GitHub user s1monw opened a pull request:
https://github.com/apache/lucene-solr/pull/502
LUCENE-8569: Never count soft-deletes if reader has no hard-deletes
Today we count the actual soft-deletes during a merge which is
unnecessary if there are no hard-deletes present. In this case, which
is considered to be the common case we can get accurate counts by
substracting
the number of deleted docs in the wrapped reader from the number of
soft-deletes
in that reader.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/s1monw/lucene-solr only_count_if_hard_deletes
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/lucene-solr/pull/502.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #502
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commit 87f571610c2f6cfdaa226c6121191c2e656bd13e
Author: Simon Willnauer <simonw@...>
Date: 2018-11-20T11:56:20Z
LUCENE-8569: Never count soft-deletes if reader has no hard-deletes
Today we count the actual soft-deletes during a merge which is
unnecessary if there are no hard-deletes present. In this case, which
is considered to be the common case we can get accurate counts by
substracting
the number of deleted docs in the wrapped reader from the number of
soft-deletes
in that reader.
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