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https://issues.apache.org/jira/browse/LUCENE-3298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13080986#comment-13080986
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Dawid Weiss commented on LUCENE-3298:
-------------------------------------
Absolutely, your code is valuable and I'm sure it'll be handy at some point.
The best solution would be to change the Java spec at some point and allow
larger arrays :)
> FST has hard limit max size of 2.1 GB
> -------------------------------------
>
> Key: LUCENE-3298
> URL: https://issues.apache.org/jira/browse/LUCENE-3298
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/FSTs
> Reporter: Michael McCandless
> Priority: Minor
> Attachments: LUCENE-3298.patch
>
>
> The FST uses a single contiguous byte[] under the hood, which in java is
> indexed by int so we cannot grow this over Integer.MAX_VALUE. It also
> internally encodes references to this array as vInt.
> We could switch this to a paged byte[] and make the far larger.
> But I think this is low priority... I'm not going to work on it any time soon.
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