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From Stack <st...@duboce.net>
Subject Re: Does the scanner interface have a "previous" method?
Date Sat, 06 Mar 2010 22:17:18 GMT
On Sat, Mar 6, 2010 at 7:59 AM, Hua Su <huas.su@gmail.com> wrote:
> My question is, does there exist any scanner interface that supports to get
> "previous" data record in the table?

Previous would require seeking our backward in storefiles.  We have
something that sort of does this already for the catalog tables and
its an expensive call.

Do you really need a previous?  You want to walk your table in reverse?


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