List all UNLOGGED tables in Postgresql database

Question

Since version 9.1, PostgreSQL supports the creation of UNLOGGED tables which do not use the WAL and are truncated during any DB recovery. See documentation: create unlogged table

Where does PostgreSQL store the information, whether a relation is UNLOGGED? I am looking for a query to list all relations that are UNLOGGED.

Thanks in advance

Answer 1

It is the relpersistence column of the pg_class catalog:

http://www.postgresql.org/docs/9.1/static/catalog-pg-class.html

Answer 2

https://www.postgresql.org/docs/current/catalog-pg-class.html

select relname, relowner from pg_class where relpersistence='u';