title: How to use \copy in postgresql with pgadmin4
body: <p>I want to use the <code>\copy</code> command to make csv file with relative path.
  I used a query to make from test table to csv file named test.csv</p>
  
  <pre><code>\copy (SELECT * FROM test) to './test.csv' with csv
  </code></pre>
  
  <p>But in postgresql pgadmin4, it shows that <code>\copy</code> command as a syntax error (there is an underline under the word '\copy') and shows a message like below.</p>
  
  <blockquote>
  <pre><code>ERROR:  syntax error at or near "/"
  LINE 2: /copy (SELECT * FROM test) to './persons_client.csv' with cs...
          ^
  ********** Error **********
  
  ERROR: syntax error at or near "/"
  SQL state: 42601
  Character: 2
  </code></pre>
  </blockquote>
  
  <p>How can I solve this problem?</p>