InsertQuery   (children 2)
 Identifier moving_sum_num
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 3)
     Literal \'b\' (alias k)
     Function plus (alias dt) (children 1)
      ExpressionList (children 2)
       Function toDateTime (children 1)
        ExpressionList (children 1)
         Literal \'2001-02-03 01:00:00\'
       Identifier number
     Function plus (alias v) (children 1)
      ExpressionList (children 2)
       Literal UInt64_5
       Identifier number
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier system.numbers
    Literal UInt64_5