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ドル, 2ドル, 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