SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function caseWithExpression (children 1)
     ExpressionList (children 6)
      Literal UInt64_1
      Literal UInt64_1
      Literal UInt64_2
      Literal UInt64_1
      Literal UInt64_4
      Literal NULL
