[OSM-dev] rails schema + mysql on dev v slow
richard at systemeD.net
Wed May 16 09:48:59 BST 2007
> On 15 May 2007, at 17:44, Richard Fairhurst wrote:
>> (What do we gain from having nodes/segments/ways with visible=0 in the
>> current_ tables anyway? Genuine question.)
> select * from current_segments where id = 42;
> 1 = there
> 0 = deleted
> none returned = not created yet
Yeah, I know _that_ ;).
I'm just not sure why we keep deleted segments in the
'current_segments' table anyway. Strikes me that they don't have any
use outside the history table, i.e. 'segments'.
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