title: Accessing stored procedures from views on Firebird 2.1
body: <p>I've this query for view:</p>
  
  <pre><code>SELECT BATCH, BS.FIELD1, BS.FIELD2 
  from BATCHES 
  left join P_BATCH_SUMMARY(BATCH) BS on 1=1
  </code></pre>
  
  <p>It works fine with Firebird 2.5, but not not on Firebird 2.1. Is it possible to circumvent this limitation with FB2.1?</p>