我就廢話不多說了，大家還是直接看代碼吧~

select pg_size_pretty(pg_relation_size(‘cuiyonghua.top_iqiyi_info’));
select pg_size_pretty(pg_relation_size(‘cuiyonghua.top_mgtv_info’));
select pg_size_pretty(pg_relation_size(‘cuiyonghua.top_tencent_info’));
select pg_size_pretty(pg_relation_size(‘cuiyonghua.top_zhihu_info’));