SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 3)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t2
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t2 (alias tx)
     TableJoin (children 1)
      Literal Bool_1
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t1
     TableJoin (children 1)
      Literal Bool_1
