[dotNetRDF-Develop] Issue SQL-146 has a new comment

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Title: 0.5.0 MS SQL backend poor performance
Project: Data.Sql (dotNetRDF.Data.Sql.dll)
Created By: Rob Vesse
Date: 2011-11-25 09:52 PM
Comment: 

 Fixed in SVN revision 1965 


 Turns out the problem is not due to streaming/batching of the data but rather due to a function call within triple enumeration (which is the bulk of SPARQL processing) that required a database query each time. By caching the results of this function internally the queries become highly responsive finishing in around 0.5 seconds (compared to 0.1 seconds for database server on localhost). Note that this fix also vastly improves local performance (5x) compared to my initial testing to investigate this issue. 


 Thanks for bringing this to my attention, this fix will be in the 0.5.1 release that will be out in the next week or so

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