appears you are targeting 9.0 for your code
lucene/core/src/java/org/apache/lucene/codecs/lucene90/Lucene90FieldInfosFormat.java<
https://github.com/dashbase/lucene-solr/pull/1/files#diff-224246aa19a54dd91fc495a6bbf7d75b26dbeaa3aceab058214d68fcbb38d24c>
(Lucene90FIeldInfosFormat.java is not contained in either 8.4 or 8.7 distros)
<RANT>
someone had the bright idea to nuke ant 8.x build.xml without consulting anyone
not a fan of ant but the execution model of gradle is woefully inflexible in comparison to maven
</RANT>
i will try with 90 distro to get the codecs/lucene90/Lucene90FieldInfosFormat and recompile and hopefully your TestLucene84PostingsFormat will run w/o fail or error
Thx
martin-
________________________________
From: John Wang <john.wang@gmail.com>
Sent: Wednesday, January 6, 2021 10:15 AM
To: dev@lucene.apache.org <dev@lucene.apache.org>
Subject: Re: additional term meta data
Hey Martin:
There is a test case in the PR we created on our own fork:
https://github.com/dashbase/lucene-solr/pull/1, which also contains some example code on how to access in the PR description.
Here is the link to the beginning of the tests:
https://github.com/dashbase/lucene-solr/blob/posting-last-docid/lucene/core/src/test/org/apache/lucene/codecs/lucene84/TestLucene84PostingsFormat.java#L142 I am not sure which version this should be applied to, currently, it was based on master as of a few days ago. We intend to patch 8.7 for our own environment.
Any advice or feedback is much appreciated.
Thank you!
-John
On Wed, Jan 6, 2021 at 3:28 AM Martin Gainty <mgainty@hotmail.com<mailto:mgainty@hotmail.com>> wrote:
how to access first and last?
which version will you be merging
________________________________
From: John Wang <john.wang@gmail.com<mailto:john.wang@gmail.com>>
Sent: Tuesday, January 5, 2021 8:19 PM
To: dev@lucene.apache.org<mailto:dev@lucene.apache.org> <dev@lucene.apache.org<mailto:dev@lucene.apache.org>>
Subject: additional term meta data
Hi folks:
We like to propose a feature to add additional per-term metadata to the term diction.
Currently, the TermsEnum API returns docFreq as its only meta-data. We needed a way to quickly get the first and last doc id in the postings without having to scan through the entire postings list.
We have created a PR on our own fork and we would like to contribute this back to the community. Please let us know if this is something that's useful and/or fits Lucene's roadmap, we would be happy to submit a patch.
https://github.com/dashbase/lucene-solr/pull/1 Thank you
-John