E.g. projecting on "foo.bar" where "foo" is a flattened object field. This would require some extra work since we need to go through a tree when extracting the value from the hit (currently we naively assume the hit just contains a key -> value map of projections).
Note that nested fields are to be addressed as part of a different ticket: HSEARCH-3062
See also {{org.hibernate.search.v6poc.integrationtest.backend.tck.search.projection.SearchProjectionIT#field_inFlattenedObject}}, which should be re-enabled once we got this working. |
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