hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

adjust some optimizer stats unstable cases for master

Browse Source
This commit is contained in:
wangt1xiuyi
2023-01-05 14:15:30 +00:00
committed by ob-robot
parent d1698b9e9a
commit 58ae97b3c4
2 changed files with 20 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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

@ -861,6 +861,7 @@ int ObBasicStatsEstimator::check_stat_need_re_estimate(const ObTableStatParam &o
}
//2.set partition info
new_extra.type_ = origin_extra.type_;
new_extra.start_time_ = origin_extra.start_time_;
new_extra.nth_part_ = origin_extra.nth_part_;
bool find_it = (new_extra.type_ == TABLE_LEVEL);
if (new_extra.type_ == PARTITION_LEVEL) {

33
src/share/stat/ob_dbms_stats_utils.cpp
View File

@ -292,33 +292,38 @@ int ObDbmsStatsUtils::split_batch_write(sql::ObExecContext &ctx,
LOG_WARN("get unexpected null", K(ret), K(ctx.get_my_session()));
}
while (OB_SUCC(ret) &&
(idx_tab_stat != table_stats.count() || idx_col_stat != column_stats.count())) {
(idx_tab_stat < table_stats.count() || idx_col_stat < column_stats.count())) {
ObSEArray<ObOptTableStat*, 4> write_table_stats;
ObSEArray<ObOptColumnStat*, 4> write_column_stats;
if (OB_UNLIKELY(idx_tab_stat > table_stats.count() || idx_col_stat > column_stats.count())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpectd error", K(ret), K(idx_tab_stat), K(table_stats.count()),
K(idx_col_stat), K(column_stats.count()));
} else if (table_stats.count() <= MAX_NUM_OF_WRITE_STATS &&
column_stats.count() <= MAX_NUM_OF_WRITE_STATS) {
if (OB_FAIL(write_table_stats.assign(table_stats))) {
LOG_WARN("failed to assign table stats", K(ret));
} else if (OB_FAIL(write_column_stats.assign(column_stats))) {
LOG_WARN("failed to assign column stats", K(ret));
} else {
idx_tab_stat = table_stats.count();
idx_col_stat = column_stats.count();
}
} else {
for (int64_t i = 0; OB_SUCC(ret) && i < MAX_NUM_OF_WRITE_STATS && idx_tab_stat < table_stats.count(); ++i) {
if (OB_FAIL(write_table_stats.push_back(table_stats.at(idx_tab_stat++)))) {
LOG_WARN("failed to push back", K(ret));
} else {/*do nothing*/}
}
for (int64_t i = 0; OB_SUCC(ret) && i < MAX_NUM_OF_WRITE_STATS && idx_col_stat < column_stats.count(); ++i) {
if (OB_FAIL(write_column_stats.push_back(column_stats.at(idx_col_stat++)))) {
int64_t col_stat_cnt = 0;
int64_t hist_stat_cnt = 0;
while (OB_SUCC(ret) &&
col_stat_cnt < MAX_NUM_OF_WRITE_STATS &&
hist_stat_cnt < MAX_NUM_OF_WRITE_STATS &&
idx_col_stat < column_stats.count()) {
ObOptColumnStat *cur_opt_col_stat = column_stats.at(idx_col_stat);
if (OB_ISNULL(cur_opt_col_stat)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null", K(ret), K(cur_opt_col_stat));
} else if (OB_FAIL(write_column_stats.push_back(cur_opt_col_stat))) {
LOG_WARN("failed to push back", K(ret));
} else {/*do nothing*/}
} else {
++ col_stat_cnt;
++ idx_col_stat;
if (cur_opt_col_stat->get_histogram().is_valid()) {
hist_stat_cnt += cur_opt_col_stat->get_histogram().get_bucket_size();
}
}
}
}
if (OB_SUCC(ret)) {