hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

[CP] use optimizer_features_enable system variable and optimizer_features_enable hint to control optimizer behaviors

Browse Source
This commit is contained in:
chimyue
2024-01-17 11:12:35 +00:00
committed by ob-robot
parent 5fccff6b0e
commit fd6b7ed1c5
17 changed files with 153 additions and 108 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/sql/monitor/ob_sql_plan.cpp
View File

@ -278,15 +278,17 @@ int ObSqlPlan::construct_outline_global_hint(ObLogPlan &plan, ObGlobalHint &outl
{
int ret = OB_SUCCESS;
ObDelUpdLogPlan *del_upd_plan = NULL;
outline_global_hint.opt_features_version_ = ObGlobalHint::CURRENT_OUTLINE_ENABLE_VERSION;
outline_global_hint.pdml_option_ = ObPDMLOption::NOT_SPECIFIED;
if (OB_SUCC(ret) && NULL != (del_upd_plan = dynamic_cast<ObDelUpdLogPlan*>(&plan))
&& del_upd_plan->use_pdml()) {
outline_global_hint.pdml_option_ = ObPDMLOption::ENABLE;
}
if (OB_SUCC(ret)) {
outline_global_hint.parallel_ = ObGlobalHint::UNSET_PARALLEL;
outline_global_hint.parallel_ = ObGlobalHint::UNSET_PARALLEL;
const ObQueryCtx *query_ctx = NULL;
if (OB_ISNULL(query_ctx = plan.get_optimizer_context().get_query_ctx())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected NULL", K(ret), K(query_ctx));
} else {
outline_global_hint.opt_features_version_ = query_ctx->optimizer_features_enable_version_;
if (NULL != (del_upd_plan = dynamic_cast<ObDelUpdLogPlan*>(&plan)) && del_upd_plan->use_pdml()) {
outline_global_hint.pdml_option_ = ObPDMLOption::ENABLE;
}
if (plan.get_optimizer_context().is_use_auto_dop()) {
outline_global_hint.merge_parallel_hint(ObGlobalHint::SET_ENABLE_AUTO_DOP);
} else if (plan.get_optimizer_context().get_max_parallel() > ObGlobalHint::DEFAULT_PARALLEL) {