查看数据库及表占用的空间

遇到问题：insert 单个表不进去

select pg_size_pretty(pg_database_size('lrisk'));

select pg_database.datname,pg_size_pretty(pg_database_size('lrisk')) AS size
from pg_database;

select * from pg_database

SELECT relname, relpages FROM pg_class ORDER BY relpages DESC;