title: Create temporary rows in mysql
body: <p>Well, I want to do a Flash AS3 Chat.</p>
  
  <p>When the user send a message, the message will be created as a row in mysql with PHP, but if it be so, the mysql server will be very busy, then the row must be temporary.</p>
  
  <p>Someone can help me? ^^' Thanks and sorry for my bad english!</p>