[OSM-dev] Alternative PostgreSQL Schema

Tom Hughes tom at compton.nu
Wed Oct 24 15:23:45 BST 2007


In message <2fc2c5f10710240716u51769887j5686214f4d81ab58 at mail.gmail.com>
        Martijn van Oosterhout <kleptog at gmail.com> wrote:

> On 10/24/07, Brett Henderson <brett at bretth.com> wrote:
>> An OSM data element's visible status may change many times over its
>> lifecycle.  A visible flag of false is a logical delete, but records can
>> be undeleted on a subsequent version.  The visible flag on the history
>> tables doesn't indicate which data is current.
>
> Oh? Last time I tried it wasn't possible to undelete things. Did this
> change with the 0.5 port?

No, it didn't. Presumably it will when we get proper rollback
support though.

Tom

-- 
Tom Hughes (tom at compton.nu)
http://www.compton.nu/




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