message: Allow any column to be filterable or groupable
  This is not configurable and will be the default (and only !) behavior
  going forward !
diff: @@ -861,13 +861,13 @@ class SqlaTable(Model, BaseDatasource):
  dbcol = dbcols.get(col.name, None)
  if not dbcol:
  dbcol = TableColumn(column_name=col.name, type=datatype)
  - dbcol.groupby = dbcol.is_string
  - dbcol.filterable = dbcol.is_string
  dbcol.sum = dbcol.is_num
  dbcol.avg = dbcol.is_num
  dbcol.is_dttm = dbcol.is_time
  else:
  dbcol.type = datatype
  + dbcol.groupby = True
  + dbcol.filterable = True
  self.columns.append(dbcol)
  if not any_date_col and dbcol.is_time:
  any_date_col = col.name
  