SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Identifier c0
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t1_dist (alias tx)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t0
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier c2
