Richard van der Hoff wrote: > synapse=> select count(*), room_id, type, state_key from > current_state_events group by 2,3,4 order by count(*) DESC LIMIT 2; > count | room_id | type | state_key > -------+-----------------------------------+---------------+------------------------------------- > 3 | !ueLfVrSWYGMnFnoCbT:darkfasel.net | m.room.member | > @irc_ebi_:darkfasel.net > 3 | !HwocBmCtBcHQhILtYQ:matrix.org | m.room.member | > @freenode_AlmarShenwan_:matrix.org Looking at these columns which are of type text but do not contain words of any particular language, there's probably no point in using a linguistic-aware collation for them. If you maintain the database schema, what you could do to avoid the dependency on the OS collation and stay clear of the particular upgrade difficulty of collations is to use COLLATE "C" for this kind of field, as opposed to the default collation of the database. As a bonus, operations with the "C" collations tend to be faster, sometimes even much faster. Best regards, -- Daniel Vérité PostgreSQL-powered mailer: http://www.manitou-mail.org Twitter: @DanielVerite
