[jira] [Comment Edited] (LUCENE-6393) SpanFirstQuery sometimes returns Spans without any positions

["Paul Elschot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-6393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14395797#comment-14395797 ] 

Paul Elschot edited comment on LUCENE-6393 at 4/4/15 4:22 PM:
--------------------------------------------------------------

Patch of 4 April 2015.
This removes the asTwoPhaseIterator method in FilterSpans.java and the @AwaitsFix lines in /TestSpanSearchEquivalence.
The patch also deletes TestFilterSpans, which only repeats checks already done by the compiler.


was (Author: paul.elschot@xs4all.nl):
Patch of 4 April 2015.
This removes the asTwoPhaseIterator method in FilterSpans.java and the @AwaitsFix lines in /TestSpanSearchEquivalence.
The patch also deletes TestFilterSpans, which only repeats checks done by the compiler does not do already.

> SpanFirstQuery sometimes returns Spans without any positions
> ------------------------------------------------------------
>
>                 Key: LUCENE-6393
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6393
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Robert Muir
>             Fix For: Trunk, 5.2
>
>         Attachments: LUCENE-6393-alternative.patch, LUCENE-6393.patch, LUCENE-6393.patch
>
>
> This hits an assert in SpanScorer because it breaks the javadocs contract of Spans.nextStartPosition():
>    * Returns the next start position for the current doc.
>    * There is always *at least one start/end position* per doc.
>    * After the last start/end position at the current doc this returns NO_MORE_POSITIONS.



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