See https://issues.apache.org/jira/browse/LUCENE-8551
The main thing missing is that the stored fields data doesn't actually store what IDs are being used (!). If that were in place, I could imagine a CLI tool to purge the IDs. ~ David Smiley Apache Lucene/Solr Search Developer http://www.linkedin.com/in/davidwsmiley On Mon, Mar 9, 2020 at 2:53 PM Michael Kleen <[email protected]> wrote: > Hello, > > i am interested in the implementation of the field removal from an index. > I am a Lucene user and I have a basic understanding of the internals. I > have a few first questions and I hope this is the right place to ask them. > > Is already someone working on this topic ? > > Are there some real blockers for this feature ? > > From my basic understanding, field removal should work conceptually in the > following way: The FieldInfo which is supposed to be removed would need to > be first stored until the segment merge is happening. Once the segment > merge is happening the field has to excluded from the new segment. Is this > correct, or do I miss something here ? > > Thank you for your time, > > Michael >
