如何檢查 PostgreSQL 表是否是臨時的？

如何編寫查詢來檢查 PostgreSQL (10.x) 表是否為臨時表？

我查看了pg_class系統表，但找不到任何關於關係是否是臨時的列。

SELECT * FROM pg_class WHERE False;
relname | relnamespace | reltype | reloftype | relowner | relam | relfilenode | reltablespace | relpages | reltuples | relallvisible | reltoastrelid | relhasindex | relisshared | relpersistence | relkind | relnatts | relchecks | relhasoids | relhaspkey | relhasrules | relhastriggers | relhassubclass | relrowsecurity | relforcerowsecurity | relispopulated | relreplident | relispartition | relfrozenxid | relminmxid | relacl | reloptions | relpartbound 
---------+--------------+---------+-----------+----------+-------+-------------+---------------+----------+-----------+---------------+---------------+-------------+-------------+----------------+---------+----------+-----------+------------+------------+-------------+----------------+----------------+----------------+---------------------+----------------+--------------+----------------+--------------+------------+--------+------------+--------------
(0 rows)

從手冊中引用

relpersistence：p = 永久表，u = 未記錄表，t = 臨時表

引用自：https://dba.stackexchange.com/questions/202057