MySQL incorrect key file for tmp table when making multiple joins

Question

I don\'t come here for help often but I am pretty frustrated by this and I am hoping someone has encountered it before.

Whenever I try to fetch records from a table

Answer 1

I experience the same problem.

Here is my solution : 1. Dont use "select *". Just select field that you need. 2. Split the query. If the field you select is too much, splitting it to some query can be a result. You can "array_merge()" the result later if you want the variable that contain the result not changed.

On my case, I split the query to 5 queries, then array merge it using PHP.

The problem is lies on the mysql server. It is just a thing that application developer (such us me) don't has a previlege.