Re: New record position
От | Chris Browne |
---|---|
Тема | Re: New record position |
Дата | |
Msg-id | 607jjnsosi.fsf@dba2.int.libertyrms.com обсуждение исходный текст |
Ответ на | Re: New record position (Chris Browne <cbbrowne@acm.org>) |
Список | pgsql-sql |
gpatnude@hotmail.com ("Greg Patnude") writes: > There's a difference between "natural" order (the location in the > database or on disk) and "record" order (the order specified by the > primary key)... That's well and fine; I could see the "natural order" in which data is returned varying over time in view of the fact that it is probably quickest to start by first returning the rows that are sitting in shared cache, and only then going to the table to get more. -- (format nil "~S@~S" "cbbrowne" "cbbrowne.com") http://www3.sympatico.ca/cbbrowne/postgresql.html "The present need for security products far exceeds the number of individuals capable of designing secure systems. Consequently, industry has resorted to employing folks and purchasing "solutions" from vendors that shouldn't be let near a project involving securing a system." -- Lucky Green
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