title: Cascading left outer joins
body: <p>What is the correct syntax to perform an outer join with the following requirements:</p>
  
  <p>A left outer join B on A.c1 = B.c1<br>
  B left outer join C on B.c2 = C.c2<br>
  A left outer join D on A.c1 = D.c1  </p>
  
  <p>So A, B, and C cascade and A and D cascade.</p>
  
  <p>I know how to write the A->B->C but I don't know how to add D. I need scope or parenthesis or something.</p>