Hi All, following the upgrade to 2.1 queries with less than operators are failing in NH.

Here is a test to replicate (put this in CommandTests.cs)

    [Test]
    public void LessThanInQueryStringWithPrepare()
    {
        var command = new NpgsqlCommand("select count(*) from data where field_serial <:param1", Conn);
        command.Parameters.AddWithValue(":param1", 1);
        command.Prepare();
        command.ExecuteScalar();
    }

ERROR: 42601: syntax error at or near ":"

This is because 'param1' is not replaced before being sent to the server.

This test is a direct copy of 'GreaterThanInQueryStringWithPrepare' which is the same file, which passes successfully!

Alex.