title: replace string with split_part function
body: <p>I want to replace the first word before delimeter ' ,' with ' 0, the first word ')</p>
  
  <pre><code>select replace('tab,graph,map', split_part('tab,graph', ',', 1) like 'tab','0, tab')
  </code></pre>
  
  <p>ERROR:  function replace(unknown, boolean, unknown) does not exist
  LINE 1: select replace('tab,graph,map', split_part('tab,graph', ',',...
                 ^
  HINT:  No function matches the given name and argument types. You might need to add explicit type casts.</p>