title: MySQL min/max for DOUBLE type
body: <p>The <a href="http://dev.mysql.com/doc/refman/5.1/en/numeric-type-overview.html" rel="noreferrer">MySQL documentation for the DOUBLE type</a> is really opaque as to what the minimum and maximum values are.</p>
  
  <blockquote>
    <p>Permissible values are -1.7976931348623157E+308 to -2.2250738585072014E-308, 0, and 2.2250738585072014E-308 to 1.7976931348623157E+308.</p>
  </blockquote>
  
  <p>This doesn't make sense to me. Maybe I'm being a mathtard, but I'm not understanding this. There appears to be two possible ranges and zero.</p>