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Commite1623b7

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Fix obsolete comments referencing JoinPathExtraData.extra_lateral_rels.
That field went away in commitedca44b, but it seems thatcommit45be99f re-introduced some comments mentioning it.Noted by James Coleman, though this isn't exactly hisproposed new wording. Also thanks to Justin Pryzby forsoftware archaeology.Discussion:https://postgr.es/m/CAAaqYe8fxZjq3na+XkNx4C78gDqykH-7dbnzygm9Qa9nuDTePg@mail.gmail.com
1 parent9acaf1a commite1623b7

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‎src/backend/optimizer/path/joinpath.c‎

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -670,8 +670,8 @@ try_partial_nestloop_path(PlannerInfo *root,
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/*
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* If the inner path is parameterized, the parameterization must be fully
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* satisfied by the proposed outer path. Parameterized partial paths are
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* not supported. The caller should already have verified that no
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*extra_lateral_rels are required here.
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* not supported. The caller should already have verified that no lateral
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*rels are required here.
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*/
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Assert(bms_is_empty(joinrel->lateral_relids));
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if (inner_path->param_info!=NULL)
@@ -984,8 +984,8 @@ try_partial_hashjoin_path(PlannerInfo *root,
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/*
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* If the inner path is parameterized, the parameterization must be fully
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* satisfied by the proposed outer path. Parameterized partial paths are
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* not supported. The caller should already have verified that no
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*extra_lateral_rels are required here.
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* not supported. The caller should already have verified that no lateral
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*rels are required here.
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*/
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Assert(bms_is_empty(joinrel->lateral_relids));
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if (inner_path->param_info!=NULL)
@@ -1714,7 +1714,7 @@ match_unsorted_outer(PlannerInfo *root,
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* partial path and the joinrel is parallel-safe. However, we can't
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* handle JOIN_UNIQUE_OUTER, because the outer path will be partial, and
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* therefore we won't be able to properly guarantee uniqueness. Nor can
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* we handleextra_lateral_rels, since partial paths must not be
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* we handlejoins needing lateral rels, since partial paths must not be
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* parameterized. Similarly, we can't handle JOIN_FULL and JOIN_RIGHT,
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* because they can produce false null extended rows.
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*/

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