Server to Clienst: Transmitting just ASCII for numericals?
Posted by: Jens Ruena
Date: December 07, 2012 05:05AM

Hi,

While investigating performance problems in our legacy multi-client application, I found that our clients read all values (ints, doubles, etc.) from the MYSQL C-Connector in ASCII literals. That means all numbers are coded in text (the String “123” for the int 123). Most of our data consist of numerical values (ints and doubles). Our main performance problem are queries that take to long, so I am wondering:
* Does MySQL transmit numerics as ASCII? So the server has to do the sprintf(), and the client has to do the sscanf()?
* Is there a way to get binaries form the MySQL server? (we are using mysql_fetch_row())
* Is MySQL itself just storing text? (I don't think so)
* Is the transmission of ASCII data not considered a common bottleneck?

Thanks a lot

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