Upgrade 4.2.4 -> 4.3.1 Failed With Db Error

Folks got this error while upgrading

Strange things about this

1. this table is empty

2. when I did a pre run on a copy of this DB and source code on another server all worked fine until I got to a later release???

DB error in post upgrade: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IGNORE TABLE cscart_tag_links DROP COLUMN user_id' at line 1 (1064): ALTER IGNORE TABLE cscart_tag_links DROP COLUMN user_id
Anybody any idea's as the site was down until I did a restore back to 4.2.4