title: What is the right way to define annotation for DECIMAL type in Doctrine2
body: <p>I have a column in my table with <code>DECIMAL(19,4)</code> and I'm creating my Entity for a project, what is the right way to define this field? What <strong>precision</strong> and <strong>scale</strong> parameters means in <a href="http://docs.doctrine-project.org/en/2.0.x/reference/annotations-reference.html" rel="noreferrer">Doctrine Annotations</a>? </p>