摘要：
https://www.cnblogs.com/duanxz/p/14786337.html 阅读全文
摘要：
https://blog.csdn.net/chuan_day/article/details/44099859 阅读全文
摘要：
--查看数据库大小，不计算索引 select pg_size_pretty(pg_database_size('mydb')); --查看数据库大小，包含索引 select pg_size_pretty(pg_total_size('mydb')); --查看表中索引大小 select pg_siz 阅读全文
摘要：
SELECT blocked_locks.pid AS blocked_pid, blocked_activity.usename AS blocked_user, blocking_locks.pid AS blocking_pid, blocking_activity.usename AS bl 阅读全文
摘要：
https://www.modb.pro/db/29547 阅读全文
摘要：
https://zhuanlan.zhihu.com/p/84829027 阅读全文
摘要：
https://zhuanlan.zhihu.com/p/475638958 阅读全文