_WA_SYS% indexes

Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
sysindexes impact performance on update, delete or insert?
Any answer will be helpful.
Thanks
Tarlo
No, These are not indexes, they don't have a b-tree associated with them, don't store any data.
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
http://www.sqlug.se/
"Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
> sysindexes impact performance on update, delete or insert?
> Any answer will be helpful.
> Thanks
> Tarlo
|||Thanks a bunch it helps.
Regards
Tarlo
"Tibor Karaszi" wrote:

> No, These are not indexes, they don't have a b-tree associated with them, don't store any data.
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
> http://www.sqlug.se/
>
> "Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
> news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
>
>