diff options
Diffstat (limited to 'src/backend/optimizer')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 9 | ||||
| -rw-r--r-- | src/backend/optimizer/path/indxpath.c | 14 | ||||
| -rw-r--r-- | src/backend/optimizer/path/pathkeys.c | 2 | ||||
| -rw-r--r-- | src/backend/optimizer/plan/createplan.c | 5 |
4 files changed, 13 insertions, 17 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index e9342097e52..358bb2aed6f 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -2053,9 +2053,8 @@ accumulate_append_subpath(Path *path, List **subpaths, List **special_subpaths) *subpaths = list_concat(*subpaths, list_copy_tail(apath->subpaths, apath->first_partial_path)); - new_special_subpaths = - list_truncate(list_copy(apath->subpaths), - apath->first_partial_path); + new_special_subpaths = list_copy_head(apath->subpaths, + apath->first_partial_path); *special_subpaths = list_concat(*special_subpaths, new_special_subpaths); return; @@ -3086,8 +3085,8 @@ get_useful_pathkeys_for_relation(PlannerInfo *root, RelOptInfo *rel, root->query_pathkeys); else if (npathkeys > 0) useful_pathkeys_list = lappend(useful_pathkeys_list, - list_truncate(list_copy(root->query_pathkeys), - npathkeys)); + list_copy_head(root->query_pathkeys, + npathkeys)); } return useful_pathkeys_list; diff --git a/src/backend/optimizer/path/indxpath.c b/src/backend/optimizer/path/indxpath.c index 0ef70ad7f11..7d176e7b00a 100644 --- a/src/backend/optimizer/path/indxpath.c +++ b/src/backend/optimizer/path/indxpath.c @@ -3026,14 +3026,12 @@ expand_indexqual_rowcompare(PlannerInfo *root, rc->rctype = (RowCompareType) op_strategy; rc->opnos = new_ops; - rc->opfamilies = list_truncate(list_copy(clause->opfamilies), - matching_cols); - rc->inputcollids = list_truncate(list_copy(clause->inputcollids), - matching_cols); - rc->largs = list_truncate(copyObject(var_args), - matching_cols); - rc->rargs = list_truncate(copyObject(non_var_args), - matching_cols); + rc->opfamilies = list_copy_head(clause->opfamilies, + matching_cols); + rc->inputcollids = list_copy_head(clause->inputcollids, + matching_cols); + rc->largs = list_copy_head(var_args, matching_cols); + rc->rargs = list_copy_head(non_var_args, matching_cols); iclause->indexquals = list_make1(make_simple_restrictinfo(root, (Expr *) rc)); } diff --git a/src/backend/optimizer/path/pathkeys.c b/src/backend/optimizer/path/pathkeys.c index 985b5d8de9b..b5d6c977eef 100644 --- a/src/backend/optimizer/path/pathkeys.c +++ b/src/backend/optimizer/path/pathkeys.c @@ -2464,7 +2464,7 @@ truncate_useless_pathkeys(PlannerInfo *root, else if (nuseful == list_length(pathkeys)) return pathkeys; else - return list_truncate(list_copy(pathkeys), nuseful); + return list_copy_head(pathkeys, nuseful); } /* diff --git a/src/backend/optimizer/plan/createplan.c b/src/backend/optimizer/plan/createplan.c index 76606faa3e4..e37f2933eb8 100644 --- a/src/backend/optimizer/plan/createplan.c +++ b/src/backend/optimizer/plan/createplan.c @@ -1397,8 +1397,7 @@ create_append_plan(PlannerInfo *root, AppendPath *best_path, int flags) */ if (tlist_was_changed && (flags & (CP_EXACT_TLIST | CP_SMALL_TLIST))) { - tlist = list_truncate(list_copy(plan->plan.targetlist), - orig_tlist_length); + tlist = list_copy_head(plan->plan.targetlist, orig_tlist_length); return inject_projection_plan((Plan *) plan, tlist, plan->plan.parallel_safe); } @@ -1557,7 +1556,7 @@ create_merge_append_plan(PlannerInfo *root, MergeAppendPath *best_path, */ if (tlist_was_changed && (flags & (CP_EXACT_TLIST | CP_SMALL_TLIST))) { - tlist = list_truncate(list_copy(plan->targetlist), orig_tlist_length); + tlist = list_copy_head(plan->targetlist, orig_tlist_length); return inject_projection_plan(plan, tlist, plan->parallel_safe); } else |