Michael Zhang

## Bug Report Please answer these questions before submitting your issue. Thanks! 1. What did you do? ``` $ tiup dumpling -o tmp -uroot -ptidb -Btest -F256Mib Checking updates for...

SHOW COLLATION format does not compatible with mysql 8.0

7

## Bug Report ### 1. Minimal reproduce step (Required) ``` mysql> SHOW COLLATION WHERE `Charset` = 'utf8mb4' AND `Default` = 'Yes'; +-------------+---------+------+---------+----------+---------+ | Collation | Charset | Id | Default...

optimizer access table unnecessarily

1

## Bug Report ### 1. Minimal reproduce step (Required) ```sql CREATE TABLE tb ( object_id bigint(20), a bigint(20) , b bigint(20) , c bigint(20) , PRIMARY KEY (object_id), KEY ab...

## Bug Report ### 1. Minimal reproduce step (Required) Production system running normal ### 2. What did you expect to see? (Required) No spike of any issue ### 3. What...

DM to read password from environment

1

### Is your feature request related to a problem? ight now, dm requires storing password in config file: ```yaml ## ******** Downstream TiDB instance configuration ********** target-database: # Configuration of...

### Is your feature request related to a problem? In dm-worker log, there are 3 binlog positions: ```log [2024/07/18 15:33:13.682 +00:00] [INFO] [status.go:149] ["binlog replication status"] [task=mysql1] [unit="binlog replication"] [total_rows=17322636]...

tiup leaks credential through environment printing

1

## Bug Report 1. What did you do? any `tiup cluster` command, e.g. ```shell tiup cluster list ``` 2. What did you expect to see? The command should be safe...