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QUERY_E_INVALIDCATEGORIZE
The categorization plan is invalid
QUERY_E_INVALIDCATEGORIZE is HRESULT 0x80041604. Windows documents it as “An invalid categorization order was requested.”
Exact contract boundary
This result belongs to legacy Windows query execution and is returned while building grouped or categorized result sets rather than merely ordering individual rows. The exact condition is: a grouping-property, range, aggregate-placement or nesting failure.
Input or state defects
A failed command or empty rowset is only the visible symptom; it does not identify which restriction, projection, sort, scope, timeout or catalog state violated the query contract.
Incident record
- Record grouped property type before releasing the relevant objects.
- Associate range boundaries with the exact UTC timestamp and correlation identifier.
- Compare failing and known-good values for aggregate placement under the same provider or handler version.
- Record the source and normalization path of nesting depth, not only its display form.
Redact private literals if necessary, but keep clause boundaries, canonical properties, parameter types, dialect and parser or provider offsets.
How to isolate the cause
- Capture grouping mode and grouped property type at the call boundary that returns this result.
- Confirm the operation reached building grouped or categorized result sets rather than merely ordering individual rows with the intended range boundaries.
- test the base query without categorization, then add one supported group level and range set at a time.
Begin with a known-good minimal command against the same catalog and restore projection, restriction, sorting, grouping and scope one component at a time.
Restoration strategy
Reduce the request to a supported grouping contract or move bounded presentation grouping to the client. Backoff helps only with measured transient load or timeout; it cannot repair invalid clauses, projection metadata, scopes or command state.
Scope of the result
It does not by itself prove catalog corruption, service outage, access denial or absence of matches; the query stage and provider records must identify the failing clause or state.
Comparison with adjacent codes
QUERY_E_INVALIDSORT concerns row order; QPARSE_E_INVALID_GROUPING identifies parser-level grouping type failure.
Developer and administrator guidance
Retain final command text, dialect, catalog generation, parameter values, timeout, cancellation state and chained OLE DB error records. Before rebuilding the catalog or restarting the provider, reproduce the minimal command and preserve its chained errors.
Example from a search pipeline
A report places category ordering in the wrong part of a GROUP ON expression. Reconstructing the documented group structure fixes the query.
Official Microsoft references
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