Zhu JiaJun created SOLR-13381:
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Summary: 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
Security Level: Public (Default Security Level. Issues are Public)
Components: faceting
Affects Versions: 7.7.1, 7.7, 7.6, 7.0
Environment: solr, solrcloud
Reporter: Zhu JiaJun
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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