常用命令

1.查看指定schema中各表占空间大小

   
   
   
   

    
    
    
    
    SELECT
    
    
    
     relname , pg_size_pretty( pg_relation_size(relid) ) 
    
    
    
    FROM
    
    
    
     pg_stat_user_tables 
    
    
    
    WHERE
    
    
    
     schemaname 
    
    
    
    =
    
    
    
     
    
    
    
    '
    
    
    
    public
    
    
    
    '
    
    
    
     
    
    
    
    ORDER
    
    
    
     
    
    
    
    BY
    
    
    
     pg_relation_size(relid) 
    
    
    
    DESC
    
    
    
     ;