Lucas Roesler • 2/6/2017

Postgres Joins and Django Querysets

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This technical article discusses a common performance pitfall in Django applications: the 'waterfall of doom' or N+1 query problem. Using a calendar/event data model as an example, it explains how naive serialization with Django Rest Framework leads to inefficient database joins in Postgres. The author contrasts the belief that 'joins are free' with practical experiences on large datasets, highlighting the need for careful query optimization in the ORM.

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#postgresql #Django Orm #Query Optimization
Postgres Joins and Django Querysets

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