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QUERY_E_NO_RELPROP
QUERY_E_NO_RELPROP is about relevant-property data, not document existence. The relevance documents can be known to the catalog, yet the query engine cannot find usable information in the properties selected for relevance processing.
Verify property identity, indexing, and per-item presence
- Log canonical property names or identifiers supplied to the relevance query.
- Query those properties directly for each relevant document and distinguish NULL/missing values from unknown property names.
- Check whether the property is full-text searchable or only a value property when the relevance operation expects textual information.
Windows Search catalogs store property columns per document, and items do not necessarily have values for every property. A property that is valid in the schema can still be absent on the selected documents. The correct diagnostic is to inspect the actual rows used as relevance examples. This differs from QUERY_E_NO_RELDOC, where the documents themselves cannot be resolved.
Legacy query errors · Windows Search catalog model · WHERE predicate types
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