Function add_paths_to_joinrel

src/backend/optimizer/path/joinpath.c:434–448

}

void
add_paths_to_joinrel(PlannerInfo *root,
					 RelOptInfo *joinrel,
					 RelOptInfo *outerrel,
					 RelOptInfo *innerrel,
					 JoinType jointype,
					 SpecialJoinInfo *sjinfo,
					 List *restrictlist)
{
	if(add_paths_to_joinrel_hook != NULL) {
		add_paths_to_joinrel_hook(root, joinrel, outerrel, innerrel, jointype, sjinfo, restrictlist);
	} else {
		add_paths_to_join_relation(root, joinrel, outerrel, innerrel, jointype, sjinfo, restrictlist);
	}
}

/*
 * We override the param_source_rels heuristic to accept nestloop paths in