MySQL query breaks on certain WHERE condition

Question

I have a MySQL query that only crashes on one certain where clause, it says the table has crashed and needs to be repaired .

This query works:

SELECT
    DirectionId
FROM
    Messages
WHERE
    CustomField1 = 56 AND DirectionId = 1

This one does not

SELECT
    DirectionId
FROM
    Messages
WHERE
    CustomField1 = 209 AND DirectionId = 1

But if I do this it works:

SELECT
    DirectionId
FROM
    Messages
WHERE
    CustomField1 = 209

Or this it also works

SELECT
    DirectionId
FROM
    Messages
WHERE
    DirectionId = 1

Any ideas?

Answer 1

Try to use the MySQL internal cleanup routines to repair your INDEXes:

Type this on the MySQL CLI:

REPAIR TABLE Messages