log truncate: delete the data by mistake

[Leavrth]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1. prepare 2 meta

meta1:

{
    "file_groups": [
        {
            "path": "v1/20221031/06/18/schema-meta/437045466125041735-ce0e9757-14c4-484d-a42a-1cc742338363.log",
            "data_files_info": [
                {
                    "sha256": "l+01PuAHw7Hc4Pc4dzgNQFpKwBSwkpwLT8ta2hEjP10=",
                    "number_of_entries": 7,
                    "min_ts": 433344455566677711,
                    "max_ts": 433344455566677722,
                    "resolved_ts": 433344455566677711,
                    "region_id": 37,
                    "start_key": "bURCOjM0Nzj/AP4AAAAAAAD/AGhUSUQ6MzX/MTX/AAAAAAD/AAAA9wAAAAD7+e9NchOj/uk=",
                    "end_key": "bURCOjM0Nzj/AP4AAAAAAAD/AGhUSUQ6NjL/Njj/AAAAAAD/AAAA9wAAAAD7+e9Ncm13//k=",
                    "cf": "default",
                    "type": 1,
                    "is_meta": true,
                    "length": 568,
                    "min_begin_ts_in_default_cf": 0,
                    "range_length": 253,
                    "compression_type": 3
                }
            ],
            "min_ts": 433344455566677711,
            "max_ts": 433344455566677722,
            "min_resolved_ts": 433344455566677711,
            "length": 253
        }
    ],
    "store_id": 18,
    "resolved_ts": 433344455566677711,
    "max_ts": 433344455566677722,
    "min_ts": 433344455566677711,
    "meta_version": 1
}

meta2:

{
    "file_groups": [
        {
            "path": "v1/20221031/06/18/schema-meta/437045466125041735-ce0e9757-14c4-484d-a42a-1cc742338363.log",
            "data_files_info": [
                {
                    "sha256": "l+01PuAHw7Hc4Pc4dzgNQFpKwBSwkpwLT8ta2hEjP10=",
                    "number_of_entries": 7,
                    "min_ts": 433344455566677733,
                    "max_ts": 433344455566677744,
                    "resolved_ts": 433344455566677733,
                    "region_id": 37,
                    "start_key": "bURCOjM0Nzj/AP4AAAAAAAD/AGhUSUQ6MzX/MTX/AAAAAAD/AAAA9wAAAAD7+e9NchOj/uk=",
                    "end_key": "bURCOjM0Nzj/AP4AAAAAAAD/AGhUSUQ6NjL/Njj/AAAAAAD/AAAA9wAAAAD7+e9Ncm13//k=",
                    "cf": "write",
                    "type": 1,
                    "is_meta": true,
                    "length": 568,
                    "min_begin_ts_in_default_cf": 433344455566677711,
                    "range_length": 253,
                    "compression_type": 3
                }
            ],
            "min_ts": 433344455566677733,
            "max_ts": 433344455566677744,
            "min_resolved_ts": 433344455566677733,
            "length": 253
        }
    ],
    "store_id": 18,
    "resolved_ts": 433344455566677733,
    "max_ts": 433344455566677744,
    "min_ts": 433344455566677733,
    "meta_version": 1
}

2. run the truncate

br log truncate -s "..." --until "433344455566677730"

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

output should be this:

Detail BR log in /tmo/br.log.....
Reading Metadata... DONE { take = 5ms }
We are going to remove 0 files, until ...
Sure? (y/N)

3. What did you see instead (Required)

output is this:

Detail BR log in /tmo/br.log.....
Reading Metadata... DONE { take = 5ms }
We are going to remove 1 files, until ...
Sure? (y/N)

4. What is your TiDB version? (Required)

master