MySQL IN clause: max number of arguments

Question

Say you have the following query:

SELECT * FROM table1 WHERE table1.id IN (1, 2, 3, 4, 5, ..., 999999)

What is a reasonable maximum for the

Answer 1

From my experience the maximum values is 1000 values in clause IN ('1',....,'1000'), I have 1300 value in my excel sheet,I put them all into IN ,MySQL return only 1000 .