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https://issues.apache.org/jira/browse/LUCENE-7311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311949#comment-15311949
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Robert Muir commented on LUCENE-7311:
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I think this is too invasive of an optimization? Already the term-handling code
in these queries (and this is by far the simplest one) is too much, I think
"something has to give" to make the world a simpler place before we decide to
do these kinds of optimizations? For example removal of
querynorm/classicsimilarity could really start to simplify Weight.
> TermWeight shoud seek terms lazily
> ----------------------------------
>
> Key: LUCENE-7311
> URL: https://issues.apache.org/jira/browse/LUCENE-7311
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-7311.patch
>
>
> Currently the terms are seeked eagerly in TermQuery.createWeight when
> creating the TermContext. This might be wasteful when scores are not needed
> since the query might be cached on some segments, thus seeking the term on
> these segments is not needed. We could change TermWeight to only seek terms
> in Weight.scorer when scores are not needed.
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