indexing and document access error

Hi all,
I have defined, in my Tamino Schema, an index on an attribute (called “id”). This performes my xquery but somewhere when I must update or delete some document (or update the same document more then once sequentially), a document access error occurres.
If I undefine the index then there is no problem.
I hope to have exposed the question in clear way.
Every reply is apprecciated, thanks in advance

Pam

Hi all!
The answer is in section “X-Machine Programming — Maintaining Tamino Indexes” of the Tamino documentation.
Regards,

Pam