Recover archived conversations from mysqldump

Hey, people.

Last week i had a problem with my Openfire server and the application crashes.

I recovered one backup file, and my users, groups and conversations is in the database. But, one issue is making me crazy.

I have on table ofMessageArchive 234.415 registries, the size is 78.1MiB, but only 861 registries is shown.

What i have to do to reindex my archived conversations?

Thanks in advance.

Fabio