SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 6)
    Function toUInt8 (alias u) (children 1)
     ExpressionList (children 1)
      Literal UInt64_255
    Function toInt8 (alias s) (children 1)
     ExpressionList (children 1)
      Literal UInt64_127
    Function fromDaysSinceYearZero (children 1)
     ExpressionList (children 1)
      Identifier u
    Function fromDaysSinceYearZero32 (children 1)
     ExpressionList (children 1)
      Identifier u
    Function fromDaysSinceYearZero (children 1)
     ExpressionList (children 1)
      Identifier s
    Function fromDaysSinceYearZero32 (children 1)
     ExpressionList (children 1)
      Identifier s