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From <Jun.C...@cognizant.com>
Subject RE: How to rename fields in an index
Date Thu, 23 Aug 2007 01:49:54 GMT

Dear Andrzej Bialecki

Can we change the field name in *.fnm directly by hand?

-----Original Message-----
From: Andrzej Bialecki [mailto:ab@getopt.org]
Sent: 2007年8月22日 8:04 下午好,Daniel
To: java-user@lucene.apache.org
Subject: Re: How to rename fields in an index

Antoine Baudoux wrote:
> No, i just want to change the field labels.
>
> For example, i have a "Keyword" field that i want to rename into "kw".

(note: this is a low-level hack, you can damage your index beyond repair).

Take a look at FieldInfos class, and how it creates the *.fnm file for
each segment. You can re-write these fnm files using new field names. In
case of compound indexes you will need to "explode" them first to a
non-compound format.

Make sure you write out these files using exactly the same order of
fields, otherwise you will end up in big trouble ;)


--
Best regards,
Andrzej Bialecki     <><
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