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[FEAT MERGE] Full-text Search Index + [CP]Adaptive DAS Group Rescan + Json Multi-Value Index

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Co-authored-by: saltonz <saltonzh@gmail.com>
Co-authored-by: pe-99y <315053752@qq.com>
Co-authored-by: JinmaoLi <ljm.csmaster@gmail.com>
This commit is contained in:
Tyshawn
2024-04-22 05:46:18 +00:00
committed by ob-robot
parent 3dd0008dc9
commit f1a6170c93
338 changed files with 28067 additions and 3880 deletions
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31
src/sql/optimizer/ob_opt_est_cost_model.cpp
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@ -1564,6 +1564,37 @@ int ObOptEstCostModel::cost_row_store_index_scan(const ObCostTableScanInfo &est_
double spatial_cost = row_count * cost_params_.get_spatial_per_row_cost(sys_stat_);
index_scan_cost += spatial_cost;
LOG_TRACE("OPT::[COST SPATIAL INDEX SCAN]", K(spatial_cost), K(ret));
} else if (est_cost_info.index_meta_info_.is_fulltext_index_) {
// 全文索引一期：对于每一个 token，都需要:
// 1. 以 [token, token] 为 range 扫描 inv_index 两次，计算一个聚合函数；
// 2. 全表扫描 doc_id_rowkey_index, 计算一个聚合函数；
// 3. 用过滤后的 doc_id 对 doc_id_rowkey_index 做回表
int token_count = 1; // 此处先假设 search query 只有一个 token，后续要调整
double token_sel = DEFAULT_SEL;
double inv_index_range_scan_cost = 0;
double doc_id_full_scan_cost = 0;
double doc_id_index_back_cost = 0;
if (OB_FAIL(cost_range_scan(est_cost_info,
true,
row_count * token_sel,
inv_index_range_scan_cost))) {
LOG_WARN("Failed to estimate scan cost", K(ret));
} else if (OB_FAIL(cost_range_scan(est_cost_info,
true,
row_count,
doc_id_full_scan_cost))) {
LOG_WARN("Failed to estimate scan cost", K(ret));
} else if (OB_FAIL(cost_range_get(est_cost_info,
true,
row_count * token_sel,
doc_id_index_back_cost))) {
LOG_WARN("Failed to estimate get cost", K(ret));
}
double aggregation_cost = (row_count * token_sel + row_count) * cost_params_.get_per_aggr_func_cost(sys_stat_);
double fulltext_scan_cost = 2 * inv_index_range_scan_cost + doc_id_full_scan_cost +
aggregation_cost + doc_id_index_back_cost;
index_scan_cost = token_count * fulltext_scan_cost;
LOG_TRACE("OPT::[COST FULLTEXT INDEX SCAN]", K(fulltext_scan_cost), K(ret));
}
//add index skip scan cost
if (OB_FAIL(ret)) {