title: How to specify a tab in a postgres front-end COPY
body: <p>I would like to use the psql "\copy" command to pull data from a tab-delimited file into Postgres.  I'm using this command:</p>
  
  <pre><code>\copy cm_state from 'state.data' with delimiter '\t' null as ;
  </code></pre>
  
  <p>But I'm getting this warning (the table actually loads fine):</p>
  
  <pre><code>WARNING:  nonstandard use of escape in a string literal
  LINE 1: COPY cm_state FROM STDIN DELIMITER '\t' NULL AS ';'
  HINT:  Use the escape string syntax for escapes, e.g., E'\r\n'.
  </code></pre>
  
  <p>How do I specify a tab if '\t' is not correct?</p>