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From "Simon Willnauer (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-2694) MTQ rewrite + weight/scorer init should be single pass
Date Thu, 16 Dec 2010 15:59:01 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Simon Willnauer updated LUCENE-2694:
------------------------------------

    Attachment: LUCENE-2694.patch

Attaching current state - all test pass for me and luceneutils brings consistent results with
trunk.

{code}

               Query   QPS trunkQPS termstate  Pct diff
            unit~2.0       14.70       14.39     -2.1%
          united~2.0        6.91        6.83     -1.1%
          united~1.0        7.42        7.38     -0.6%
        "unit state"       12.31       12.37      0.5%
            unit~1.0       15.41       15.49      0.5%
                uni*        7.18        7.22      0.6%
                un*d        7.97        8.04      0.9%
               unit*       12.89       13.09      1.6%
        +unit +state       28.16       28.64      1.7%
    +nebraska +state       81.26       82.67      1.7%
spanNear([unit, state], 10, true)       11.60       11.83      2.0%
               state       40.50       41.47      2.4%
  spanFirst(unit, 5)       47.65       48.84      2.5%
          unit state       17.72       18.19      2.7%
                 u*d        4.27        4.48      5.0%
{code}
those are the results I have for now.... Fuzzy only expands to 50 terms so that might no be
very meaningful. I re-added the TermCache for this patch though... 
Will attach more info tomorrow.

> MTQ rewrite + weight/scorer init should be single pass
> ------------------------------------------------------
>
>                 Key: LUCENE-2694
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2694
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>             Fix For: 4.0
>
>         Attachments: LUCENE-2694.patch, LUCENE-2694.patch, LUCENE-2694.patch
>
>
> Spinoff of LUCENE-2690 (see the hacked patch on that issue)...
> Once we fix MTQ rewrite to be per-segment, we should take it further and make weight/scorer
init also run in the same single pass as rewrite.

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