The result of subquery with all is not correct

[SeaRise]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

create table t(a int);
create table t3(id int primary key,a int);
insert into t values(1),(null);
insert into t3 values(1,2),(2,2);
alter table t set tiflash replica 1;
alter table t3 set tiflash replica 1;
select * from t where a = all ( select a from t3 where t.a=t3.id);
/*
+-------------------------------------------+---------+-------------------+---------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| id                                        | estRows | task              | access object | operator info                                                                                                                                                            |
+-------------------------------------------+---------+-------------------+---------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Projection_11                             | 2.00    | root              |               | test.t.a                                                                                                                                                                 |
| └─Apply_13                                | 2.00    | root              |               | CARTESIAN inner join, other cond:or(and(le(Column#6, 1), and(eq(test.t.a, Column#5), if(ne(Column#7, 0), NULL, 1))), or(eq(Column#8, 0), if(isnull(test.t.a), NULL, 0))) |
|   ├─TableReader_15(Build)                 | 2.00    | root              |               | data:TableFullScan_14                                                                                                                                                    |
|   │ └─TableFullScan_14                    | 2.00    | cop[tiflash]      | table:t       | keep order:false, stats:pseudo                                                                                                                                           |
|   └─TableReader_32(Probe)                 | 1.00    | root              |               | data:ExchangeSender_31                                                                                                                                                   |
|     └─ExchangeSender_31                   | 1.00    | batchCop[tiflash] |               | ExchangeType: PassThrough                                                                                                                                                |
|       └─Projection_27                     | 1.00    | batchCop[tiflash] |               | Column#5, Column#6, Column#7, Column#8                                                                                                                                   |
|         └─HashAgg_28                      | 1.00    | batchCop[tiflash] |               | funcs:firstrow(Column#14)->Column#5, funcs:count(distinct test.t3.a)->Column#6, funcs:sum(Column#15)->Column#7, funcs:sum(Column#16)->Column#8                           |
|           └─ExchangeReceiver_30           | 1.00    | batchCop[tiflash] |               |                                                                                                                                                                          |
|             └─ExchangeSender_29           | 1.00    | batchCop[tiflash] |               | ExchangeType: PassThrough                                                                                                                                                |
|               └─HashAgg_18                | 1.00    | batchCop[tiflash] |               | group by:Column#22, funcs:firstrow(Column#20)->Column#14, funcs:sum(Column#21)->Column#15, funcs:count(1)->Column#16                                                     |
|                 └─Projection_34           | 1.00    | batchCop[tiflash] |               | test.t3.a, cast(isnull(test.t3.a), decimal(20,0) BINARY)->Column#21, test.t3.a                                                                                           |
|                   └─TableRangeScan_26     | 1.00    | batchCop[tiflash] | table:t3      | range: decided by [eq(test.t.a, test.t3.id)], keep order:false, stats:pseudo                                                                                             |
+-------------------------------------------+---------+-------------------+---------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
*/

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

null

3. What did you see instead (Required)

empty result

4. What is your TiDB version? (Required)

master nightly

[SeaRise]

pingcap/tiflash#4071

[SeaRise]

/assign @SeaRise