Function RestoreParamExecParams

src/backend/executor/execParallel.c:412–435

* Restore specified PARAM_EXEC parameters. */

 * Restore specified PARAM_EXEC parameters.
 */
static void
RestoreParamExecParams(char *start_address, EState *estate)
{
	int			nparams;
	int			i;
	int			paramid;

	memcpy(&nparams, start_address, sizeof(int));
	start_address += sizeof(int);

	for (i = 0; i < nparams; i++)
	{
		ParamExecData *prm;

		/* Read paramid */
		memcpy(&paramid, start_address, sizeof(int));
		start_address += sizeof(int);
		prm = &(estate->es_param_exec_vals[paramid]);

		/* Read datum/isnull. */
		prm->value = datumRestore(&start_address, &prm->isnull);
		prm->execPlan = NULL;
	}
}

/*
 * Initialize the dynamic shared memory segment that will be used to control