Function SPI_prepare_cursor

src/backend/executor/spi.c:893–927

}

SPIPlanPtr
SPI_prepare_cursor(const char *src, int nargs, Oid *argtypes,
				   int cursorOptions)
{
	_SPI_plan	plan;
	SPIPlanPtr	result;

	if (src == NULL || nargs < 0 || (nargs > 0 && argtypes == NULL))
	{
		SPI_result = SPI_ERROR_ARGUMENT;
		return NULL;
	}

	SPI_result = _SPI_begin_call(true);
	if (SPI_result < 0)
		return NULL;

	memset(&plan, 0, sizeof(_SPI_plan));
	plan.magic = _SPI_PLAN_MAGIC;
	plan.parse_mode = RAW_PARSE_DEFAULT;
	plan.cursor_options = cursorOptions;
	plan.nargs = nargs;
	plan.argtypes = argtypes;
	plan.parserSetup = NULL;
	plan.parserSetupArg = NULL;

	_SPI_prepare_plan(src, &plan);

	/* copy plan to procedure context */
	result = _SPI_make_plan_non_temp(&plan);

	_SPI_end_call(true);

	return result;
}

SPIPlanPtr
SPI_prepare_extended(const char *src,