--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_size_pretty(pg_indexes_size(
'test_1'
));
--查看表大小,不包括索引
select
pg_size_pretty(pg_relation_size(
'test_1'
));
--or
\dt+ test_1
--查看表大小,包括索引
select
pg_size_pretty(pg_total_relation_size(
'test_1'
));
--查看某个模式大小,包括索引。不包括索引可用pg_relation_size
select
schemaname,round(
sum
(pg_total_relation_size(schemaname||
'.'
||tablename))/1024/1024)
"Mb"
from
pg_tables
where
schemaname=
'mysch'
group
by
1;
--查看表空间大小
select
pg_size_pretty(pg_tablespace_size(
'pg_global'
));
--查看表对应的数据文件
select
pg_relation_filepath(
'test_1'
);
--切换log日志文件到下一个
select
pg_rotate_logfile();
转:http://blog.itpub.net/29487349/viewspace-2510782/
https://blog.csdn.net/u013992330/article/details/106807311/