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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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36
src/sql/optimizer/ob_log_temp_table_insert.cpp
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@ -20,6 +20,7 @@
#include "sql/optimizer/ob_optimizer_util.h"
#include "sql/optimizer/ob_log_operator_factory.h"
#include "sql/optimizer/ob_log_plan.h"
#include "sql/optimizer/ob_join_order.h"
using namespace oceanbase::sql;
using namespace oceanbase::common;
@ -73,6 +74,24 @@ int ObLogTempTableInsert::compute_op_ordering()
}
int ObLogTempTableInsert::est_cost()
{
int ret = OB_SUCCESS;
double card = 0.0;
double op_cost = 0.0;
double cost = 0.0;
EstimateCostInfo param;
param.need_parallel_ = get_parallel();
if (OB_FAIL(do_re_est_cost(param, card, op_cost, cost))) {
LOG_WARN("failed to do re est cost", K(ret));
} else {
set_op_cost(op_cost);
set_cost(cost);
set_card(card);
}
return ret;
}
int ObLogTempTableInsert::do_re_est_cost(EstimateCostInfo &param, double &card, double &op_cost, double &cost)
{
int ret = OB_SUCCESS;
int64_t parallel = 0;
@ -81,18 +100,17 @@ int ObLogTempTableInsert::est_cost()
OB_ISNULL(child = get_child(ObLogicalOperator::first_child))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret));
} else if (OB_UNLIKELY((parallel = child->get_parallel()) < 1)) {
} else if (OB_UNLIKELY(param.need_parallel_ < 1)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected parallel degree", K(parallel), K(ret));
LOG_WARN("get unexpected parallel degree", K(param.need_parallel_), K(ret));
} else if (OB_FAIL(child->re_est_cost(param, card, cost))) {
LOG_WARN("failed to do re est cost", K(ret));
} else {
double per_dop_card = child->get_card() / parallel;
ObOptimizerContext &opt_ctx = get_plan()->get_optimizer_context();
double op_cost = ObOptEstCost::cost_material(per_dop_card,
child->get_width(),
opt_ctx.get_cost_model_type());
set_op_cost(op_cost);
set_cost(child->get_cost() + op_cost);
set_card(child->get_card());
op_cost = ObOptEstCost::cost_material(card / param.need_parallel_,
child->get_width(),
opt_ctx.get_cost_model_type());
cost += op_cost;
}
return ret;
}