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From "Robert Muir (JIRA)" <>
Subject [jira] [Commented] (LUCENE-4404) Add ListOfOutputs FST Outputs, replacing UpToTwoPositiveIntOutputs
Date Tue, 18 Sep 2012 03:02:08 GMT


Robert Muir commented on LUCENE-4404:

This seems more wasteful than the previous UpToTwo in that it always writes a vInt size?
Is there some way to avoid this?

> Add ListOfOutputs FST Outputs, replacing UpToTwoPositiveIntOutputs
> ------------------------------------------------------------------
>                 Key: LUCENE-4404
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>         Attachments: LUCENE-4404.patch
> Spinoff from LUCENE-3842.  This just generalizes the
> UpToTwoPositiveIntOutputs to a list of any arbitrary output, by
> wrapping any other Outputs impl.  I also made separate methods to
> write/read a node-final output: since list of values can only occur on
> a final node output, this impl optimizes and avoids writing an extra
> byte per label for normal arc labels.
> This also fixes a bug in Builder that was sometimes failing to join
> multiple outputs together.

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