Hello list!
I have been thinking my head off trying to figure it out and
documentation won't help me.
Yesterday I recieved the tip to use a GUID as a database wide unique
key. Well, I think it is the only option I have.
I import a shape file into a temp table.
>From this temp table is then insert the content into 2 other tables:
final_attributes and final_geom
Final_attributes should contain all the attribute fields plus a column
to connect it to final_geom
Final_geom should contain a column to connect to Final_attributes plus
the_geom.
Because Final_attributes is a table that also connects to other
geom_tables; it needs a id that is unique over 3 or even more tables.
If I can generate GUIDs with php, Is that a good option?
Is there a way to use the geometry column to generate some sort of
unique ID? I would also like to check if the geometry is unique within
it's final_geom table!
What datatype should I use to store the GUID?
I cannot figure it out... please lend me a hand
--
Milo van der Linden
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http://www.3dsite.nl
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