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QPARSE_E_INVALID_QUERY
The parser rejects the overall expression
QPARSE_E_INVALID_QUERY is HRESULT 0x8004167A. Windows documents it as “Invalid query.”
Interpretation
This result belongs to legacy Windows query parsing and is returned while building the final query tree without a narrower token-specific diagnosis. The exact condition is: fragment composition, dialect mismatch, escaping or parser limitations produce a generic invalid query.
Concrete sources
Observability checklist
- Associate final parser input with the exact UTC timestamp and correlation identifier.
- Compare failing and known-good values for dialect under the same provider or handler version.
- Record the source and normalization path of last accepted token, not only its display form.
- Record smallest failing fragment before releasing the relevant objects.
- Associate final parser input bytes with the exact UTC timestamp and correlation identifier.
Investigation order
- Capture final parser input and dialect at the call boundary that returns this result.
- Confirm the operation reached building the final query tree without a narrower token-specific diagnosis with the intended last accepted token.
- capture exact final parser input, dialect, last accepted token and smallest failing fragment.
Corrective action
Change the expression or parser mode; preserve a minimal reproducer when documented syntax still fails. Retrying identical parser bytes cannot succeed; regenerate the specific token or schema pairing that failed.
What must not be inferred
Neighboring status codes
QUERY_E_INVALIDQUERY is higher-level call validation, while this value is parser-specific.
Developer and administrator guidance
Reproduction example
An escaping layer duplicates a quote after the AST is logged. Capturing final parser text identifies the real stage.
Official Microsoft references
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