InsertQuery   (children 3)
 Identifier test_ttl_group_by01763
 ExpressionList (children 3)
  Identifier key
  Identifier ts
  Identifier value
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 3)
     Function modulo (alias key) (children 1)
      ExpressionList (children 2)
       Identifier number
       Literal UInt64_5
     Function plus (children 1)
      ExpressionList (children 2)
       Function minus (children 1)
        ExpressionList (children 2)
         Function now (children 1)
          ExpressionList
         Function toIntervalMonth (children 1)
          ExpressionList (children 1)
           Literal UInt64_2
       Identifier number
     Literal UInt64_3
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_1000
