value of INDEX_LENGTH column is incorrect with global index #54173
Description
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) partition by hash(c) partitions 4;
alter table t add unique index b(b);
insert into t values (1,1,1);
analyze table t;
select * from information_schema.partitions where table_name like 't';
2. What did you expect to see? (Required)
mysql> select partition_name, index_length from information_schema.partitions where table_name like 't';
+----------------+--------------+
| partition_name | index_length |
+----------------+--------------+
| p0 | 0 |
| p1 | 0 |
| p2 | 0 |
| p3 | 0 |
+----------------+--------------+
4 rows in set (0.01 sec)
3. What did you see instead (Required)
mysql> select partition_name, index_length from information_schema.partitions where table_name like 't';
+----------------+--------------+
| partition_name | index_length |
+----------------+--------------+
| p0 | 0 |
| p1 | 8 |
| p2 | 0 |
| p3 | 0 |
+----------------+--------------+
4 rows in set (0.01 sec)