yi wang

感谢回复。 之前没有描述清楚，在一台机器有多个实例，这多个实例会想其它机器上面的多个实例频繁发送消息，我想要把一段时间内发往相同机器rpc请求合并起来在同一个时间发送以减小网络负担，  像这个把a，b的请求合成c，然后c一段时间后发给d，再由d下发给下面的服务e，f，最后实现a向e发送rpc，b向f发送rpc。 原先a，b，e，f对rpc的处理涉及许多需要controller处理的地方，最后也需要调用closure->Done()，不知道要怎么处理这两个的合并。

> In KCL, we have build a structure similar to the symbol table and we call it `scope`. You can find it in `kclvm/sema/src/resolver/scope.rs`. It records most of the information...

I have read the CLA Document and I hereby sign the CLA

已经很好用了，感谢🥰

I am interested in this ticket. Since it is a pretty major project, I will write a proposal first.

> So, if i'm not mistaken, this issue is mostly about covering NLJoin in [join_selection.rs](https://github.com/apache/arrow-datafusion/blob/abb0c1f62bf622bd0e40769560cf0804dac2ecbf/datafusion/core/src/physical_optimizer/join_selection.rs). > I think it is a good idea to improve performance in this scenario. Your...

After using async_fn_in_traits, will we be able to provide msrv?

I met same problem, and currently master only support jvm17(env.sh), I don't know how to switch to JDK8. ``` echo "The 'JDK_17' environment variable is not set." echo "ERROR: The...

I'd like to try hll_empty. Thanks.

``` Comparing main and hashjoin-project-pushdown -------------------- Benchmark tpch.json -------------------- ┏━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓ ┃ Query ┃ main ┃ hashjoin-project-pushdown ┃ Change ┃ ┡━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩ │ QQuery 1 │ 466.19ms │ 467.21ms │ no change...