Standing up guardrails for Invalid Cols

[Tang8330]

Problem

If we fail to understand the data type from source or destination, we are marking the column as Invalid and we do not copy the data over to the destination. This is a silent failure, and this PR makes that an explicit failure so we can be better at data type mapping.

Change

1. We are now going to error out if we fail to map a data type to a data type in the destination
2. We are going to error out if we are unable to understand the data type from the destination after we run describe table