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