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https://issues.apache.org/jira/browse/SOLR-13381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17173003#comment-17173003
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Tobias Ibounig commented on SOLR-13381:
---------------------------------------
This happened to us
Solr upgrade form 7.7.2 to Solr 8.4.1.
Changed all types from trie to point fields.
A facet of type IntPointField with grouping then threw an exception, that it
expected SORTED_SET and not NUMERIC or NUMERIC_SET (tried with single values
and multivalued)
{noformat}
Caused by: java.lang.IllegalStateException: unexpected docvalues type
SORTED_NUMERIC for field 'xxx' (expected one of [SORTED, SORTED_SET]). Re-index
with correct docvalues type.{noformat}
Switching back to a TrieField fix the issue.
It feels like an overlooked edgecase, that should be fixed before removal of
TrieFields (in 9.0?), otherwise there will be no workaround.
> Unexpected docvalues type SORTED_NUMERIC Exception when grouping by a
> PointField facet
> --------------------------------------------------------------------------------------
>
> Key: SOLR-13381
> URL: https://issues.apache.org/jira/browse/SOLR-13381
> Project: Solr
> Issue Type: Bug
> Components: faceting
> Affects Versions: 7.0, 7.6, 7.7, 7.7.1
> Environment: solr, solrcloud
> Reporter: Zhu JiaJun
> Priority: Major
> Attachments: SOLR-13381.patch
>
>
> Hey,
> I got an "Unexpected docvalues type SORTED_NUMERIC" exception when I perform
> group facet on an IntPointField. Debugging into the source code, the cause is
> that internally the docvalue type for PointField is "NUMERIC" (single value)
> or "SORTED_NUMERIC" (multi value), while the TermGroupFacetCollector class
> requires the facet field must have a "SORTED" or "SOTRTED_SET" docvalue type:
> [https://github.com/apache/lucene-solr/blob/2480b74887eff01f729d62a57b415d772f947c91/lucene/grouping/src/java/org/apache/lucene/search/grouping/TermGroupFacetCollector.java#L313]
>
> When I change schema for all int field to TrieIntField, the group facet then
> work. Since internally the docvalue type for TrieField is SORTED (single
> value) or SORTED_SET (multi value).
> Regarding that the "TrieField" is depreciated in Solr7, please help on this
> grouping facet issue for PointField. I also commented this issue in SOLR-7495.
>
> In addtional, all place of "${solr.tests.IntegerFieldType}" in the unit test
> files seems to be using the "TrieintField", if change to "IntPointField",
> some unit tests will fail, for example:
> [https://github.com/apache/lucene-solr/blob/3de0b3671998cc9bc723d10f1b31ce48cbd4fa64/solr/core/src/test/org/apache/solr/request/SimpleFacetsTest.java#L417]
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