The changes are split into two patches. 0001 - pg_roles view. I plan to organize a new thread for discussion.
Please see it here: https://www.postgresql.org/message-id/db1d94ba-1e6e-4e86-baff-91e6e79071c1%40postgrespro.ru
-- Pavel Luzanov Postgres Professional: https://postgrespro.com
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