Hello George,

On Sunday 09 November 2014 05:33:36 George Ma wrote:
> I've encountered quite a few cases where I need to write complicated
> queries where a exists subquery makes more sense and has better
> performance. So far, there's no exists subquey support in queryset api.
> Please add it.

I assume the "exists()" method on querysets does not give you what you want, 
but it isn't quite clear from the above what that is.

Could you please give an example of the API you'd like to see and the SQL that 
would be generated by it?

Thanks,
        Shai.

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