调试带有双子查询,单子查询和所有内部联接语句的查询之间的性能差异(和问题)
I have a complex business logic that requires me to perform a 2-levels nested query. The queries are generated by Django's ORM. At the bottom of the question I'll provide the queries as-is as well as a full EXPLAIN suitable to be viewed with PEV2, but in o...