Ryan Ernst created LUCENE-7453:
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Summary: Change naming of variables/apis from docid to docnum
Key: LUCENE-7453
URL: https://issues.apache.org/jira/browse/LUCENE-7453
Project: Lucene - Core
Issue Type: Improvement
Reporter: Ryan Ernst
In SOLR-9528 a suggestion was made to change {{docid}} to {{docnum}}. The
reasoning for this is most notably that {{docid}} has a connotation about a
persistent unique identifier (eg like {{_id}} in elasticsearch or {{id}} in
solr), while {{docid}} in lucene is currently some local to a segment, and not
comparable directly across segments.
When I first started working on Lucene, I had this same confusion. {{docnum}}
is a much better name for this transient, segment local identifier for a doc.
Regardless of what solr wants to do in their api (eg keeping _docid_), I think
we should switch the lucene apis and variable names to use docnum.
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