[Bugs] #1342 UNSP: range queries use lexical comparison, not numerical

[SugarLabs Bugs]

#1342: range queries use lexical comparison, not numerical
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    Reporter:  sascha_silbe               |          Owner:  sascha_silbe     
        Type:  defect                     |         Status:  new              
    Priority:  Unspecified by Maintainer  |      Milestone:  0.86             
   Component:  sugar-datastore            |        Version:  Git as of bugdate
    Severity:  Minor                      |       Keywords:  r?               
Distribution:  Unspecified                |   Status_field:  Assigned         
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 While adding a range query example to the test suite I discovered a bug:
 Range queries currently do lexical comparisons, not a numerical ones. This
 means that a range query of 9000..11000 will _not_ match 10000.
 For the current code this is a minor issue as only the 'timestamp'
 property supports range queries and all dates between about mid-2001 and
 2033 have exactly ten digits (so for regular Journal entries it shouldn't
 make any difference).

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Ticket URL: <http://dev.sugarlabs.org/ticket/1342>
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