Rails 3与Postgresql - 嘈杂的数据库？

Question

我最近搬到我的Rails应用程序给Postgres并且在发展日志发现它的完整的SQL语句如下所示：

SQL (1.1ms) SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull 
FROM pg_attribute a LEFT JOIN pg_attrdef d 
ON a.attrelid = d.adrelid AND a.attnum = d.adnum 
WHERE a.attrelid = '"permissions"'::regclass 
AND a.attnum > 0 AND NOT a.attisdropped 
ORDER BY a.attnum 
    SQL (1.1ms) SELECT a.attname, format_type(a.atttypid, a.atttypmod), d.adsrc, a.attnotnull 
FROM pg_attribute a LEFT JOIN pg_attrdef d 
ON a.attrelid = d.adrelid AND a.attnum = d.adnum 
WHERE a.attrelid = '"spaces"'::regclass 
AND a.attnum > 0 AND NOT a.attisdropped 
ORDER BY a.attnum 

任何人都知道这笔交易是什么这个问题，好像它是一个性能命中？是吗？

感谢

Answer 1

你可以摆脱与silent-postgres宝石这些消息。