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[FEAT MERGE] [CP] Improve the rowcount estimation

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Co-authored-by: akaError <lzg020616@163.com>
This commit is contained in:
xianyu-w
2024-01-22 04:12:26 +00:00
committed by ob-robot
parent a125d6cf00
commit d2ab1a4aae
70 changed files with 5953 additions and 3722 deletions
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src/sql/optimizer/ob_log_count.cpp
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@ -82,6 +82,8 @@ int ObLogCount::do_re_est_cost(EstimateCostInfo &param, double &card, double &op
OB_ISNULL(child = get_child(ObLogicalOperator::first_child))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(get_plan()), K(child), 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(),