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https://issues.apache.org/jira/browse/LUCENE-10600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17554004#comment-17554004
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Adrien Grand commented on LUCENE-10600:
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bq. should we also make SortedSetDocValues#nextOrd() returns int
No, SORTED_SET doc values could have more than Integer.MAX_VALUE unique values
overall. SortedSetDocValuesWriter does indeed use ints to represent term IDs,
but this class is only used for flushes and flushes have a hard bound of ~2GB
per thread so you can't have more than Integer.MAX_VALUE unique terms in a
flush. However, the unique count of terms can grow through merges beyond
Integer.MAX_VALUE.
> SortedSetDocValues#docValueCount should be an int, not long
> -----------------------------------------------------------
>
> Key: LUCENE-10600
> URL: https://issues.apache.org/jira/browse/LUCENE-10600
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Adrien Grand
> Assignee: Lu Xugang
> Priority: Minor
>
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