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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-5156) CompressingTermVectors termsEnum should probably not support seek-by-ord
Date Tue, 06 Aug 2013 11:46:48 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-5156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13730673#comment-13730673
] 

Michael McCandless commented on LUCENE-5156:
--------------------------------------------

+1
                
> CompressingTermVectors termsEnum should probably not support seek-by-ord
> ------------------------------------------------------------------------
>
>                 Key: LUCENE-5156
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5156
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Robert Muir
>         Attachments: LUCENE-5156.patch
>
>
> Just like term vectors before it, it has a O(n) seek-by-term. 
> But this one also advertises a seek-by-ord, only this is also O(n).
> This could cause e.g. checkindex to be very slow, because if termsenum supports ord it
does a bunch of seeking tests. (Another solution would be to leave it, and add a boolean so
checkindex never does seeking tests for term vectors, only real fields).
> However, I think its also kinda a trap, in my opinion if seek-by-ord is supported anywhere,
you kinda expect it to be faster than linear time...?

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