Django raw() query, calculated field in WHERE clause

Question

I\'m wondering if there are any limitations on syntax of raw() method when using calculated fields. Here is a quick example:

Company.objects.raw(\'\'\'SELECT         


        

Answer 1

You can use the HAVING clause for derived columns. BTW - this includes columns which are aggregations e.g. the result of SUM, COUNT etc.

So, the following should work:

Company.objects.raw('''SELECT *,core_location.a + core_location.b as dist
FROM core_location,core_company
HAVING dist<10  
ORDER BY dist''')