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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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19
src/sql/optimizer/ob_log_subplan_scan.cpp
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@ -104,19 +104,17 @@ int ObLogSubPlanScan::get_plan_item_info(PlanText &plan_text,
return ret;
}
int ObLogSubPlanScan::re_est_cost(EstimateCostInfo &param, double &card, double &cost)
int ObLogSubPlanScan::do_re_est_cost(EstimateCostInfo &param, double &card, double &op_cost, double &cost)
{
int ret = OB_SUCCESS;
ObLogicalOperator *child = NULL;
int parallel = 1.0;
const int64_t parallel = param.need_parallel_;
double selectivity = 1.0;
if (OB_ISNULL(child = get_child(ObLogicalOperator::first_child)) ||
OB_ISNULL(get_plan())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(child), K(ret));
} else if (OB_UNLIKELY((parallel = get_parallel()) < 1)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected parallel degree", K(parallel), K(ret));
} else if (OB_FALSE_IT(get_plan()->get_selectivity_ctx().init_op_ctx(&child->get_output_equal_sets(), child->get_card()))) {
} else if (OB_FAIL(ObOptSelectivity::calculate_selectivity(get_plan()->get_basic_table_metas(),
get_plan()->get_selectivity_ctx(),
get_filter_exprs(),
@ -134,16 +132,11 @@ int ObLogSubPlanScan::re_est_cost(EstimateCostInfo &param, double &card, double
LOG_WARN("failed to re est exchange cost", K(ret));
} else {
ObOptimizerContext &opt_ctx = get_plan()->get_optimizer_context();
double op_cost = ObOptEstCost::cost_filter_rows(child_card / parallel,
get_filter_exprs(),
opt_ctx.get_cost_model_type());
op_cost = ObOptEstCost::cost_filter_rows(child_card / parallel,
get_filter_exprs(),
opt_ctx.get_cost_model_type());
cost = child_cost + op_cost;
card = child_card * selectivity;
if (param.override_) {
set_op_cost(op_cost);
set_cost(cost);
set_card(card);
}
}
}
return ret;