SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 3)
    Identifier f1
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier f3
      Literal \'2\'
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t1
   ExpressionList (children 2)
    Literal UInt64_1
    Literal UInt64_2
   ExpressionList (children 2)
    OrderByElement (children 1)
     Literal UInt64_1
    OrderByElement (children 1)
     Literal UInt64_2
