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[FEAT MERGE] skip scan feature and performance optimization

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This commit is contained in:
obdev
2023-01-04 09:08:22 +00:00
committed by ob-robot
parent ad415b4359
commit 07b1224a51
119 changed files with 6176 additions and 2010 deletions
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33
src/sql/optimizer/ob_join_order.h
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@ -497,6 +497,14 @@ struct EstimateCostInfo {
DISALLOW_COPY_AND_ASSIGN(Path);
};
enum OptSkipScanState
{
SS_DISABLE = 0,
SS_UNSET,
SS_HINT_ENABLE,
SS_NDV_SEL_ENABLE
};
class AccessPath : public Path
{
public:
@ -529,7 +537,8 @@ struct EstimateCostInfo {
est_records_(),
range_prefix_count_(0),
table_opt_info_(),
for_update_(false)
for_update_(false),
use_skip_scan_(OptSkipScanState::SS_UNSET)
{
}
virtual ~AccessPath() {
@ -562,7 +571,7 @@ struct EstimateCostInfo {
return NULL == table_opt_info_ ? false :
OptimizationMethod::RULE_BASED != table_opt_info_->optimization_method_;
}
const ObRangesArray &get_query_ranges() const;
const ObIArray<ObNewRange> &get_query_ranges() const;
virtual void get_name_internal(char *buf, const int64_t buf_len, int64_t &pos) const
{
BUF_PRINTF("@");
@ -589,7 +598,8 @@ struct EstimateCostInfo {
K_(sample_info),
K_(range_prefix_count),
K_(for_update),
K_(use_das));
K_(use_das),
K_(use_skip_scan));
public:
//member variables
uint64_t table_id_;
@ -616,6 +626,7 @@ struct EstimateCostInfo {
int64_t range_prefix_count_; // prefix count
BaseTableOptInfo *table_opt_info_;
bool for_update_;
OptSkipScanState use_skip_scan_;
private:
DISALLOW_COPY_AND_ASSIGN(AccessPath);
};
@ -1335,7 +1346,8 @@ struct NullAwareAntiJoinInfo {
const ObIndexInfoCache &index_info_cache,
PathHelper &helper,
AccessPath *&ap,
bool use_das);
bool use_das,
OptSkipScanState use_skip_scan);
int will_use_das(const uint64_t table_id,
const uint64_t ref_id,
@ -1345,6 +1357,13 @@ struct NullAwareAntiJoinInfo {
bool &create_das_path,
bool &create_basic_path);
int will_use_skip_scan(const uint64_t table_id,
const uint64_t ref_id,
const uint64_t index_id,
const ObIndexInfoCache &index_info_cache,
PathHelper &helper,
OptSkipScanState &use_skip_scan);
int get_access_path_ordering(const uint64_t table_id,
const uint64_t ref_table_id,
const uint64_t index_id,
@ -1891,7 +1910,8 @@ struct NullAwareAntiJoinInfo {
const common::ObIArray<ObRawExpr*> &where_conditions);
int fill_query_range_info(const QueryRangeInfo &range_info,
ObCostTableScanInfo &est_cost_info);
ObCostTableScanInfo &est_cost_info,
bool use_skip_scan);
int compute_table_location_for_paths(ObIArray<AccessPath *> &access_paths,
ObIArray<ObTablePartitionInfo*> &tbl_part_infos);
@ -2067,7 +2087,8 @@ struct NullAwareAntiJoinInfo {
const ObQueryRange* query_range,
ObCostTableScanInfo &est_scan_cost_info,
bool &is_nl_with_extended_range,
bool is_link = false);
bool is_link = false,
bool use_skip_scan = false);
int can_extract_unprecise_range(const uint64_t table_id,
const ObRawExpr *filter,