SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Literal UInt64_1
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t0 (alias tx)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier t0
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier tx.c0
        Identifier t0.c0
