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fix optimizer histogram memory leak in KVCACHE

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This commit is contained in:
wangt1xiuyi
2023-02-09 15:55:39 +00:00
committed by ob-robot
parent 5134763d1e
commit 44302ab27f
19 changed files with 289 additions and 153 deletions
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19
src/share/stat/ob_dbms_stats_utils.cpp
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@ -89,26 +89,29 @@ int ObDbmsStatsUtils::init_col_stats(ObIAllocator &allocator,
* then it's even distributed, Otherwise, it's skewed.
*/
int ObDbmsStatsUtils::check_range_skew(ObHistType hist_type,
const ObIArray<ObHistBucket> &bkts,
const ObHistBucket *bkts,
const int64_t bkt_size,
int64_t standard_cnt,
bool &is_even_distributed)
{
int ret = OB_SUCCESS;
is_even_distributed = false;
if (hist_type == ObHistType::FREQUENCY) {
if (OB_ISNULL(bkts) || OB_UNLIKELY(bkt_size == 0)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected error", K(ret), K(bkts), K(bkt_size));
} else if (hist_type == ObHistType::FREQUENCY) {
is_even_distributed = true;
for (int64_t i = 0; is_even_distributed && i < bkts.count(); ++i) {
for (int64_t i = 0; is_even_distributed && i < bkt_size; ++i) {
if (i == 0) {
is_even_distributed = standard_cnt == bkts.at(i).endpoint_num_;
is_even_distributed = standard_cnt == bkts[i].endpoint_num_;
} else {
is_even_distributed = standard_cnt == bkts.at(i).endpoint_num_ -
bkts.at(i - 1).endpoint_num_;
is_even_distributed = standard_cnt == bkts[i].endpoint_num_ - bkts[i - 1].endpoint_num_;
}
}
} else if (hist_type == ObHistType::HYBIRD) {
is_even_distributed = true;
for (int64_t i = 0; is_even_distributed && i < bkts.count(); ++i) {
is_even_distributed = bkts.at(i).endpoint_repeat_count_ <= standard_cnt;
for (int64_t i = 0; is_even_distributed && i < bkt_size; ++i) {
is_even_distributed = bkts[i].endpoint_repeat_count_ <= standard_cnt;
}
} else {/*do nothing*/}
return ret;