c_uid varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_cache_folder
SHOW FULL COLUMNS FROM sogo_cache_folder;
ALTER TABLE sogo_cache_folder MODIFY c_uid varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_cache_folder MODIFY c_path varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_cache_folder MODIFY c_parent_path varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_cache_folder MODIFY c_content longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_folder_info
SHOW FULL COLUMNS FROM sogo_folder_info ;
ALTER TABLE sogo_folder_info MODIFY c_path varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_path1 varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_path2 varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_path3 varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_path4 varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_foldername varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_location varchar(2048) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_quick_location varchar(2048) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_acl_location varchar(2048) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_folder_info MODIFY c_folder_type varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_quick_appointment
SHOW FULL COLUMNS FROM sogo_quick_appointment ;
ALTER TABLE sogo_quick_appointment MODIFY c_name varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_uid varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_title varchar(1000) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_participants text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_cycleinfo text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_location varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_orgmail varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_partmails text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_partstates text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_category varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_component varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_appointment MODIFY c_description text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_quick_contact
SHOW FULL COLUMNS FROM sogo_quick_contact ;
ALTER TABLE sogo_quick_contact MODIFY c_name varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_givenname varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_cn varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_sn varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_screenname varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_l varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_mail text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_o varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_ou varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_telephonenumber varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_categories varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_quick_contact MODIFY c_component varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_sessions_folder
SHOW FULL COLUMNS FROM sogo_sessions_folder ;
ALTER TABLE sogo_sessions_folder MODIFY c_id varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_sessions_folder MODIFY c_value varchar(4096) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_store
SHOW FULL COLUMNS FROM sogo_store ;
ALTER TABLE sogo_store MODIFY c_name varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_store MODIFY c_content mediumtext CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

***** sogo_user_profile
SHOW FULL COLUMNS FROM sogo_user_profile ;
ALTER TABLE sogo_user_profile MODIFY c_uid varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_user_profile MODIFY c_defaults text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
ALTER TABLE sogo_user_profile MODIFY c_settings text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;