InsertQuery   (children 2)
 Identifier set_array
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 2)
     Function toString (alias primary_key) (children 1)
      ExpressionList (children 1)
       Function intDiv (children 1)
        ExpressionList (children 2)
         Identifier number
         Literal UInt64_100000
     Function array (alias index_array) (children 1)
      ExpressionList (children 1)
       Identifier number
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier system.numbers
    Literal UInt64_1000000