Rails 3 与 Postgresql - 嘈杂的数据库？

Question

我最近将 Rails 应用程序移至 Postgres，并注意到开发日志中充满了如下所示的 SQL 语句：

  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

任何人都知道这是怎么回事，似乎这对性能造成了影响？是吗？

谢谢

Answer 1

您可以使用 静默-postgres 宝石。