title: Postgres/netezza multiple join from multiple tables
body: <p>Hi I have a problem when migrating from ORACLE to Netezza, netezza seems to have problem if multiple tables is declared before using JOIN`s. How could I write this join differently ? </p>
  
  <pre><code>INSERT INTO...
  SELECT...
  FROM table1 t1, table2 t2   //here seems to be the problem as postgres dont allow to put two tables in FROM clause if there are JOIN`s involved
  JOIN talbe3 t3 ON t2.column = t3.column
  JOIN table4 t4 ON t2.column = t4.column
  LEFT OUTER JOIN table5 t5 ON (t4.column=t5.column AND t4.column=t2.column AND t4.column=t3.column)
  
  WHERE....;    
  </code></pre>