are mismatched cols an issue?

[GusBeare]

I love Simple. Data and I hope it doesn't die.

I am curious about something. I am playing with dynamic objects and not using models.

If I update a table like this:

db.Mytable.UpdateById(formRow);

Sometimes there are items in the data object (formRow) that are missing from the table. Only a couple at the most. I can remove these like this:

formRow.Remove(KeyName);

But is there any point? Simple.Data seems to be able to handle the mismatches.

Is it good practice to remove them? I would assume that I should only ever include cols that are being updated. But is it really necessary?