greenplum统计表占用空间
2021-10-15 本文已影响0人
eqieyiran
1.查找某shema下所有表占用的空间
select schemaname,tablename,round(sum(pg_total_relation_size(schemaname||','||tablename))/1024/1024/1024,2) as tablesize_G from pg_tables where schemaname in ('edc_wg') group by 1,2 order by tablesize_G desc;
2.查询单表占用空间
select pg_size_pretty(pg_total_relation_size('tb_name'));
