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I was using comment voting plugin and in Q2A 1.8 this is a core feature. While trying to upgrade there was a database error as the cvoteds and similar column entries were already present in qa_userpoints table. What would be a good way to handle this?

1. Deleting the columns will loose all the votes done so far

2. Can I upgrade code be modified to take care of this? Will this cause any side effect?
Q2A version: 1.8.0
closed with the note: Solved.
I glanced at the comment voting plugin: https://github.com/NoahY/q2a-comment-voting
It alters no Q2A table and has no reference to a `cvoteds` column
Sorry, that was my mistake. It was added via the BetterPoints plugin and not the comment vote. I'll take care of it. Thank you.