Zhenglong Li

Nice catch! Since `gp_toolkit.gp_disk_free` is a EXTERNAL TABLE that uses a python script to fetch information about the disk used: ``` from gppylib.commands import unix df = unix.DiskFree.get_disk_free_info_local('token','$GP_SEG_DATADIR') print('%s, %s,...

Is there anything changed about your desk? Since checksum mismatching only could happen at desk damage.

找到了个解决方法，使用 Windows 下最新版本企业微信（3.0.30）的安装目录（`WXWork/`）替换掉 `~/.deepinwine/Deepin-WXWork/drive_c/Program Files/WXWork/` ，重启企业微信即可，替换前做好原有 WXWork 目录的备份。

图片是在 draw.io 这个在线绘图网站上做的，字体使用的是 Comic Sans MS。原图是在 MacOS 上绘制的，不过在 Ubuntu 和 Windows 操作系统下样式会有所差别。

@yuhui-xie 概述部分写了一版，但是感觉写的不顺畅，也就暂时搁置了。所以估计会把后面的内容搞完了之后再回头来写概述部分的内容。

你说的 10 转 62 是指 `leveldb_debug.cc` 文件中的 `decimalTo62()` 函数吗? 如果是的话，这个函数的作用就是将一个 10 进制的长整型转换成 62 进制编码的字符串，可以用在生成短链接字符串上，当时应该是为了方便随便找了个 demo 函数，可以参考 [如何设计一个 Tiny URL 系统?](https://github.com/SmartKeyerror/Snorlax/tree/master/system-design/tiny-url#23-%E8%BF%9B%E5%88%B6%E8%BD%AC%E6%8D%A2-base62) Slice 的话，我觉得可能就是为了方便，用一个简单的实现来满足 leveldb 需要的所有功能，另一个原因也可能是因为拷贝 Slice 的开销更小。

@InnerLife0 Hi~ Before I start to review this PR, I run a simple isolation2 test, and find there has many failed tests, doesn't look like a flaky case (means your...

@InnerLife0 Hi, the latest commit still failed in the same cases. ``` SELECT is_session_in_group(pid, 'rg_move_query') FROM pg_stat_activity WHERE query LIKE '%pg_sleep%' AND state = 'idle in transaction'; is_session_in_group --------------------- -...

> Can you please tell more about your test environment? I run it in our team's private pipeline, it's a little complicated, so I don't know the exact environment... But...

> How can we explain that `pg_sleep` returns only 2 rows? Is it possible to gather server logs to have a chance to debug `true/false` test? We can't reproduce the...