Postgres column doesn't exist error on update : <p>I am trying to run the query below but I am getting an error <strong>ERROR:  column "test.pdf" does not exist</strong> . I dont know why I am getting this error. I search for various links on stackover but none solved my problem like this <a href="https://stackoverflow.com/questions/33614625/postgresql-query-column-does-not-exist/33614701">PostgreSQL query -- column does not exist</a>, <a href="https://stackoverflow.com/questions/30764963/postgres-error-updating-column-data">Postgres error updating column data</a>. Please help me find the problem. </p>

<p>bill is a type string field in bills table.</p>

<pre><code>update bills 
 set bill = "test.pdf" 
where id=3;
</code></pre>
