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https://issues.apache.org/jira/browse/LUCENE-2891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987254#action_12987254
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Michael McCandless commented on LUCENE-2891:
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bq. but it allows next()'ing through all the terms only?
Right.
{quote}
I suggested the testing because I had seen some code for -1 but I didn't know
how tested it is,
{quote}
It's tested inside IW -- for merging, it opens all SRs w/ -1.
bq. its a tad confusing in the javadoc which just says "Set this to -1 to skip
loading the terms index entirely."
I agree -- I think we should sharpen the jdocs to state that this is only
useful in very narrow situations, ie when you are certain you just need to
next() through all terms. (And probably mark this value as
@lucene.experimental... maybe internal?).
> IndexWriterConfig does not allow termInfosDivisor to be -1, while the latest
> indicates TermInfos should not be loaded
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-2891
> URL: https://issues.apache.org/jira/browse/LUCENE-2891
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Reporter: Shai Erera
> Assignee: Shai Erera
> Fix For: 3.1, 4.0
>
> Attachments: LUCENE-2891.patch, LUCENE-2891.patch
>
>
> While you can pass -1 to IR.open(), and it's documented, you cannot do the
> same for IndexWriter's readers (b/c IWC blocks it). Need to allow this
> setting as well as add support for it in our tests, e.g. we should randomly
> set it to -1. Robert also suggested RandomIW use -1 randomly when it opens
> readers.
> I'll work on a patch
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