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

[FEAT MERGE] support auto dop

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

50
src/sql/optimizer/ob_log_sequence.cpp
View File

@ -82,38 +82,38 @@ int ObLogSequence::est_width()
return ret;
}
int ObLogSequence::re_est_cost(EstimateCostInfo &param, double &card, double &cost)
int ObLogSequence::do_re_est_cost(EstimateCostInfo &param, double &card, double &op_cost, double &cost)
{
int ret = OB_SUCCESS;
double child_card = 0.0;
double child_cost = 0.0;
ObLogicalOperator *child = get_child(ObLogicalOperator::first_child);
if (OB_ISNULL(get_plan())) {
if (0 == get_num_of_child()) {
card = get_card();
op_cost = get_op_cost();
cost = get_cost();
} else if (OB_ISNULL(get_plan()) || OB_ISNULL(child)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
LOG_WARN("get unexpected null", K(ret), K(get_plan()), K(child));
} else if (OB_FAIL(SMART_CALL(child->re_est_cost(param, child_card, child_cost)))) {
LOG_WARN("failed to re est cost", K(ret));
} else {
ObOptimizerContext &opt_ctx = get_plan()->get_optimizer_context();
if (0 == get_num_of_child()) {
card = get_card();
cost = get_cost();
} else if (OB_ISNULL(child)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (OB_FAIL(SMART_CALL(child->re_est_cost(param, child_card, child_cost)))) {
LOG_WARN("failed to re est cost", K(ret));
} else {
double op_cost = 0.0;
op_cost += ObOptEstCost::cost_sequence(child_card,
nextval_seq_ids_.count(),
opt_ctx.get_cost_model_type());
cost = child_cost + op_cost;
card = child_card;
if (param.override_) {
set_op_cost(op_cost);
set_cost(cost);
set_card(card);
}
}
op_cost = ObOptEstCost::cost_sequence(child_card,
nextval_seq_ids_.count(),
get_plan()->get_optimizer_context().get_cost_model_type());
cost = child_cost + op_cost;
card = child_card;
}
return ret;
}
int ObLogSequence::compute_op_parallel_and_server_info()
{
int ret = common::OB_SUCCESS;
if (get_num_of_child() == 0) {
ret = set_parallel_and_server_info_for_match_all();
} else {
ret = ObLogicalOperator::compute_op_parallel_and_server_info();
}
return ret;
}