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set the initial value of wrs to scn min

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This commit is contained in:
obdev
2022-11-28 02:55:06 +00:00
committed by ob-robot
parent 99d4f56fec
commit 87a9357186
406 changed files with 6473 additions and 50308 deletions
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66
src/sql/optimizer/ob_log_plan.cpp
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@ -1515,6 +1515,9 @@ int ObLogPlan::generate_inner_join_detectors(const ObIArray<TableItem*> &table_i
LOG_WARN("failed to push back qual", K(ret));
} else if (OB_FAIL(detector->join_info_.table_set_.add_members(expr->get_relation_ids()))) {
LOG_WARN("failed to add members", K(ret));
} else if (expr->has_flag(CNT_SUB_QUERY) &&
OB_FAIL(detector->join_info_.table_set_.add_members(all_table_ids))) {
LOG_WARN("failed to add members", K(ret));
} else if (OB_FAIL(inner_join_detectors.push_back(detector))) {
LOG_WARN("failed to push back detector", K(ret));
} else {
@ -1537,6 +1540,9 @@ int ObLogPlan::generate_inner_join_detectors(const ObIArray<TableItem*> &table_i
} else if (expr->has_flag(IS_JOIN_COND) &&
OB_FAIL(detector->join_info_.equal_join_conditions_.push_back(expr))) {
LOG_WARN("failed to push back qual", K(ret));
} else if (expr->has_flag(CNT_SUB_QUERY) &&
OB_FAIL(detector->join_info_.table_set_.add_members(all_table_ids))) {
LOG_WARN("failed to add members", K(ret));
}
}
//3. 生成inner join的冲突规则
@ -8140,7 +8146,6 @@ int ObLogPlan::try_push_limit_into_table_scan(ObLogicalOperator *top,
!is_virtual_table(table_scan->get_ref_table_id()) &&
!(0 != table_scan->get_dblink_id() && NULL != offset_expr) &&
!get_stmt()->is_calc_found_rows() && !table_scan->is_sample_scan() &&
!get_log_plan_hint().use_late_material() &&
(NULL == table_scan->get_limit_expr() ||
ObOptimizerUtil::is_point_based_sub_expr(limit_expr, table_scan->get_limit_expr()))) {
if (!top->is_distributed()) {
@ -9889,6 +9894,20 @@ int ObLogPlan::add_candidate_plan(ObIArray<CandidatePlan> &current_plans,
int ret = OB_SUCCESS;
bool should_add = true;
DominateRelation plan_rel = DominateRelation::OBJ_UNCOMPARABLE;
if (OB_ISNULL(new_plan.plan_tree_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (new_plan.plan_tree_->get_type() == LOG_SET &&
static_cast<ObLogSet*>(new_plan.plan_tree_)->is_recursive_union()) {
ObLogicalOperator* right_child = new_plan.plan_tree_->get_child(ObLogicalOperator::second_child);
if (OB_ISNULL(right_child)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (right_child->get_contains_match_all_fake_cte() &&
!new_plan.plan_tree_->is_remote()) {
should_add = false;
}
}
for (int64_t i = current_plans.count() - 1;
OB_SUCC(ret) && should_add && i >= 0; --i) {
if (OB_FAIL(compute_plan_relationship(current_plans.at(i),
@ -10848,6 +10867,18 @@ int ObLogPlan::adjust_final_plan_info(ObLogicalOperator *&op)
}
}
if (OB_SUCC(ret) && op->get_type() == LOG_SET &&
static_cast<ObLogSet*>(op)->is_recursive_union()) {
ObLogicalOperator* right_child = NULL;
if (OB_UNLIKELY(2 != op->get_num_of_child()) ||
OB_ISNULL(right_child = op->get_child(ObLogicalOperator::second_child))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(op->get_name()));
} else if (OB_FAIL(allocate_material_for_recursive_cte_plan(right_child->get_child_list()))) {
LOG_WARN("faile to allocate material for recursive cte plan", K(ret));
}
}
if (OB_SUCC(ret)) {
if (op->is_plan_root() && OB_FAIL(op->set_plan_root_output_exprs())) {
LOG_WARN("failed to add plan root exprs", K(ret));
@ -12438,3 +12469,36 @@ int ObLogPlan::compute_subplan_filter_repartition_distribution_info(ObLogicalOpe
}
return ret;
}
int ObLogPlan::allocate_material_for_recursive_cte_plan(ObIArray<ObLogicalOperator*> &child_ops)
{
int ret = OB_SUCCESS;
ObLogPlan *log_plan = NULL;
int64_t fake_cte_pos = -1;
for (int64_t i = 0; OB_SUCC(ret) && fake_cte_pos == -1 && i < child_ops.count(); i++) {
if (OB_ISNULL(child_ops.at(i))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (child_ops.at(i)->get_contains_fake_cte()) {
fake_cte_pos = i;
} else { /*do nothing*/ }
}
if (OB_SUCC(ret) && fake_cte_pos != -1) {
for (int64_t i = 0; OB_SUCC(ret) && i < child_ops.count(); i++) {
if (OB_ISNULL(child_ops.at(i)) || OB_ISNULL(log_plan = child_ops.at(i)->get_plan())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (i == fake_cte_pos) {
if (OB_FAIL(SMART_CALL(allocate_material_for_recursive_cte_plan(child_ops.at(i)->get_child_list())))) {
LOG_WARN("failed to adjust recursive cte plan", K(ret));
} else { /*do nothing*/ }
} else if (log_op_def::LOG_MATERIAL != child_ops.at(i)->get_type() &&
log_op_def::LOG_TABLE_SCAN != child_ops.at(i)->get_type() &&
log_op_def::LOG_EXPR_VALUES != child_ops.at(i)->get_type() &&
OB_FAIL(log_plan->allocate_material_as_top(child_ops.at(i)))) {
LOG_WARN("failed to allocate materialize as top", K(ret));
} else { /*do nothing*/ }
}
}
return ret;
}