Binary buffers are not properly received

[noamw]

"SELECT x'010203'" returns the string '\u0001\u0002\u0003' instead of the expected Buffer [1, 2, 3].

Simliar issue in mysql-native has been proposed a fix in sidorares/nodejs-mysql-native#78

[sidorares]

in this query result column type is 253 - http://dev.mysql.com/doc/internals/en/prepared-statements.html#packet-ProtocolBinary::MYSQL_TYPE_VAR_STRING

The same TYPE_VAR_STRING is returned fro "select 'hello'" query. Mysql tells us that this is a string, I don't see how we can decide if its string or buffer

[noamw]

That information is apparently conveyed via the charsetnum used.

The fix in mysql-native for this issue is in noamw/nodejs-mysql-native@04c188a

[sidorares]

thanks, I'll do it same way as in your commit