SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 6)
   ExpressionList (children 2)
    Identifier n (alias m)
    Function count (alias cnt) (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t
   Function in (children 1)
    ExpressionList (children 2)
     Identifier st
     Literal Tuple_(\'x\', \'y\')
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier ALL
   Literal UInt64_1
   ExpressionList (children 1)
    Identifier m
