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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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1
src/share/stat/ob_opt_stat_manager.cpp
View File

@ -636,6 +636,7 @@ int ObOptStatManager::get_table_stat(const uint64_t tenant_id,
opt_stat.get_macro_block_num() * scale_ratio,
opt_stat.get_micro_block_num() * scale_ratio);
stat.set_last_analyzed(opt_stat.get_last_analyzed());
stat.set_stat_locked(opt_stat.is_locked());
}
return ret;
}

3
src/share/stat/ob_opt_stat_sql_service.cpp
View File

@ -1953,7 +1953,8 @@ int ObOptStatSqlService::fetch_table_rowcnt(const uint64_t tenant_id,
ObSchemaUtils::get_real_table_mappings_tid(table_id) : table_id;
if (OB_FAIL(gen_tablet_list_str(all_tablet_ids, all_ls_ids, tablet_list_str, tablet_ls_list_str))) {
LOG_WARN("failed to gen tablet list str", K(ret));
} else if (OB_FAIL(raw_sql.append_fmt("select /*+opt_param('enable_in_range_optimization','true')*/ tablet_id, max(row_count) from "\
} else if (OB_FAIL(raw_sql.append_fmt("select /*+opt_param('enable_in_range_optimization','true') opt_param('use_default_opt_stat','true')*/"\
"tablet_id, max(row_count) from "\
"(select cast(tablet_id as unsigned) as tablet_id, cast(inserts - deletes as signed) as row_count "\
"from %s where tenant_id = %lu and table_id = %lu and tablet_id in %s union all "\
"select cast(tablet_id as unsigned) as tablet_id, cast(row_count as signed) as row_count from %s, "\

9
src/share/stat/ob_stat_item.h
View File

@ -302,7 +302,8 @@ public:
ObGlobalTableStat()
: row_count_(0), row_size_(0), data_size_(0),
macro_block_count_(0), micro_block_count_(0), part_cnt_(0), last_analyzed_(0),
cg_macro_cnt_arr_(), cg_micro_cnt_arr_()
cg_macro_cnt_arr_(), cg_micro_cnt_arr_(),
stat_locked_(false)
{}
void add(int64_t rc, int64_t rs, int64_t ds, int64_t mac, int64_t mic);
@ -318,6 +319,8 @@ public:
const ObIArray<int64_t> &get_cg_macro_arr() const { return cg_macro_cnt_arr_; }
const ObIArray<int64_t> &get_cg_micro_arr() const { return cg_micro_cnt_arr_; }
void set_last_analyzed(int64_t last_analyzed) { last_analyzed_ = last_analyzed; }
void set_stat_locked(bool locked) { stat_locked_ = locked; }
bool get_stat_locked() const { return stat_locked_; }
TO_STRING_KV(K(row_count_),
@ -328,7 +331,8 @@ public:
K(part_cnt_),
K(last_analyzed_),
K(cg_macro_cnt_arr_),
K(cg_micro_cnt_arr_));
K(cg_micro_cnt_arr_),
K(stat_locked_));
private:
int64_t row_count_;
@ -340,6 +344,7 @@ private:
int64_t last_analyzed_;
ObArray<int64_t> cg_macro_cnt_arr_;
ObArray<int64_t> cg_micro_cnt_arr_;
bool stat_locked_;
};
class ObGlobalNullEval