diff options
Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index e9ee32b7f43..db3a68a51dd 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -1266,7 +1266,7 @@ set_append_rel_pathlist(PlannerInfo *root, RelOptInfo *rel, if (rel->part_scheme) rel->partitioned_child_rels = list_concat(rel->partitioned_child_rels, - list_copy(childrel->partitioned_child_rels)); + childrel->partitioned_child_rels); /* * Child is live, so add it to the live_childrels list for use below. @@ -1347,9 +1347,8 @@ add_paths_to_append_rel(PlannerInfo *root, RelOptInfo *rel, component = root->simple_rel_array[relid]; Assert(component->part_scheme != NULL); Assert(list_length(component->partitioned_child_rels) >= 1); - partrels = - list_concat(partrels, - list_copy(component->partitioned_child_rels)); + partrels = list_concat(partrels, + component->partitioned_child_rels); } partitioned_rels = list_make1(partrels); @@ -2048,8 +2047,7 @@ accumulate_append_subpath(Path *path, List **subpaths, List **special_subpaths) if (!apath->path.parallel_aware || apath->first_partial_path == 0) { - /* list_copy is important here to avoid sharing list substructure */ - *subpaths = list_concat(*subpaths, list_copy(apath->subpaths)); + *subpaths = list_concat(*subpaths, apath->subpaths); return; } else if (special_subpaths != NULL) @@ -2072,8 +2070,7 @@ accumulate_append_subpath(Path *path, List **subpaths, List **special_subpaths) { MergeAppendPath *mpath = (MergeAppendPath *) path; - /* list_copy is important here to avoid sharing list substructure */ - *subpaths = list_concat(*subpaths, list_copy(mpath->subpaths)); + *subpaths = list_concat(*subpaths, mpath->subpaths); return; } |