MyCATApache/Mycat-Server

基于catlet的多表join怎么实现呢?

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#2.674 aberto em 8 de dez. de 2020

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我在mysql中能够实现三表join查询,但是在mycat中/*!mycat:catlet=io.mycat.catlets.ShareJoin */select * from (student s join student_info i on s.student_id=i.student_id) join class_info c on s.student_id = c.class_id;报空指针异常错误。

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