lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Shawn Heisey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-7960) NGram filters -- add option to keep short terms
Date Thu, 03 May 2018 00:32:00 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-7960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16461777#comment-16461777
] 

Shawn Heisey commented on LUCENE-7960:
--------------------------------------

The one thing that I do not know is whether an added argument with the ellipsis notation preserves
API compatibility.  If we did that, would a program originally compiled against an older Lucene
version still work correctly with the added parameter?

I know that everything would be fine if the program were re-compiled.  Which I think technically
meets our overall goal for a minor release, but preserving binary compatibility when possible
is a good bonus.

> NGram filters -- add option to keep short terms
> -----------------------------------------------
>
>                 Key: LUCENE-7960
>                 URL: https://issues.apache.org/jira/browse/LUCENE-7960
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: modules/analysis
>            Reporter: Shawn Heisey
>            Priority: Major
>         Attachments: LUCENE-7960.patch, LUCENE-7960.patch
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> When ngram or edgengram filters are used, any terms that are shorter than the minGramSize
are completely removed from the token stream.
> This is probably 100% what was intended, but I've seen it cause a lot of problems for
users.  I am not suggesting that the default behavior be changed.  That would be far too disruptive
to the existing user base.
> I do think there should be a new boolean option, with a name like keepShortTerms, that
defaults to false, to allow the short terms to be preserved.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message