[Bugs] #1090 UNSP: refactor indexing/query parsing, add support for prefixes

[SugarLabs Bugs]

#1090: refactor indexing/query parsing, add support for prefixes
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    Reporter:  sascha_silbe               |          Owner:  tomeu                      
        Type:  enhancement                |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  sugar-datastore            |        Version:  Git as of bugdate          
    Severity:  Unspecified                |     Resolution:                             
    Keywords:  r?                         |   Distribution:  Unspecified                
Status_field:  New                        |  
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Changes (by sascha_silbe):

  * keywords:  r- => r?


Comment:

 Bing, entering round 4. ;)

 My shiny new test suite revealed some bugs that I fixed. One of the side
 effects of the fixes is that disk space overhead has been reduced (I had
 previously overlooked a way to do that) - now only the full value of known
 properties is redundant. We could potentially restrict that to special
 properties ('activity' and 'uid'), but in general I don't think there's
 any way around that duplication as we need to efficiently collect the
 "unique values".

 Your dislike for large list comprehensions has also been addressed - for
 large numbers of "known properties" it might even be faster now.

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Ticket URL: <http://dev.sugarlabs.org/ticket/1090#comment:7>
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