SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier bar
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier foo
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier id
   Function greater (children 1)
    ExpressionList (children 2)
     Identifier bar.seq
     Identifier foo.seq
   Set
