title: Defining multi-line strings in psql
body: <p>I would like to paste</p>
  
  <pre><code>  123
    456
    789
  </code></pre>
  
  <p>into <code>psql</code> and to store multi-line string in some variable (ie. <code>:str</code>) for later use. </p>
  
  <p>Is that possible? Now I'm getting <code>unterminated quoted string</code> error.</p>