Hi!
>per https://www.postgresql.org/docs/current/sql-altertable.html
>"You must own the table to use ALTER TABLE."
>That means the current user must own the to be SPLITed partition.
Last statement may be incorrect (if the logic is different).
Current user can attach another user's partition. If current user can
change (attach) another user's partition, why can't he split the
partition? After attach, partition is part of current user's table, and
current user can change his own table. (Moreover, the owner of the new
partitions is the same as the owner of the split partition.)
--
With best regards,
Dmitry Koval
Postgres Professional: http://postgrespro.com