Hi romesh:
Datastore allows multi-value property. So you can have each (x,y,
list of possible z) in only one row and the filter is as simple as
where z=<some-value>. The only limitation is that list-of-z can not
exceed 5000 elements.
Thomas
On 5月3日, 下午2時02分, romesh soni <[email protected]> wrote:
> Thomas,
>
> it is possible to pre-determine the solution list for given lower and upper
> bounds x and y. But there can be enormous rows for a given (x,y) pair. And
> there will be enormous rows containing (x,y) pairs. So I can not keep a
> predetermined list.
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