https://github.com/metabase/toucan/blob/master/docs/db-functions.md#update-where says update-where does not call pre-update while https://github.com/metabase/toucan/blob/master/docs/defining-models.md#pre-update says pre-update gets called, while post-update does not.

Now that we're distributing FreeSolv in multiple forms (SDF files, Orion datasets), it would be useful if the column names (that become SD tags) were more informative and self-documenting about things like units. For example, the "expt" label is problematic since (1) it doesn't describe which of the many properties this is the experimental value for, and (2) it doesn't give the units. More infor