DataMapper ORM v1.8.2

[eluser]WanWizard[/eluser]
I suggest you look at the fix then, because Datamapper doesn't build it's own queries, it uses CI'a Active Record library, which maps the where() in a DM model directly to $this->db->where().

Looking at that bit of code, it is related to column name aliases, which is not relevant to your example.

And officially Datamapper only supports 2.1.0. Is has not been tested on later versions, and given the changes to the core, it is very likely there will be issues in 2.1.1.