How to improve INSERT performance on a very large MySQL table

Question

I am working on a large MySQL database and I need to improve INSERT performance on a specific table. This one contains about 200 Millions rows and its structure is as follow

Answer 1

You could use

load data local infile ''
REPLACE
into table 

etc...

The REPLACE ensure that any duplicate value is overwritten with the new values. Add a SET updated_at=now() at the end and you're done.

There is no need for the temporary table.