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fix calc hybrid hist core caused by div 0 in pquery

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This commit is contained in:
wangt1xiuyi
2023-09-09 12:54:03 +00:00
committed by ob-robot
parent 6b6a8ca778
commit 8cdc9fffe9
1 changed files with 2 additions and 2 deletions
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4
src/share/stat/ob_hybrid_hist_estimator.cpp
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@ -598,7 +598,7 @@ int ObHybridHistograms::build_hybrid_hist(ObIArray<BucketNode> &bucket_pairs,
dynamic_size = true;
// first bucket always contain only one values. following code will handle first value is
// popular value or not.
if (bucket_pairs.at(0).is_pop_) {
if (bucket_pairs.at(0).is_pop_ || bucket_num == pop_count + 1) {
bucket_size = (total_count - pop_freq) / (bucket_num - pop_count);
} else {
bucket_size = (total_count - pop_freq - bucket_pairs.at(0).ep_count_)
@ -678,7 +678,7 @@ int ObHybridHistograms::build_hybrid_hist(ObAggregateProcessor::HybridHistExtraR
// first bucket always contain only one values. following code will handle first value is
// popular value or not.
BucketDesc *desc = reinterpret_cast<BucketDesc*>(row->get_extra_payload());
if (desc->is_pop_) {
if (desc->is_pop_ || bucket_num == pop_count + 1) {
bucket_size = (total_count - pop_freq) / (bucket_num - pop_count);
} else {
bucket_size = (total_count - pop_freq - desc->ep_count_) / (bucket_num - pop_count - 1);