Function postquel_sub_params

src/backend/executor/functions.c:1072–1105

Build ParamListInfo array representing current arguments */

/* Build ParamListInfo array representing current arguments */
static void
postquel_sub_params(SQLFunctionCachePtr fcache,
					FunctionCallInfo fcinfo)
{
	int			nargs = fcinfo->nargs;

	if (nargs > 0)
	{
		ParamListInfo paramLI;

		if (fcache->paramLI == NULL)
		{
			paramLI = makeParamList(nargs);
			fcache->paramLI = paramLI;
		}
		else
		{
			paramLI = fcache->paramLI;
			Assert(paramLI->numParams == nargs);
		}

		for (int i = 0; i < nargs; i++)
		{
			ParamExternData *prm = &paramLI->params[i];

			prm->value = fcinfo->args[i].value;
			prm->isnull = fcinfo->args[i].isnull;
			prm->pflags = 0;
			prm->ptype = fcache->pinfo->argtypes[i];
		}
	}
	else
		fcache->paramLI = NULL;
}

/*
 * Extract the SQL function's value from a single result row.  This is used