InsertQuery   (children 2)
 Identifier t_ind_merge_1
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 4)
     Identifier number
     Identifier number
     Function rand (children 1)
      ExpressionList
     Function rand (children 1)
      ExpressionList
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_1000
