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Remove comment obsoleted by 11c2d6fd.

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Reported-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/1604497.1680637072%40sss.pgh.pa.us
This commit is contained in:
Thomas Munro 2023-04-05 09:40:34 +12:00
parent ea1db8ae70
commit f303ec6210
1 changed files with 2 additions and 3 deletions
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5
src/backend/optimizer/path/joinpath.c
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@ -2190,9 +2190,8 @@ hash_inner_and_outer(PlannerInfo *root,
* If the joinrel is parallel-safe, we may be able to consider a * If the joinrel is parallel-safe, we may be able to consider a
* partial hash join. However, we can't handle JOIN_UNIQUE_OUTER, * partial hash join. However, we can't handle JOIN_UNIQUE_OUTER,
* because the outer path will be partial, and therefore we won't be * because the outer path will be partial, and therefore we won't be
* able to properly guarantee uniqueness. Similarly, we can't handle * able to properly guarantee uniqueness. Also, the resulting path
* JOIN_FULL and JOIN_RIGHT, because they can produce false null * must not be parameterized.
* extended rows. Also, the resulting path must not be parameterized.
*/ */
if (joinrel->consider_parallel && if (joinrel->consider_parallel &&
save_jointype != JOIN_UNIQUE_OUTER && save_jointype != JOIN_UNIQUE_OUTER &&