Remove comment obsoleted by 11c2d6fd.

Reported-by: Tom Lane <[email protected]>
Discussion: https://postgr.es/m/1604497.1680637072%40sss.pgh.pa.us

diff --git a/src/backend/optimizer/path/joinpath.c b/src/backend/optimizer/path/joinpath.c
index bd51e4f97243b41cc21a9dcca4ab11b980242626..fbeb338c98d936a1a6a8ca3430199cb758d67715 100644 (file)
--- a/src/backend/optimizer/path/joinpath.c
+++ b/src/backend/optimizer/path/joinpath.c
@@ -2190,9 +2190,8 @@ hash_inner_and_outer(PlannerInfo *root,
                 * If the joinrel is parallel-safe, we may be able to consider a
                 * partial hash join.  However, we can't handle JOIN_UNIQUE_OUTER,
                 * because the outer path will be partial, and therefore we won't be
-                * able to properly guarantee uniqueness.  Similarly, we can't handle
-                * JOIN_FULL and JOIN_RIGHT, because they can produce false null
-                * extended rows.  Also, the resulting path must not be parameterized.
+                * able to properly guarantee uniqueness.  Also, the resulting path
+                * must not be parameterized.
                 */
                if (joinrel->consider_parallel &&
                        save_jointype != JOIN_UNIQUE_OUTER &&