: If you cannot do this for whatever reason, I vaguely remember someone : posting a link to a program they'd put together to do this for a : docValues field, you'd have to search the archives to find it.
It was Toke - he generated DocValues for an existing index by writing an IndexReader Filter that would "fake" the DocValues based on the value of a Stored field, and used that fake for a one time "copy" of the IndexReader into a new index (where the docValues were written "for real")... https://sbdevel.wordpress.com/2014/12/15/changing-field-type-in-lucenesolr/ https://github.com/netarchivesuite/dvenabler ...if all you care about is generating *some* uniqueId field value for each doc, you could do the same thing fairly efficiently, skipping the stored field reading and just using a global counter. -Hoss http://www.lucidworks.com/ --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
