core: Add backlog trigger to update lastmsgid

[quassel.git] / src / core / SQL / SQLite / setup_062_add_trigger_backlog_lastmsgid_update_direct_update.sql

CREATE TRIGGER IF NOT EXISTS backlog_lastmsgid_update_trigger_update
AFTER UPDATE
ON backlog
FOR EACH ROW
    BEGIN
        UPDATE buffer
        SET lastmsgid = new.messageid
        WHERE buffer.bufferid = new.bufferid
            AND buffer.lastmsgid < new.messageid;
    END