解决CodeIgniter大量查询sql时占用内存大问题

最近的项目上面做大数据插入时总提示内存超出限制

不管怎样unset结果内存仍然很大！

最终发现是CI的机制导致，只要关闭掉问题解决了

$this->db->save_queries = FALSE;

这东西是从v1.6开始就有

Added $this->DB->save_queries variable to DB driver, enabling queries to get saved or not. Previously they were always saved.

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