I have a timestamp field in my schema to track when each doc was indexed: <field name="timestamp" type="date" indexed="true" stored="true" default="NOW" multiValued="false" />
Recently, we have switched over to use atomic update instead of re-indexing when we need to update a doc in the index. It looks to me that the timestamp field is not updated during an atomic update. I have also looked into TimestampUpdateProcessorFactory and it looks to me that won't help in my case. Is there anything within Solr that I can use to update the timestamp during atomic update, or do I have to explicitly include the timestamp field as part of the atomic update? Bill