SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function countIf (children 1)
     ExpressionList (children 1)
      Function multiIf (children 1)
       ExpressionList (children 3)
        Function less (children 1)
         ExpressionList (children 2)
          Identifier number
          Literal UInt64_2
        Literal NULL
        Function if (children 1)
         ExpressionList (children 3)
          Function equals (children 1)
           ExpressionList (children 2)
            Identifier number
            Literal UInt64_4
          Literal UInt64_1
          Literal UInt64_0
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_5
