IndexLookup Join can't find column with virtual generated column

[wjhuang2016]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

mysql> create table t(a int, b json, c int AS (JSON_EXTRACT(b, '$.population')), key(c));
Query OK, 0 rows affected (0.01 sec)
mysql> desc select /*+ TIDB_INLJ(t2) */ t1.a, t1.c, t2.a from t t1, t t2 where t1.c=t2.c;
ERROR 1105 (HY000): Can't find column test.t.b in schema Column: [test.t.a,test.t.c] Unique key: []

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

No error

3. What did you see instead (Required)

error

4. Affected version (Required)

master, 4.0

5. Root Cause Analysis