SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function length (children 1)
     ExpressionList (children 1)
      Function groupUniqArrayIf (children 1)
       ExpressionList (children 2)
        Identifier d
        Function notEquals (children 1)
         ExpressionList (children 2)
          Identifier d
          Function hex (children 1)
           ExpressionList (children 1)
            Literal UInt64_0
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier arena
   ExpressionList (children 1)
    Identifier k
