[Nepomuk] Review Request 106467: Virtuoso Backend: Optimize ODBC getCharData

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(Updated May 28, 2013, 3:24 p.m.)


Status
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This change has been marked as submitted.


Review request for Nepomuk, Soprano and Sebastian Trueg.


Description
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    Only use 1 SQLFetchData command in most of the cases.
    
    Callgrind stats show that 67.5% of the time in this function is spent in
    the first SQLFetchData, and an additional 27% in the second SQLGetData.
    We can avoid some of this extra cost, by only calling the function
    once.

I can change the size of the default buffer if required.


Diffs
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  backends/virtuoso/odbcqueryresult.cpp a4f2387 

Diff: http://git.reviewboard.kde.org/r/106467/diff/


Testing
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Thanks,

Vishesh Handa

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