unexpected result when query statements_summary using partition table

[wjhuang2016]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

create table t (a int, b int, c int, index ia(a)) partition by hash (a) partitions 16;
select  * from t t1 join t t2 on t1.b = t2.b join t t3 on t2.b=t3.b join t t4 on t3.b=t4.b where t3.a=1 and t2.a=2;
select QUERY_SAMPLE_TEXT, plan from information_schema.statements_summary where SCHEMA_NAME = 'test' and STMT_TYPE = 'Select';

ref https://github.com/pingcap/tidb/pull/41461

2. What did you expect to see? (Required)

One row in the result

3. What did you see instead (Required)

mysql> select QUERY_SAMPLE_TEXT, plan from information_schema.statements_summary where SCHEMA_NAME = 'test' and STMT_TYPE = 'Select';
+--------------------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| QUERY_SAMPLE_TEXT                                                                                                  | plan                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
+--------------------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| select plan from information_schema.statements_summary where SCHEMA_NAME = 'test' and STMT_TYPE = 'Select'         |  id                  task    estRows operator info                                   actRows execution info                      memory  disk
    Projection_4        root    8000    Column#93                                       1       time:42.6ms, loops:2, Concurrency:5 26.2 KB N/A
    └─Selection_5       root    8000    eq(Column#3, "Select"), eq(Column#4, "test")    1       time:42.4ms, loops:2                28.6 KB N/A
      └─MemTableScan_6  root    10000   table:STATEMENTS_SUMMARY                        3       time:42.3ms, loops:3                N/A     N/A                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| select  * from t t1 join t t2 on t1.b = t2.b join t t3 on t2.b=t3.b join t t4 on t3.b=t4.b where t3.a=1 and t2.a=2 |  id                                  task        estRows operator info                                                                                                           actRows execution info                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              memory      disk
    Projection_20                       root        19.51   test.t.a, test.t.b, test.t.c, test.t.a, test.t.b, test.t.c, test.t.a, test.t.b, test.t.c, test.t.a, test.t.b, test.t.c  0       time:7.02ms, loops:1, Concurrency:OFF                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       98.9 KB     N/A
    └─HashJoin_22                       root        19.51   inner join, equal:[eq(test.t.b, test.t.b)]                                                                              0       time:7.02ms, loops:1, build_hash_table:{total:6.87ms, fetch:6.87ms, build:0s}                                                                                                                                                                                                                                                                                                                                                                                                                                                               2 KB        0 Bytes
      ├─HashJoin_24(Build)              root        15.61   inner join, equal:[eq(test.t.b, test.t.b)]                                                                              0       time:6.7ms, loops:1, build_hash_table:{total:6.07ms, fetch:6.07ms, build:0s}                                                                                                                                                                                                                                                                                                                                                                                                                                                                2 KB        0 Bytes
      │ ├─HashJoin_25(Build)            root        12.49   inner join, equal:[eq(test.t.b, test.t.b)]                                                                              0       time:5.86ms, loops:1, build_hash_table:{total:5.58ms, fetch:5.58ms, build:0s}                                                                                                                                                                                                                                                                                                                                                                                                                                                               2 KB        0 Bytes
      │ │ ├─IndexLookUp_34(Build)       root        9.99                                                                                                                            0       time:5.4ms, loops:1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         238 Bytes   N/A
      │ │ │ ├─IndexRangeScan_31(Build)  cop[tikv]   10      table:t3, index:ia(a), range:[1,1], keep order:false, stats:pseudo                                                      0       time:5.23ms, loops:1, cop_task: {num: 1, max: 1.9ms, proc_keys: 0, tot_proc: 40.5µs, tot_wait: 787.6µs, copr_cache_hit_ratio: 0.00, build_task_duration: 7.58µs, max_distsql_concurrency: 1}, rpc_info:{Cop:{num_rpc:2, total_time:2.74ms}, rpc_errors:{epoch_not_match:1}}, backoff{regionMiss: 2ms}, tikv_task:{time:0s, loops:1}, scan_detail: {total_keys: 1, get_snapshot_time: 20.3µs, rocksdb: {block: {cache_hit_count: 2}}}, time_detail: {total_process_time: 40.5µs, total_wait_time: 787.6µs, tikv_wall_time: 1.14ms}   N/A         N/A
      │ │ │ └─Selection_33(Probe)       cop[tikv]   9.99    not(isnull(test.t.b))                                                                                                   0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   N/A         N/A
      │ │ │   └─TableRowIDScan_32       cop[tikv]   10      table:t3, keep order:false, stats:pseudo                                                                                0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   N/A         N/A
      │ │ └─IndexLookUp_30(Probe)       root        9.99                                                                                                                            0       time:5.74ms, loops:1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        238 Bytes   N/A
      │ │   ├─IndexRangeScan_27(Build)  cop[tikv]   10      table:t2, index:ia(a), range:[2,2], keep order:false, stats:pseudo                                                      0       time:5.53ms, loops:1, cop_task: {num: 1, max: 1.55ms, proc_keys: 0, tot_proc: 41.3µs, tot_wait: 269.8µs, copr_cache_hit_ratio: 0.00, build_task_duration: 17.1µs, max_distsql_concurrency: 1}, rpc_info:{Cop:{num_rpc:2, total_time:2.83ms}, rpc_errors:{epoch_not_match:1}}, backoff{regionMiss: 2ms}, tikv_task:{time:0s, loops:1}, scan_detail: {total_keys: 1, get_snapshot_time: 25.7µs, rocksdb: {block: {cache_hit_count: 2}}}, time_detail: {total_process_time: 41.3µs, total_wait_time: 269.8µs, tikv_wall_time: 644µs}   N/A         N/A
      │ │   └─Selection_29(Probe)       cop[tikv]   9.99    not(isnull(test.t.b))                                                                                                   0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   N/A         N/A
      │ │     └─TableRowIDScan_28       cop[tikv]   10      table:t2, keep order:false, stats:pseudo                                                                                0                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   N/A         N/A
      │ └─TableReader_37(Probe)         root        9990    data:Selection_36                                                                                                       0       time:6.63ms, loops:1, cop_task: {num: 1, max: 2.86ms, proc_keys: 0, tot_proc: 148µs, tot_wait: 644.9µs, copr_cache_hit_ratio: 0.00, build_task_duration: 31µs, max_distsql_concurrency: 1}, rpc_info:{Cop:{num_rpc:2, total_time:4.15ms}, rpc_errors:{epoch_not_match:1}}, backoff{regionMiss: 2ms}                                                                                                                                                                                                                                     239 Bytes   N/A
      │   └─Selection_36                cop[tikv]   9990    not(isnull(test.t.b))                                                                                                   0       tikv_task:{time:0s, loops:1}, scan_detail: {total_keys: 1, get_snapshot_time: 39.8µs, rocksdb: {block: {cache_hit_count: 2}}}, time_detail: {total_process_time: 148µs, total_wait_time: 644.9µs, tikv_wall_time: 2.44ms}                                                                                                                                                                                                                                                                                                               N/A         N/A
      │     └─TableFullScan_35          cop[tikv]   10000   table:t1, keep order:false, stats:pseudo                                                                                0       tikv_task:{time:0s, loops:1}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                N/A         N/A
      └─TableReader_40(Probe)           root        9990    data:Selection_39                                                                                                       0       time:5.93ms, loops:1, cop_task: {num: 1, max: 1.89ms, proc_keys: 0, tot_proc: 149µs, tot_wait: 626.3µs, copr_cache_hit_ratio: 0.00, build_task_duration: 2.46µs, max_distsql_concurrency: 1}, rpc_info:{Cop:{num_rpc:2, total_time:3.13ms}, rpc_errors:{epoch_not_match:1}}, backoff{regionMiss: 2ms}                                                                                                                                                                                                                                   237 Bytes   N/A
        └─Selection_39                  cop[tikv]   9990    not(isnull(test.t.b))                                                                                                   0       tikv_task:{time:0s, loops:1}, scan_detail: {total_keys: 1, get_snapshot_time: 202.6µs, rocksdb: {block: {cache_hit_count: 2}}}, time_detail: {total_process_time: 149µs, total_wait_time: 626.3µs, tikv_wall_time: 1.23ms}                                                                                                                                                                                                                                                                                                              N/A         N/A
          └─TableFullScan_38            cop[tikv]   10000   table:t4, keep order:false, stats:pseudo                                                                                0       tikv_task:{time:0s, loops:1}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                N/A         N/A |
+--------------------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
2 rows in set (0.01 sec)

4. What is your TiDB version? (Required)

master