如果你打算进行聚合,则可以使用ORM的聚合功能:
from django.db.models import CountMembers.objects.values('designation').annotate(dcount=Count('designation'))
这导致查询类似于
SELECt designation, COUNT(designation) AS dcountFROM members GROUP BY designation
并且输出将为以下形式
[{'designation': 'Salesman', 'dcount': 2}, {'designation': 'Manager', 'dcount': 2}]
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