Users page won't load if there are many users

Yes, this should work: (\x just makes the output simpler to read — toggles one line per column on/off)

cd /opt/talkyard
docker-compose exec rdb psql talkyard talkyard

\x

select * from users3 where
  primary_email_addr = 'abcd@example.com' or
  username = 'abcd' or
  full_name like '%part-of-name%' or
  sso_id = '123abcdef45678' ;

(If the name of the database is something else, you can log in as Postgres and type \l to list all databases:

docker-compose exec rdb psql postgres postgres
postgres=# \l

)

Let me know if you can't find what you're looking for in the users table. Then, the info is probably stored in some other table, and I can post SQL for that. (The funny name: users3 will be changed to pats_t (for "participants_table") some time in the future)