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https://issues.apache.org/jira/browse/LUCENE-9365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17101769#comment-17101769
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Mark Harwood edited comment on LUCENE-9365 at 5/7/20, 3:18 PM:
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Ignore last comment - I'm reverting that change because we can't fall back to a
RegExp query with the user's search string without escaping it. It may contain
illegal search syntax. Will re-think the approach and open another PR.
was (Author: markh):
Ignore last comment - I've reverting that change because we can't fall back to
a RegExp query with the user's search string without escaping it. It may
contain illegal search syntax. Will re-think the approach and open another PR.
> Fuzzy query has a false negative when prefix length == search term length
> --------------------------------------------------------------------------
>
> Key: LUCENE-9365
> URL: https://issues.apache.org/jira/browse/LUCENE-9365
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/query/scoring
> Reporter: Mark Harwood
> Priority: Major
>
> When using FuzzyQuery the search string `bba` does not match doc value `bbab`
> with an edit distance of 1 and prefix length of 3.
> In FuzzyQuery an automaton is created for the "suffix" part of the search
> string which in this case is an empty string.
> In this scenario maybe the FuzzyQuery should rewrite to a WildcardQuery of
> the following form :
> {code:java}
> searchString + "?"
> {code}
> .. where there's an appropriate number of ? characters according to the edit
> distance.
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