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https://issues.apache.org/jira/browse/LUCENE-1793?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741241#action_12741241
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Robert Muir commented on LUCENE-1793:
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DM, you are right this is a better discussion for another issue/place
I was concerned that we would be taking functionality away, but this is not the
case, as Uwe says it is only "strange".
I just looked at all these encodings: they are all storing characters in the
extended ascii range (> 0x7F)
Therefore, anyone using this strange encoding support is using 2 bytes per
character already!
For example someone using CP1251 in the russian analyzer is simply storing Ж as
0xC6, its being represented as Æ. (2 bytes in UTF-8)
So, by deprecating these encodings for unicode, nobody's index size will
double...
> remove custom encoding support in Greek/Russian Analyzers
> ---------------------------------------------------------
>
> Key: LUCENE-1793
> URL: https://issues.apache.org/jira/browse/LUCENE-1793
> Project: Lucene - Java
> Issue Type: Improvement
> Components: contrib/analyzers
> Reporter: Robert Muir
> Priority: Minor
> Attachments: LUCENE-1793.patch
>
>
> The Greek and Russian analyzers support custom encodings such as KOI-8, they
> define things like Lowercase and tokenization for these.
> I think that analyzers should support unicode and that conversion/handling of
> other charsets belongs somewhere else.
> I would like to deprecate/remove the support for these other encodings.
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