The last piece of my setup was how to encode the tax formulas and provide them to the WASM module.
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
，这一点在PDF资料中也有详细论述
于是我决定做一个更完整的横向测评，核心目的只有一个：帮打工人找到一款真正「能用」的日常 PPT 神器。
When we flatMap over this new monad, it's closure will take a Tuple2[V,W],
SQS, however, throws a wrench in the works. I was initially very surprised by the paper’s description of SQS (the 2008 version). It said that a queue might hold 200 messages, but a client requesting 100 could randomly receive only 20. This is because, to provide low latency, SQS does a best-effort poll of a subset of its distributed servers and immediately returns whatever it finds. But don’t worry, the other messages aren’t lost. They sit on servers not checked in that round. But the price of this low-latency is that FIFO ordering isn’t guaranteed. The database handles this mess by making log records idempotent, and ensures that out-of-order or duplicate processing never corrupts data.