HRESULT 0x0004093B (IDS_MON_CANNOT_CONVERT): meaning and diagnosis

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Description:

the catalog query requires a data-type conversion that the search property types cannot perform.

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IDS_MON_OR_NOT	IDS_MON_OUT_OF_RANGE

IDS_MON_CANNOT_CONVERT

IDS_MON_CANNOT_CONVERT is a type-conversion failure in the query layer. Windows Search properties map from property-system variant types to OLE DB types, and casts use a documented set of target data types. Quoting a numeric or Boolean value as a string can also change the comparison type before conversion is attempted.

Log the source property type and target type

Identify the canonical property being compared or projected and its registered type.
Check whether the query explicitly uses CAST or relies on an implicit conversion caused by the literal syntax.
Use numeric, Boolean, hexadecimal, string, and date literal forms exactly as documented instead of coercing every value through text.

The Windows Search casting syntax applies to a property column and supports specific data types. Its literal rules also state that quoted numeric and Boolean values are interpreted as strings. When this code appears, compare the property-system type, the cast target, and the literal form as a three-part contract. Reindexing does not change the SQL type requested by the command.

Casting columns · Data type mappings · Literal syntax

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