anchor.diff:      {SKey, SInc};
   rewrite_start_key_with_filters([AddFieldName|Tail], ToKeyTypeFn, Filter, SKey, SInc1) when is_binary(AddFieldName) ->
       case proplists:get_value(AddFieldName, Filter) of
  -        {Op,_,_} = F  when Op == '='; Op == '>' ->
  +        {Op,_,_} = F  when Op == '='; Op == '>'; Op == '>=' ->
               %% when an equality operator is found, we can put it on the key but
               %% cannot safely remove the filter
               SKeyElem = to_key_elem(ToKeyTypeFn, F),
  
positive.code:         "CREATE TABLE table1("
          "a TIMESTAMP NOT NULL, "
          "b SINT64 NOT NULL, "
          "PRIMARY KEY ((a),a,b))"),
      {ok, Q} = get_query(
          "SELECT * FROM table1 "
          "WHERE a = 5 AND b >= 10 AND b > 10"),
  
negative.code:         "CREATE TABLE table1("
          "a TIMESTAMP NOT NULL, "
          "b SINT64 NOT NULL, "
          "PRIMARY KEY ((a),a))"),
      {ok, Q} = get_query(
          "SELECT * FROM table1 "
          "WHERE a = 5 AND b > 10 AND b >= 10"),
  