2.2.1.40 CRowsetProperties
The CRowsetProperties structure contains configuration information for a query.
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_uBooleanOptions |
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_ulMaxOpenRows |
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_ulMemoryUsage |
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_cMaxResults |
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_cCmdTimeout |
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_uBooleanOptions (4 bytes): The least significant 3 bits of this field MUST contain one of the following three values.
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Value
Meaning
eSequential
0x00000001
The cursor can only be moved forward.
eLocatable
0x00000003
The cursor can be moved to any position.
eScrollable
0x00000007
The cursor can be moved to any position and fetch in any direction.
The remaining bits can be clear or set to any combination of the following values logically ORed together.
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Value
Meaning
eAsynchronous
0x00000008
The client will not wait for execution completion.
eFirstRows
0x00000080
Return the first rows encountered, not the best matches.
eHoldRows
0x00000200
The server MUST NOT discard rows until the client is done with a query.
eChaptered
0x00000800
eUseCI
0x00001000
Use the inverted index to evaluate content restrictions even if it is out of date. If not set, the GSS can opt to execute the query by going directly against the file system.
eDeferTrimming
0x00002000
Non-indexed trimming operations like scoping or security checking can be expensive. This option gives the GSS the option of deferring these operations until rows are actually requested.
eEnableRowsetEvents
0x00800000
Enables storage of rowset events on the server side. (For information about how to retrieve stored events, see the CPMGetRowsetNotifyIn message.)
eDoNotComputeExpensiveProps
0x00400000
Prevents computation of expensive properties. Windows implementations treat cRowsTotal, _maxRank, and _cResultsFound (as specified in CPMGetQueryStatusExOut (section 2.2.3.9)) as expensive properties. Other implementations could choose different properties and mark them as expensive.
_ulMaxOpenRows (4 bytes): A 32-bit unsigned integer.
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Note This field MUST be set to 0x00000000. It is not used and MUST be ignored.
_ulMemoryUsage (4 bytes): A 32-bit unsigned integer.
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Note This field MUST be set to 0x00000000. It is not used and MUST be ignored.
_cMaxResults (4 bytes): A 32-bit unsigned integer specifying the maximum number of rows that are to be returned for the query.
_cCmdTimeout (4 bytes): A 32-bit unsigned integer, specifying the number of seconds at which a query is to time out and automatically terminate, counting from the time the query starts executing on the server.
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Note A value of 0x00000000 means that the query is not to time out.