[Digikam-devel] [Bug 146964] New: Sort order by date sometimes wrong, if pictures have exactly the same timestamp

[Achim Luecking]

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http://bugs.kde.org/show_bug.cgi?id=146964         
           Summary: Sort order by date sometimes wrong, if pictures have
                    exactly the same timestamp
           Product: digikam
           Version: 0.9.1
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: achim luecking-brothers de


Version:           0.9.1 (using KDE KDE 3.5.7)
Installed from:    SuSE RPMs
OS:                Linux

If I have an album with pictures, which are numbered ascending and which have all the exactly same timestamp (e.g. 03/07/2001 00:00:00,  stored in EXIF header and used as file date), the pictures are sorted right using "by name" as sort order. 

If I change the sort order to "by date", sometimes some pictures are sorted wrong. They switch to the end of the block with the same timestamp. I can't reproduce it deterministicly, but it seems, that this problem occurs not with pictures taken by a digital camera, but with old scanned pictures with an manually added EXIF header. 

What I exspect is, that in case of a none unique primary sort key (exactly same date), a secondary sort key (name) is used. This seems not to be done. If all pictures of an album have an unique timestamp, the sort order should be the same independendly from the used sort order (name or date).