Only have to be unique across case_study_id
Tidy up example scripts a bit
Add always_quote, error on empty vector
division is a string, so the IN clause should contain quoted values
Don't wipe sampling_type, existing data might be using that.
Use a "Test" case study, not a real thing
Use a more descriptive path for output files
case_study_id / name should be unique in a mfdb_cs_taxonomy
Use dbWriteTable to pump survey data into a temporary table first, then insert it.
Don't Vectorize every time we need it