db_xml.py: put(): Fixed bug where needed to avoid truncating the pkeys_loc table, in case it's the same as one of the in_tables. This occurs now that sql_io.put_table() passes through the actual input column instead of the joined-together input table's column when ignoring all rows.
db_xml.py: put(): Fixed bug where needed to avoid truncating the pkeys_loc table, in case it's the same as one of the in_tables. This occurs now that sql_io.put_table() passes through the actual input column instead of the joined-together input table's column when ignoring all rows.