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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2016/10/07 08:47:21 UTC
[jira] [Commented] (LUCENE-7481) SpanPayloadCheckQuery is missing
rewrite method
[ https://issues.apache.org/jira/browse/LUCENE-7481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15554557#comment-15554557 ]
Adrien Grand commented on LUCENE-7481:
--------------------------------------
You are right, it should rewrite the inner query. Would you like to work on a patch?
> SpanPayloadCheckQuery is missing rewrite method
> -----------------------------------------------
>
> Key: LUCENE-7481
> URL: https://issues.apache.org/jira/browse/LUCENE-7481
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 6.x
> Reporter: Roman Chyla
>
> If used with a wildcard query, the result is a failure saying: "Rewrite query first"
> The SpanNearQuery has the rewrite method; however the SpanPayloadCheckQuery just returns the query itself.
> this works:
> ```
> spanNear([vectrfield:ebyuugz, SpanMultiTermQueryWrapper(vectrfield:e*), SpanMultiTermQueryWrapper(vectrfield:m*), SpanMultiTermQueryWrapper(vectrfield:f*)], 0, true)
> ```
> code to generate the query:
> ```
> private Query getSpanQuery(String[] parts, int howMany, boolean truncate) throws UnsupportedEncodingException {
> SpanQuery[] clauses = new SpanQuery[howMany+1];
> clauses[0] = new SpanTermQuery(new Term("vectrfield", parts[0])); // surname
> for (int i = 0; i < howMany; i++) {
> if (truncate) {
> SpanMultiTermQueryWrapper<WildcardQuery> q = new SpanMultiTermQueryWrapper<WildcardQuery>(new WildcardQuery(new Term("vectrfield", parts[i+1].substring(0, 1) + "*")));
> clauses[i+1] = q;
> }
> else {
> clauses[i+1] = new SpanTermQuery(new Term("vectrfield", parts[i+1]));
> }
> }
> SpanNearQuery sq = new SpanNearQuery(clauses, 0, true); // match in order
> return sq;
> }
> ```
> and this fails:
> ```
> spanPayCheck(spanNear([vectrfield:ebyuugz, SpanMultiTermQueryWrapper(vectrfield:e*), SpanMultiTermQueryWrapper(vectrfield:m*), SpanMultiTermQueryWrapper(vectrfield:f*)], 1, true), payloadRef: 0;1;2;3;)
> ```
> each clause is made of:
> ```
> new SpanMultiTermQueryWrapper<WildcardQuery>(new WildcardQuery(new Term("vectrfield", parts[i+1].substring(0, 1) + "*")));
> ```
> It is a regression; the code was working well in SOLR4.x
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