[Mono-list] Bug (?) in SqliteDataReader

Nikki Locke nikki at trumphurst.com
Mon May 15 07:30:04 EDT 2006

I use the Sqlite database under both Windows and Linux. Under Windows, if I 
have a date or datetime field, then row data returned from a query on that 
field is returned as a DateTime. Under Linux, it is returned as a string. 
Worse, the string format is ambiguous (is it DD/MM/YYYY or MM/DD/YYYY?).

This appears to be a bug in SqliteDataReader.GetSchemaTable, which sets 
schemaRow["DataType"] to typeof(string) for every field, regardless.

I have copied the entire 
mcs/class/Mono.Data.SqliteClient/Mono.Data.SqliteClient diretory into my 
project, applied the fix below, and recompiled, and it now works as I would 

Is this a reasonable patch? If it is, how should I go about getting it 
included in the mono official sources?

Around line 278, replace...

        schemaRow["DataType"] = typeof(string);


        switch(GetDataTypeName(i)) {
            case "int":
            case "integer":
                    schemaRow["DataType"] = typeof(int);
            case "date":
            case "datetime":
                    schemaRow["DataType"] = typeof(DateTime);
                    schemaRow["DataType"] = typeof(string);

Nikki Locke, Trumphurst Ltd.      PC & Unix consultancy & programming

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