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[FEAT MERGE] support auto dop

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This commit is contained in:
obdev
2023-04-28 15:11:52 +00:00
committed by ob-robot
parent 642f1c7d84
commit b41dc0ebdd
106 changed files with 3815 additions and 2844 deletions
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38
src/sql/optimizer/ob_insert_log_plan.cpp
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@ -70,7 +70,11 @@ int ObInsertLogPlan::generate_normal_raw_plan()
bool need_osg = false;
OSGShareInfo osg_info;
if (OB_SUCC(ret)) {
if (OB_FAIL(check_need_online_stats_gather(need_osg))) {
if (OB_FAIL(compute_dml_parallel())) { // compute parallel before check allocate stats gather
LOG_WARN("failed to compute dml parallel", K(ret));
} else if (use_pdml() && OB_FAIL(set_is_direct_insert())) {
LOG_WARN("failed to set is direct insert", K(ret));
} else if (OB_FAIL(check_need_online_stats_gather(need_osg))) { // allocal optimizer stat gather operator.
LOG_WARN("fail to check wether we need optimizer stats gathering operator", K(ret));
} else if (need_osg) {
if (OB_FAIL(generate_osg_share_info(osg_info))) {
@ -95,7 +99,7 @@ int ObInsertLogPlan::generate_normal_raw_plan()
if (OB_SUCC(ret)) {
if (OB_FAIL(prepare_dml_infos())) {
LOG_WARN("failed to prepare dml infos", K(ret));
} else if (get_optimizer_context().use_pdml() && insert_stmt->value_from_select()) {
} else if (use_pdml()) {
if (OB_FAIL(candi_allocate_pdml_insert())) {
LOG_WARN("failed to allocate pdml insert", K(ret));
} else {
@ -149,6 +153,34 @@ int ObInsertLogPlan::generate_normal_raw_plan()
return ret;
}
// Direct-insert is enabled only:
// 1. pdml insert
// 2. _ob_enable_direct_load
// 3. insert into select clause
// 4. append hint
// 5. auto_commit, not in a transaction
int ObInsertLogPlan::set_is_direct_insert() {
int ret = OB_SUCCESS;
is_direct_insert_ = false;
bool auto_commit = false;
const ObSQLSessionInfo* session_info = get_optimizer_context().get_session_info();
if (OB_ISNULL(get_stmt()) || OB_ISNULL(session_info)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret), K(get_stmt()), K(session_info));
} else if (!get_stmt()->value_from_select()
|| !get_optimizer_context().get_global_hint().has_append()
|| !GCONF._ob_enable_direct_load
|| session_info->is_in_transaction()) {
/* is not direct insert */
} else if (OB_FAIL(session_info->get_autocommit(auto_commit))) {
LOG_WARN("failed to get auto commit", KR(ret));
} else {
is_direct_insert_ = auto_commit;
}
return ret;
}
int ObInsertLogPlan::check_need_online_stats_gather(bool &need_osg)
{
int ret = OB_SUCCESS;
@ -182,7 +214,7 @@ int ObInsertLogPlan::check_need_online_stats_gather(bool &need_osg)
&& !get_optimizer_context().get_query_ctx()->get_global_hint().has_no_gather_opt_stat_hint()
&& online_sys_var
&& ((get_optimizer_context().get_query_ctx()->get_global_hint().should_generate_osg_operator())
|| (get_optimizer_context().use_pdml()));
|| use_pdml());
LOG_TRACE("online insert stat", K(online_sys_var), K(need_osg), K(need_gathering));
}
return ret;