From 8a67280deb56e85cf4ecc927752ba0dc29bac69c Mon Sep 17 00:00:00 2001 From: ChangerR Date: Tue, 26 Nov 2024 07:18:08 +0000 Subject: [PATCH] fix mysqltest --- src/share/stat/ob_incremental_stat_estimator.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/share/stat/ob_incremental_stat_estimator.cpp b/src/share/stat/ob_incremental_stat_estimator.cpp index be5fe5ab18..2d7acf8359 100644 --- a/src/share/stat/ob_incremental_stat_estimator.cpp +++ b/src/share/stat/ob_incremental_stat_estimator.cpp @@ -649,7 +649,7 @@ int ObIncrementalStatEstimator::derive_global_col_stat(ObExecContext &ctx, } } if (OB_SUCC(ret)) { - int64_t num_distinct = ObOptSelectivity::scale_distinct(total_row_cnt, sample_size, ndv_eval.get()); + int64_t num_distinct = ndv_eval.get() == 0 ? 0 : ObOptSelectivity::scale_distinct(total_row_cnt, sample_size, ndv_eval.get()); col_stat->set_table_id(param.column_params_.at(i).need_basic_stat() ? param.table_id_ : OB_INVALID_ID); col_stat->set_partition_id(partition_id); col_stat->set_column_id(param.column_params_.at(i).column_id_);