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https://issues.apache.org/jira/browse/LUCENE-8249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16435691#comment-16435691
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Alan Woodward commented on LUCENE-8249:
---------------------------------------
Here's the benchmark. Looks like noise to me...
{code}
TaskQPS baseline StdDevQPS my_modified_version StdDev
Pct diff
Wildcard 1714.40 (4.9%) 1622.18 (6.1%)
-5.4% ( -15% - 5%)
Fuzzy2 76.05 (23.2%) 72.75 (20.2%)
-4.3% ( -38% - 50%)
HighPhrase 889.67 (6.3%) 862.68 (10.8%)
-3.0% ( -18% - 15%)
HighTermDayOfYearSort 1068.15 (6.0%) 1037.75 (8.1%)
-2.8% ( -15% - 11%)
OrHighLow 2594.37 (7.1%) 2524.49 (4.7%)
-2.7% ( -13% - 9%)
MedSloppyPhrase 902.87 (3.4%) 885.25 (4.1%)
-2.0% ( -9% - 5%)
HighTerm 4674.62 (6.2%) 4588.81 (7.0%)
-1.8% ( -14% - 12%)
AndHighMed 1068.36 (4.8%) 1050.54 (5.4%)
-1.7% ( -11% - 8%)
IntNRQ 1422.34 (3.8%) 1404.61 (3.7%)
-1.2% ( -8% - 6%)
AndHighLow 2882.77 (8.0%) 2846.86 (8.7%)
-1.2% ( -16% - 16%)
OrHighMed 1306.57 (7.5%) 1290.96 (5.4%)
-1.2% ( -13% - 12%)
LowPhrase 1326.18 (4.7%) 1311.07 (4.4%)
-1.1% ( -9% - 8%)
OrHighHigh 1073.53 (4.8%) 1062.65 (3.7%)
-1.0% ( -9% - 7%)
LowSloppyPhrase 1018.38 (2.5%) 1009.19 (4.6%)
-0.9% ( -7% - 6%)
Respell 366.92 (6.4%) 363.89 (9.0%)
-0.8% ( -15% - 15%)
HighTermMonthSort 3319.32 (6.1%) 3307.84 (6.2%)
-0.3% ( -11% - 12%)
AndHighHigh 1023.89 (5.3%) 1020.61 (5.4%)
-0.3% ( -10% - 10%)
LowSpanNear 1309.70 (5.7%) 1305.85 (8.1%)
-0.3% ( -13% - 14%)
HighSloppyPhrase 664.01 (3.7%) 663.67 (5.2%)
-0.1% ( -8% - 9%)
PKLookup 374.03 (5.5%) 373.96 (6.3%)
-0.0% ( -11% - 12%)
Fuzzy1 386.18 (4.1%) 388.21 (5.2%)
0.5% ( -8% - 10%)
MedSpanNear 1217.07 (4.4%) 1226.70 (5.7%)
0.8% ( -8% - 11%)
HighSpanNear 641.59 (18.0%) 648.32 (22.7%)
1.0% ( -33% - 50%)
MedPhrase 999.35 (3.1%) 1011.72 (5.7%)
1.2% ( -7% - 10%)
LowTerm 5747.36 (7.2%) 5835.87 (6.4%)
1.5% ( -11% - 16%)
MedTerm 5195.74 (5.2%) 5290.94 (6.4%)
1.8% ( -9% - 14%)
Prefix3 587.71 (8.6%) 601.34 (9.5%)
2.3% ( -14% - 22%)
{code}
> Add matches to exact PhraseQuery and MultiPhraseQuery
> -----------------------------------------------------
>
> Key: LUCENE-8249
> URL: https://issues.apache.org/jira/browse/LUCENE-8249
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Attachments: LUCENE-8249.patch
>
>
> ExactPhraseScorer can be rejigged fairly easily to expose a MatchesIterator
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