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fix storage estimate row can't used in opt stats row_count is 0

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This commit is contained in:
obdev
2023-02-07 20:51:29 +08:00
committed by ob-robot
parent 62be804b69
commit cc70336767
10 changed files with 9 additions and 52 deletions
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7
src/sql/optimizer/ob_join_order.cpp
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@ -10723,12 +10723,7 @@ int ObJoinOrder::init_est_sel_info_for_access_path(const uint64_t table_id,
}
// 2. try to estimate the whole memtable
if (OB_SUCC(ret) &&
table_meta_info_.table_row_count_ <= 0 &&
!table_meta_info_.has_opt_stat_) {
// a newly created which only has memtable data, and do not have any stats
// we use default rowcount here, and try to refine the value by estimating the memtable.
table_meta_info_.is_only_memtable_data_ = true;
if (OB_SUCC(ret) && table_meta_info_.table_row_count_ <= 0) {
if (origin_part_cnt > 1) {
// do nothing
} else if (OB_FAIL(ObAccessPathEstimation::estimate_full_table_rowcount(