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https://issues.apache.org/jira/browse/SOLR-16589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17648287#comment-17648287
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ASF subversion and git services commented on SOLR-16589:
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Commit d558cec6582a6084d0bb163d55b960e00d340a44 in solr's branch
refs/heads/branch_9_1 from Kevin Risden
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=d558cec6582 ]
SOLR-16589: Large fields with large=true can be truncated when using unicode
values (#1241)
> Large fields with large="true" can be truncated when using unicode values
> -------------------------------------------------------------------------
>
> Key: SOLR-16589
> URL: https://issues.apache.org/jira/browse/SOLR-16589
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: search
> Affects Versions: 9.0, 9.1
> Reporter: Nikolas Osvalds
> Assignee: Kevin Risden
> Priority: Major
> Fix For: main (10.0), 9.2
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> h3. Summary
> For fields using large="true", large fields (which is what they are intended
> for) can be truncated in v9+ of Solr.
> Example fieldtype definition:
> {code:java}
> <fieldtype name="string_large" class="solr.TextField" multiValued="false"
> indexed="false" stored="true" omitNorms="true" large="true" />{code}
> h3. Cause
> Looks like this is a bug introduced along with
> https://issues.apache.org/jira/browse/LUCENE-8805 /
> https://github.com/apache/lucene/issues/9849
> The current code is here:
> https://github.com/apache/solr/blob/main/solr/core/src/java/org/apache/solr/search/SolrDocumentFetcher.java#L511
>
> {code:java}
> public void stringField(FieldInfo fieldInfo, String value) throws IOException
> {
> Objects.requireNonNull(value, "String value should not be null");
> bytesRef.bytes = value.getBytes(StandardCharsets.UTF_8);
> bytesRef.length = value.length();
> {code}
>
> Specifically with respect to "large" fields handling.
> The length in utf8 bytes will often be longer than the string length
> `value.length()`, hence the truncation.
> h3. Fix
> {code:java}
> bytesRef.length = bytesRef.bytes.length {code}
>
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