Hi,
Has there been any action on the idea for a @JoinTableIndexes annotation as suggested in http://opensource.atlassian.com/projects/hibernate/browse/ANN-630?

nobody answered my question in the case, so no.

@JoinTableIndexes would be very useful.

The generated association tables do not have a Primary Key when the associations/collections are not indexed (with @IndexColumn).

In that case, the appropriate Foreign Keys are generated (as indicated by Len Trigg on the other forum), but Hibernate won't create indexes on the corresponding columns.

Until a proper solution is available, indexing the associations/collections may be an acceptable workaround. It would avoid the burden of creating the column indexes manually, and the join performance improvement would largely compensate for the update performance hit in most cases. This trick however requires to turn Set properties into List properties.