title: Kettle '?' not working Table Input Step
body: <p>I want to get all the table names from the database and then get all the rows from the tables. So I created a transformation like this:</p>
  
  <p><ol>
  <li>Get Table Names: Added the database connection and stored the table name in a output field called "tablename".  </li>
  <li>Table Input: Marked "Replace variables in script" and "Execute for each row". Added the first step in "Insert data from step". SQL is "SELECT * from ?".<br>
  I have read up a lot of tutorials online, including the <a href="http://wiki.pentaho.com/display/EAI/Table+Input" rel="nofollow">documentation</a>.<br>
  My problem is that everywhere it says that I my "?" should be replaced with the parameter. But this does not happen. Here are the logs:</p>
  
  <blockquote>
    <p>2013/06/22 03:33:25 - Get table names.0 - Starting to run...<br>
    2013/06/22 03:33:25 - Postgres 9.1.9 RO - read :9 table names from db meta-data.<br>
    2013/06/22 03:33:25 - Table input.0 - Query parameters found = [stackexchange2]<br>
    2013/06/22 03:33:25 - Table input.0 - SQL query : SELECT * from ?<br>
    2013/06/22 03:33:25 - Table input.0 - ERROR (version 4.4.0-stable, build 17588 from 2012-11-21 16.02.21 by buildguy) : Unexpected error<br>
    2013/06/22 03:33:25 - Table input.0 - ERROR (version 4.4.0-stable, build 17588 from 2012-11-21 16.02.21 by buildguy) : org.pentaho.di.core.exception.KettleDatabaseException:<br>
    2013/06/22 03:33:25 - Table input.0 - ERROR (version 4.4.0-stable, build 17588 from 2012-11-21 16.02.21 by buildguy) : An error occurred executing SQL:<br>
    2013/06/22 03:33:25 - Table input.0 - ERROR (version 4.4.0-stable, build 17588 from 2012-11-21 16.02.21 by buildguy) : SELECT * from ?<br>
    2013/06/22 03:33:25 - Table input.0 - ERROR (version 4.4.0-stable, build 17588 from 2012-11-21 16.02.21 by buildguy) : ERROR: syntax error at or near "$1"<br>
    Position: 16<br>
    2013/06/22 03:33:25 - Table input.0 - ERROR (version 4.4.0-stable, build 17588 from 2012-11-21 16.02.21 by buildguy) :   </li>
    </ol>
    I am using Kettle 4.4. Downloaded the spoon client from <a href="http://sourceforge.net/projects/pentaho/files/Data%20Integration/4.4.0-stable/" rel="nofollow">here</a>.  </p>
  </blockquote>
  
  <p><strong>UPDATE</strong><br>
  I just want to make this work. I am learning the tool right now, and it would be good to know how '?' works. </p>