查找Postgres表的副本身份

Question

是否可以使用pgAdmin或通过查询来查看Postgres表具有哪种副本身份？

Answer 1

您可以查询pg_class系统目录：

SELECT CASE relreplident
          WHEN 'd' THEN 'default'
          WHEN 'n' THEN 'nothing'
          WHEN 'f' THEN 'full'
          WHEN 'i' THEN 'index'
       END AS replica_identity
FROM pg_class
WHERE oid = 'mytablename'::regclass;