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https://issues.apache.org/jira/browse/LUCENE-9740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dawid Weiss resolved LUCENE-9740.
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Fix Version/s: master (9.0)
Resolution: Fixed
> Avoid buffering and double-scan of flags in *.aff file
> ------------------------------------------------------
>
> Key: LUCENE-9740
> URL: https://issues.apache.org/jira/browse/LUCENE-9740
> Project: Lucene - Core
> Issue Type: Sub-task
> Reporter: Dawid Weiss
> Assignee: Dawid Weiss
> Priority: Minor
> Fix For: master (9.0)
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> I wrote a small utility test to scan through all the *.aff files from
> openoffice and woorm - no file has double flags (SET or FLAG) and maximum
> leading offsets until these flags appear are roughly:
> {code}
> Flag SET at maximum offset 10753
> Flag FLAG at maximum offset 4559
> {code}
> I think we could just make an assumption that, say, affix files are read with
> an 20kB buffered reader and this provides a maximum leading window for
> scanning for those flags. The dictionary parsing could also fail if any of
> these flags occurs more than once in the input file?
> This would avoid having to read the file twice and perhaps simplify the API
> (no need for a temporary spill).
> I'll piggyback this test as part of LUCENE-9727 if you'd like to re-run it
> locally.
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