SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function format (children 1)
       ExpressionList (children 3)
        Identifier TSV
        Literal \'x UInt32, y UInt32\'
        Literal \'1\\t1\\n2\\n\\n3\\t3\\t3\\t3\'
   Set
