May 3, 2012 — Nor is it a foreign key in the same sense as django's db.models. ... Due to the way GenericForeignKey is implemented, you cannot use such fields directly with filters (filter() and exclude(), ... The SQL can end up looking pretty funky though, since that subquery is not converted ... Here are the two query plans: ...
django-subquery-multiple-columns
I am trying to write the below query using JPA criteria but I am not able to select the multiple columns in a subquery. SELECT a.id, a.firstName, a.lastName .... More robust annotations and subqueries make the vast majority of SQL possible in stock Django. ... For every unneeded row or column, Django has to do extra work to transform it into a model instance. ... There are two resources that… 939c2ea5af
django subquery multiple columns
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