Languages

1. Rust
   • Generic Asoociated Types 如何理解 async traits 及更为基础的 GAT？
   • Polonius: Rust's new borrow checking
     • Pros: more precise, fewer false errors, ability to accept more safe code, groundwork for self-borrows.
     • Cons: more complex analysis, potentially more memory and CPU overhead, risk of regressions for big codebases
   • Polonius Book
2. Zig
   • Zig 0.15.2 Released 据说又是一个破坏性的版本。

Mpp & OLAP

1. DataFusion 有一段时间没有跟进 DataFusion 的新特性了。
   • 48.0.0
     • performance: fewer unnecessary projections
     • performance: Accelerated string functions(ascii, character_length)
     • performance: Constant aggregate window expressions
     • grammar: order by all
   • 49.0.0
     • performance: dynamic filters and topK pushdown
     • async UDF
   • 50.0.0
     • performance: dynamic filter pushdown improvements(for hash joins)
     • performance: nested loop join optimization
     • parquet metadata caching
     • grammar: support qualify stmt
     • grammar: filter support for window functions

Web & Frontend

AI & Agent

• graphflow: multi agent flow 正好最近我们也设计了一个基于 flow 的多 agent 框架，再看看这篇文章，感觉这个设计还是太粗糙了些。

Misc