InsertQuery   (children 2)
 Identifier dict_src_big
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 3)
     Identifier number (alias id)
     Function toString (alias grp) (children 1)
      ExpressionList (children 1)
       Identifier number
     Function toString (alias grp_round) (children 1)
      ExpressionList (children 1)
       Function modulo (children 1)
        ExpressionList (children 2)
         Identifier number
         Literal UInt64_2000
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_100000
