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Portal SPI_cursor_open_with_args(const char *name,
const char *command,
int nargs, Oid *argtypes,
Datum *values, const char *nulls,
bool read_only, int cursorOptions)
SPI_cursor_open_with_args sets up a cursor
(internally, a portal) that will execute the specified query.
Most of the parameters have the same meanings as the corresponding
parameters to SPI_prepare_cursor
and SPI_cursor_open.
For one-time query execution, this function should be preferred
over SPI_prepare_cursor followed by
SPI_cursor_open.
If the same command is to be executed with many different parameters,
either method might be faster, depending on the cost of re-planning
versus the benefit of custom plans.
The passed-in parameter data will be copied into the cursor's portal, so it can be freed while the cursor still exists.
name for portal, or NULL to let the system select a name
command string
number of input parameters ($1, $2, etc.)
an array containing the OIDs of the data types of the parameters
an array of actual parameter values
an array describing which parameters are null
If nulls is NULL then
SPI_cursor_open_with_args assumes that no
parameters are null.
true for read-only execution
integer bit mask of cursor options; zero produces default behavior
Pointer to portal containing the cursor. Note there is no error
return convention; any error will be reported via elog.