Merge pull request #23 from sightmachine/DATA-826

DATA-826:SDK - warn if truncating number of columns

Author: demaagdk

smsdk/client_v0.py

@@ -288,6 +288,7 @@ def inner(self, normalize=True, clean_strings_in=True, clean_strings_out=True, *
                 '_limit not specified.  Maximum of 5000 rows will be returned.'
 
             if not '_only' in kwargs:
+                print('_only not specified.  Selecting first 50 fields.')
                 only_names = schema['name'].tolist()[:50]
                 toplevel = ['machine__source', 'starttime', 'endtime', 'total', 'record_time', 'shift', 'output']