Merge pull request #245 from guzman-raphael/fix-238

Update error message3

Author: guzman-raphael

+dj/Relvar.m

@@ -251,7 +251,7 @@ function insert(self, tuples, command)
                     elseif header.attributes(i).isBlob
                         assert(~issparse(v), ...
                             'DataJoint:DataType:Mismatch', ...
-                            'The field `%s` must not be a sparse blob', ...
+                            'Sparse matrix in blob field `%s` is currently not supported', ...
                             header.attributes(i).name);
                         valueStr = sprintf('%s"{M}",', valueStr);
                         blobs{end+1} = v;    %#ok<AGROW>
@@ -369,7 +369,7 @@ function update(self, attrname, value)
                 case header.attributes(ix).isBlob
                     assert(~issparse(value), ...
                         'DataJoint:DataType:Mismatch', ...
-                        'The field `%s` must not be a sparse blob', ...
+                        'Sparse matrix in blob field `%s` is currently not supported', ...
                         attrname);
                     valueStr = '"{M}"';
                     value = {value};