Runji Wang
Runji Wang
I still prefer auto-vectorization over explicit SIMD, because usually compilers do it better than humans and it makes code cleaner. However, as mentioned above, auto-vectorization requires special craft of codes....
Hi @xiaguan , thanks for your interest! The reason for the "skewed" tree in RisingLight is that: 1. The binder generates a left-deep tree of join nodes in the execution...
For the first issue, yes, we should provide row number information from storage to the optimizer. Currently, row number statistics are available in disk storage but not in memory storage....
> I was working on some WASM-related things recently I would prefer compiling it using wasm-pack so that it can run in the browser. Just curious about what it is?...
cc @equation314
Thanks for sharing your idea! Besides checking for determinism, we also want to locate the source as soon as possible when uncertainty occurs. Therefore, `check_determinism` records the entire sequence of...
我之前是参考 [Rust Book](https://github.com/rust-lang/book) 的方式来写的：代码和文档放在一起方便直接引用。但还没想清楚各个版本的代码该如何组织，可能是以章为单位，把整章完成后的代码放在一个文件夹中。 > 我觉得 blog_os 的写作方式值得借鉴： > 1. 每篇文章放在一个分支上，代码需要更新时只需要更新相应分支; > 2. 临时代码直接写在文章里，确定不需要改变的代码引用相应分支中的代码。 我觉得这样可以，但 mdbook 是否可以引用其它分支的代码？
OK，可以试试！
> @chyyuu > 可以有一道小题目，kernel截获除零异常。 RISC-V 中除零不会触发异常，可以改为截获非法指令异常（例如 `mret`）
The PR of UDAF https://github.com/risingwavelabs/risingwave/pull/16874 has just merged in RisingWave. I'm currently drafting the documentation for it. It's worth to mention that: that PR implements the traditional "stateful" aggregate function...