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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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35
src/sql/optimizer/ob_log_join.cpp
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@ -282,7 +282,7 @@ int ObLogJoin::inner_replace_op_exprs(
return ret;
}
int ObLogJoin::re_est_cost(EstimateCostInfo &param, double &card, double &cost)
int ObLogJoin::do_re_est_cost(EstimateCostInfo &param, double &card, double &op_cost, double &cost)
{
int ret = OB_SUCCESS;
EstimateCostInfo left_param;
@ -291,55 +291,66 @@ int ObLogJoin::re_est_cost(EstimateCostInfo &param, double &card, double &cost)
double right_output_rows = 0.0;
double left_cost = 0.0;
double right_cost = 0.0;
double op_cost = 0.0;
ObLogicalOperator *left_child = get_child(ObLogicalOperator::first_child);
ObLogicalOperator *right_child = get_child(ObLogicalOperator::second_child);
const int64_t parallel = param.need_parallel_;
if (OB_ISNULL(left_child) || OB_ISNULL(right_child)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpect null join path", K(ret));
} else if (OB_ISNULL(join_path_)) {
card = get_card();
op_cost = get_op_cost();
left_cost = left_child->get_cost();
right_cost = right_child->get_cost();
cost = get_cost();
} else if (OB_FAIL(join_path_->get_re_estimate_param(param,
left_param,
right_param))) {
right_param,
true))) {
LOG_WARN("failed to get re estimate param", K(ret));
} else if (OB_FAIL(SMART_CALL(left_child->re_est_cost(left_param,
left_output_rows,
left_cost)))) {
LOG_WARN("failed to re estimate cost", K(ret));
} else if (OB_FAIL(join_path_->try_set_batch_nlj_for_right_access_path(true))) {
LOG_WARN("failed to try set batch nlj for right access path", K(ret));
} else if (OB_FAIL(SMART_CALL(right_child->re_est_cost(right_param,
right_output_rows,
right_cost)))) {
LOG_WARN("failed to re estimate cost", K(ret));
} else if (OB_FAIL(join_path_->try_set_batch_nlj_for_right_access_path(false))) {
LOG_WARN("failed to try set batch nlj for right access path", K(ret));
} else if (OB_FAIL(join_path_->re_estimate_rows(left_output_rows,
right_output_rows,
card))) {
LOG_WARN("failed to re estimate rows", K(ret));
} else if (NESTED_LOOP_JOIN == join_algo_) {
if (OB_FAIL(join_path_->cost_nest_loop_join(left_output_rows,
if (OB_FAIL(join_path_->cost_nest_loop_join(parallel,
left_output_rows,
left_cost,
right_output_rows,
right_cost,
right_cost,
true,
op_cost,
cost))) {
LOG_WARN("failed to cost nest loop join", K(*this), K(ret));
}
} else if(MERGE_JOIN == join_algo_) {
if (OB_FAIL(join_path_->cost_merge_join(left_output_rows,
if (OB_FAIL(join_path_->cost_merge_join(parallel,
left_output_rows,
left_cost,
right_output_rows,
right_cost,
true,
op_cost,
cost))) {
LOG_WARN("failed to cost merge join", K(*this), K(ret));
}
} else if(HASH_JOIN == join_algo_) {
if (OB_FAIL(join_path_->cost_hash_join(left_output_rows,
if (OB_FAIL(join_path_->cost_hash_join(parallel,
left_output_rows,
left_cost,
right_output_rows,
right_cost,
true,
op_cost,
cost))) {
LOG_WARN("failed to cost hash join", K(*this), K(ret));
@ -352,12 +363,6 @@ int ObLogJoin::re_est_cost(EstimateCostInfo &param, double &card, double &cost)
if (param.need_row_count_ >=0 && param.need_row_count_ < get_card()) {
card = param.need_row_count_;
}
cost = op_cost + left_cost + right_cost;
if (param.override_) {
set_card(card);
set_op_cost(op_cost);
set_cost(cost);
}
}
return ret;
}