_hypmv error

I just tried to update a column type from varchar(32) to varchar(64) in a
table,but got some dependency error like:
The object '_hypmv_0' is dependent on column 'EMAILREFERENCE'.
The object '_hypmv_0_9625' is dependent on column 'EMAILREFERENCE'.
The object '_hypmv_0_7898' is dependent on column 'EMAILREFERENCE'.
The object '_hypmv_0_6539' is dependent on column 'EMAILREFERENCE'.
But,in the dependency listing for the table I cant view any of the above,but
I have
got admin access.What are these dependecies for?any pointer will be greatly
appreciated.A wild guess is that someone has been running Index Tuning izard which has created "Hypothetical
Materialized Views" (called Indexed Views), and these from some reason haven't been dropped. I'd
check if these are views and if your applications aren't using these, consider dropping them, using
DROP VIEW command.
--
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
"c_ani" <cani@.discussions.microsoft.com> wrote in message
news:53B89EB6-C82A-49B2-96C2-84A98CB02FC0@.microsoft.com...
>I just tried to update a column type from varchar(32) to varchar(64) in a
> table,but got some dependency error like:
> The object '_hypmv_0' is dependent on column 'EMAILREFERENCE'.
> The object '_hypmv_0_9625' is dependent on column 'EMAILREFERENCE'.
> The object '_hypmv_0_7898' is dependent on column 'EMAILREFERENCE'.
> The object '_hypmv_0_6539' is dependent on column 'EMAILREFERENCE'.
> But,in the dependency listing for the table I cant view any of the above,but
> I have
> got admin access.What are these dependecies for?any pointer will be greatly
> appreciated.