Re: out-of-order caution
От | Simon Riggs |
---|---|
Тема | Re: out-of-order caution |
Дата | |
Msg-id | CA+U5nM+GEcz+u8mW4dALia_aRZstD_8d_LLvNc8bOb126M0U9w@mail.gmail.com обсуждение исходный текст |
Ответ на | out-of-order caution ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>) |
Ответы |
Re: out-of-order caution
Re: out-of-order caution |
Список | pgsql-hackers |
On Thu, Oct 27, 2011 at 4:41 PM, Kevin Grittner <Kevin.Grittner@wicourts.gov> wrote: > On the docs page for the SELECT statement, there is a caution which > starts with: > > | It is possible for a SELECT command using ORDER BY and FOR > | UPDATE/SHARE to return rows out of order. This is because ORDER BY > | is applied first. > > Is this risk limited to queries running in READ COMMITTED > transactions? If so, I think that should be mentioned in the > caution. I think it should say that if this occurs with SERIALIZED transactions it will result in a serialisation error. Just to say there is no effect in serializable mode wouldn't be helpful. -- Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
В списке pgsql-hackers по дате отправления: