Every message rewrote the row of every disconnected member of the room,
including the ones who were unread already and stay unread. Open rooms
take in the whole account, so in steady state that is every member on
every message: 325 WAL pages per post at 10,000 members, against 16 when
only the members who had read the room are written.
Directs keep touching all their members: a direct's sidebar row is
cached by its membership and carries the room's recency, so it has to
be refreshed on every message.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017dFSDHrgrLoBELwjV3Qunq
Directs merge Room.directs and order by recency. Shared rooms reuse
with_ordered_room and without_direct_rooms, with the STI filter coming
from Room.without_directs so the join alias stays rooms.
Co-authored-by: Thomas Klemm <github@tklemm.eu>
Load visible direct memberships ordered by room recency and other
rooms ordered by name, instead of hydrating every membership and
splitting them in Ruby.
Fixes#307.
Co-authored-by: Thomas Klemm <github@tklemm.eu>
Marcello Costagliola
Cursor Agent
Kevin McConnell