I want query the data from another database of real-time updates
every day, there are multiple filter criteria,
so write a number of complex sql statement looks very dirty.

    I intended to construct a lazy queryset like the django's ORM  way ,
according to each condition do && or || filtering, but only execute
when the final query coming.

    Does django provided the mechanism or is there exist an plug-in can be done?


                                             Thanks!

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