title: 'tags' in logstash modifying 'tags' column from sql query
body: <p>I have a LogStash setup that will fetch data from Postgres. The problem is, I have a column called &quot;tags&quot; in SQL which is an array of strings. But during the insertion of data, the Logstash will append the &quot;Logstash tag&quot; into the tags array of my column. Is there any way to override that?</p>
  <pre><code>jdbc {
  tags =&gt; &quot;color_list&quot;
  jdbc_connection_string =&gt; &quot;jdbc:postgresql://${DB_HOST}:${DB_PORT}/${DB_NAME}&quot;
  jdbc_user =&gt; &quot;${DB_USER}&quot;
  jdbc_password =&gt; &quot;${DB_PASSWORD}&quot;
  schedule =&gt; &quot;* * * * *&quot;
  jdbc_driver_class =&gt; &quot;org.postgresql.Driver&quot;
  statement =&gt; &quot;SELECT tags
      from color_table;&quot;
  </code></pre>
  <p>In my table, the tags column is empty. So I am expecting an empty array. But am receiving <code>[color_list]</code> instead of <code>[]</code>. Is there any way to override that?</p>