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https://issues.apache.org/jira/browse/LUCENE-9130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17017895#comment-17017895
]
Chen Zhixiang commented on LUCENE-9130:
---------------------------------------
Lucene SloppyPhraseMatcher.java
public boolean nextMatch() throws IOException {
if (!positioned) {
return false;
}
PhrasePositions pp = pq.pop();
assert pp != null; // if the pq is not full, then positioned == false
captureLead(pp);
matchLength = end - pp.position;
int next = pq.top().position;
while (advancePP(pp)) {
if (hasRpts && !advanceRpts(pp)) {
break; // pps exhausted
}
if (pp.position > next) { // done minimizing current match-length
pq.add(pp);
if (matchLength <= slop) {
return true;
}
pp = pq.pop();
next = pq.top().position;
assert pp != null; // if the pq is not full, then positioned == false
matchLength = end - pp.position;
} else {
int matchLength2 = end - pp.position;
if (matchLength2 < matchLength) {
matchLength = matchLength2;
}
}
captureLead(pp);
}
positioned = false;
return matchLength <= slop;
}
Condition while (advancePP(pp)) doesn't match, and directly skip,
matchLength=3, slop=2, so return false.
I believe here exists a bug, but i cannot figure out why.
> Failed to match when create PhraseQuery with terms analyzed from long query
> text
> --------------------------------------------------------------------------------
>
> Key: LUCENE-9130
> URL: https://issues.apache.org/jira/browse/LUCENE-9130
> Project: Lucene - Core
> Issue Type: Bug
> Components: core/search
> Affects Versions: 8.4
> Reporter: Chen Zhixiang
> Priority: Major
> Attachments: LongTextFieldSearchTest.java
>
>
> When i use a long text (which is euqual to doc's StringField at indexing
> time) to build a PhraseQuery, i cannot match the document. But BooleanQuery
> with MUST/AND mode successes.
>
> long query text is a address string:
> "申长路988弄虹桥万科中心地下停车场LG2层2179-2184车位(锡虹路入,LG1层开到底下LG2)"
> test case is attached.
> logs:
>
> 15:46:11.940 [main] INFO test.LongTextFieldSearchTest - indexed terms: 开, 层,
> 心, 弄, 万, 停车场, 地下, 科, 虹桥, 底下, 锡, 入, 2184, 中, 路, 到, 1, 2, 申, 2179, 车位, 988, 虹,
> lg, 长
> 15:46:11.956 [main] INFO test.LongTextFieldSearchTest - terms: 申, 长, 路, 988,
> 弄, 虹桥, 万, 科, 中, 心, 地下, 停车场, lg, 2, 层, 2179, 2184, 车位, 锡, 虹, 路, 入, lg, 1, 层,
> 开, 到, 底下, lg, 2
> 15:46:11.962 [main] INFO test.LongTextFieldSearchTest - query: +(+address:申
> +address:长 +address:路 +address:988 +address:弄 +address:虹桥 +address:万
> +address:科 +address:中 +address:心 +address:地下 +address:停车场 +address:lg
> +address:2 +address:层 +address:2179 +address:2184 +address:车位 +address:锡
> +address:虹 +address:路 +address:入 +address:lg +address:1 +address:层 +address:开
> +address:到 +address:底下 +address:lg +address:2)
> 15:46:11.988 [main] INFO test.LongTextFieldSearchTest -
> results.totalHits.value=1
> 15:46:12.181 [main] INFO test.LongTextFieldSearchTest - indexed terms: 开, 层,
> 心, 弄, 万, 停车场, 地下, 科, 虹桥, 底下, 锡, 入, 2184, 中, 路, 到, 1, 2, 申, 2179, 车位, 988, 虹,
> lg, 长
> 15:46:12.185 [main] INFO test.LongTextFieldSearchTest - terms: 申, 长, 路, 988,
> 弄, 虹桥, 万, 科, 中, 心, 地下, 停车场, lg, 2, 层, 2179, 2184, 车位, 锡, 虹, 路, 入, lg, 1, 层,
> 开, 到, 底下, lg, 2
> 15:46:12.188 [main] INFO test.LongTextFieldSearchTest - query: +address:"申 长
> 路 988 弄 虹桥 万 科 中 心 地下 停车场 lg 2 层 2179 2184 车位 锡 虹 路 入 lg 1 层 开 到 底下 lg 2"~2
> 15:46:12.210 [main] INFO test.LongTextFieldSearchTest -
> results.totalHits.value=0
> 15:46:12.214 [main] INFO test.LongTextFieldSearchTest - no matching phrase
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