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!2473 修复smp下选择agg策略时sorted路径估算代价的问题

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Merge pull request !2473 from 胡正超/tpchsmp
This commit is contained in:
opengauss-bot
2022-11-30 11:08:19 +00:00
committed by Gitee
parent 3b75ff84b5 1c36af4ba1
commit 41884afbf1
1 changed files with 8 additions and 1 deletions
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9
src/gausskernel/optimizer/plan/planner.cpp
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@ -6195,7 +6195,6 @@ static void compute_sorted_path_cost(PlannerInfo* root, double limit_tuples, int
bool needs_stream = false;
bool need_sort_for_grouping = false;
errno_t rc = EOK;
bool is_replicate = (!IS_STREAM_PLAN || cheapest_path->locator_type == LOCATOR_TYPE_REPLICATED);
rc = memset_s(&stream_p, sizeof(stream_p), 0, sizeof(stream_p));
securec_check(rc, "\0", "\0");
@ -6207,12 +6206,16 @@ static void compute_sorted_path_cost(PlannerInfo* root, double limit_tuples, int
current_pathkeys = sorted_path->pathkeys;
Distribution* distribution = ng_get_dest_distribution(sorted_path);
ng_copy_distribution(&sorted_p->distribution, distribution);
sorted_p->dop = sorted_path->dop;
sorted_p->locator_type = sorted_path->locator_type;
} else {
copy_path_costsize(sorted_p, cheapest_path);
sorted_p->distribute_keys = cheapest_path->distribute_keys;
current_pathkeys = cheapest_path->pathkeys;
Distribution* distribution = ng_get_dest_distribution(cheapest_path);
ng_copy_distribution(&sorted_p->distribution, distribution);
sorted_p->dop = cheapest_path->dop;
sorted_p->locator_type = cheapest_path->locator_type;
}
if (!pathkeys_contained_in(root->group_pathkeys, current_pathkeys)) {
@ -6220,6 +6223,10 @@ static void compute_sorted_path_cost(PlannerInfo* root, double limit_tuples, int
need_sort_for_grouping = true;
}
bool is_replicate = (!IS_STREAM_PLAN ||
sorted_p->dop <= 1 ||
sorted_p->locator_type == LOCATOR_TYPE_REPLICATED);
if (is_replicate || !parse->hasAggs) {
if (need_sort_for_grouping) {
cost_sort(sorted_p,