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Trino has had a columnar/vectorized evaluation engine since its inception in 2012. After the initial implementation and optimization, and once we were satisfied with the performance for the majority o…
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The new `effect` syntax #12309 saves lots of boilerplate, but if we wish to go in this direction (instead of waiting for an effect system), I think we can do more for a common case where the effect ha…
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## Environment
* **IntelliJ Rust plugin version:** 0.4.184.5057-223
* **Rust toolchain version:** 1.67.0-nightly (234151769 2022-12-03) x86_64-unknown-linux-gnu
* **IDE name and version:** CL…
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**Question**
最近在学习ob向量化执行框架的实现，有个细节不太明白。
`src/sql/code_generator/ob_static_engine_expr_cg.cpp`这个源文件中，有这样一个函数：
```cpp
// 1. 将所有raw exprs展开
// cg: c1 + 1, c1 + c2 ==> c1, 1, c1 + 1, c2, c1 + c…
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Today if you try to call the mixer without specifying all of the attributes required to satisfy all expression evaluated at runtime the call will fail. This is because we return errors when we evaluat…
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````cpp
bool fun(){
int a = 0, b, c = 0;
b = ++a;
return c = a++;
}
bool r = !fun();
````
The current wording does not seem to specify the value computation of the function call expres…
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## Reproduction steps
```scala
➜ ~ skala -Xsource:3
Welcome to Scala 2.13.9-20220720-072233-0771b75 (OpenJDK 64-Bit Server VM, Java 18.0.1.1).
Type in expressions for evaluation. Or try :help.
…
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In no real order of priority:
- [x] Use best practice optimizations
- [x] Implement a basic UI for entering expressions and seeing the results
- [x] Evaluate a few editors to use for text input
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Hello,
I'm using notepad++ v8.2.1 64-bit and XML Tools 3.1.1.10 on Windows 10 Pro 20H2.
There are a couple of issues connected to XPath Expression Evaluation.
First issue is functional one, w…
zKlan updated
2 years ago
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The evaluation of predicates like "x=3" inside the interpret method change the value_stack of a bstate. This is a artifact when pyB was only a stateless predicate checker. Now these side-effects need …