[
https://issues.apache.org/jira/browse/LUCENE-3191?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Muir reopened LUCENE-3191:
---------------------------------
Reopening: this code in SlowCollatedStringComparator is totally broken:
{noformat}
@Override
public int compareValues(BytesRef first, BytesRef second) {
if (first == null) {
if (second == null) {
return 0;
}
return -1;
} else if (second == null) {
return 1;
} else {
return collator.compare(first, second);
}
}
{noformat}
I haven't tracked this issue to understand whats going on here, but you cannot
pass BytesRefs to collator.compare. If this code is ever reached (and looking
at the test i wrote for this damn thing, its unclear if this code is even
necessary?!), it *will* throw ClassCastException:
http://download.oracle.com/javase/1,5.0/docs/api/java/text/Collator.html#compare(java.lang.Object,
java.lang.Object)
> Add TopDocs.merge to merge multiple TopDocs
> -------------------------------------------
>
> Key: LUCENE-3191
> URL: https://issues.apache.org/jira/browse/LUCENE-3191
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 3.3, 4.0
>
> Attachments: LUCENE-3191-3x.patch, LUCENE-3191.patch,
> LUCENE-3191.patch, LUCENE-3191.patch, LUCENE-3191.patch, LUCENE-3191.patch
>
>
> It's not easy today to merge TopDocs, eg produced by multiple shards,
> supporting arbitrary Sort.
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