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Fix analyzed prefix query in query_string (#35756) 

This change fixes analyzed prefix queries in `query_string` to be ignored
if all terms are removed during the analysis.

Closes #31702
This commit is contained in:
Jim Ferenczi 2018-11-23 09:42:23 +01:00 committed by GitHub
parent 2e37f17a7d
commit be69a774df
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 17 additions and 4 deletions
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11
server/src/main/java/org/elasticsearch/index/search/QueryStringQueryParser.java
View File

@ -484,10 +484,13 @@ public class QueryStringQueryParser extends XQueryParser {
List<Query> queries = new ArrayList<>();
for (Map.Entry<String, Float> entry : fields.entrySet()) {
Query q = getPrefixQuerySingle(entry.getKey(), termStr);
assert q != null;
queries.add(applyBoost(q, entry.getValue()));
if (q != null) {
queries.add(applyBoost(q, entry.getValue()));
}
}
if (queries.size() == 1) {
if (queries.isEmpty()) {
return null;
} else if (queries.size() == 1) {
return queries.get(0);
} else {
float tiebreaker = groupTieBreaker == null ? type.tieBreaker() : groupTieBreaker;
@ -561,7 +564,7 @@ public class QueryStringQueryParser extends XQueryParser {
}
if (tlist.size() == 0) {
return super.getPrefixQuery(field, termStr);
return null;
}
if (tlist.size() == 1 && tlist.get(0).size() == 1) {

10
server/src/test/java/org/elasticsearch/index/query/QueryStringQueryBuilderTests.java
View File

@ -1422,6 +1422,16 @@ public class QueryStringQueryBuilderTests extends AbstractQueryTestCase<QueryStr
assertEquals(expected, query);
}
public void testAnalyzedPrefix() throws Exception {
Query query = new QueryStringQueryBuilder("quick* @&*")
.field(STRING_FIELD_NAME)
.analyzer("standard")
.analyzeWildcard(true)
.toQuery(createShardContext());
Query expected = new PrefixQuery(new Term(STRING_FIELD_NAME, "quick"));
assertEquals(expected, query);
}
private static IndexMetaData newIndexMeta(String name, Settings oldIndexSettings, Settings indexSettings) {
Settings build = Settings.builder().put(oldIndexSettings)
.put(indexSettings)