npgsql - Npgsql2: [#1010567] failed LargeObject operation causes

Log Message:
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[#1010567] failed LargeObject operation causes NotSupportedException. This patch may also work as a workaround for any seek exception problem. We still have to investigate why Npgsql is letting behind data in the stream.

Modified Files:
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Npgsql2/src/Npgsql:
NpgsqlQuery.cs (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/npgsql/Npgsql2/src/Npgsql/NpgsqlQuery.cs.diff?r1=1.6&r2=1.7)