diff options
| -rw-r--r-- | src/backend/optimizer/path/joinpath.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/backend/optimizer/path/joinpath.c b/src/backend/optimizer/path/joinpath.c index 821d282497b..b2916ad6901 100644 --- a/src/backend/optimizer/path/joinpath.c +++ b/src/backend/optimizer/path/joinpath.c @@ -333,7 +333,10 @@ add_paths_to_joinrel(PlannerInfo *root, jointype, &extra); /* - * 6. Finally, give extensions a chance to manipulate the path list. + * 6. Finally, give extensions a chance to manipulate the path list. They + * could add new paths (such as CustomPaths) by calling add_path(), or + * add_partial_path() if parallel aware. They could also delete or modify + * paths added by the core code. */ if (set_join_pathlist_hook) set_join_pathlist_hook(root, joinrel, outerrel, innerrel, |