# TestDropStatsFromKV drop table if exists t; create table t (c1 varchar(20), c2 varchar(20)); insert into t values("1","1"),("2","2"),("3","3"),("4","4"); insert into t select * from t; insert into t select * from t; analyze table t all columns with 2 topn; set @a = (select tidb_table_id from information_schema.tables where table_name = "t" and table_schema = "executor__kv"); select modify_count, count from mysql.stats_meta where table_id = @a; select hist_id from mysql.stats_histograms where table_id = @a; select count(*)>0 from mysql.stats_buckets where table_id = @a; select count(*)>0 from mysql.stats_top_n where table_id = @a; drop stats t; select modify_count, count from mysql.stats_meta where table_id = @a; select hist_id from mysql.stats_histograms where table_id = @a; select hist_id, bucket_id from mysql.stats_buckets where table_id = @a; select hist_id from mysql.stats_top_n where table_id = @a;