Can't understand how to add/remove/edit column of an existing model

[Romans96]

Issue Description

Hello! SOmeone else that uses sequelize.js knows how to add/remove a column of an existing module? I need in a bot code, to define a tabl,e and then add/removes some column in a switch..case... Thank you

What was unclear/insufficient/not covered in the documentation

Is there the define and drop that are clear on how to do them, but i can't understand how to addcolumn/edit table model

Issue Template Checklist

Is this issue dialect-specific?

• No. This issue is relevant to Sequelize as a whole.
• Yes. This issue only applies to the following dialect(s): XXX, YYY, ZZZ
• I don't know.

Would you be willing to resolve this issue by submitting a Pull Request?

• Yes, I have the time and I know how to start.
• Yes, I have the time but I don't know how to start, I would need guidance.
• No, I don't have the time, although I believe I could do it if I had the time...
• No, I don't have the time and I wouldn't even know how to start.