Kould

after importing LLVM IR, a segmentation fault occurs when calling its internal method

2

**Describe the Bug** after importing LLVM IR, a segmentation fault occurs when calling its internal method **To Reproduce** sum.rs ```rust #[no_mangle] fn hello() { println!("hello world"); } fn main() {}...

feat: support `ALTER TABLE ... ALTER COLUMN ... TYPE ...`

9

I hereby agree to the terms of the [GreptimeDB CLA](https://github.com/GreptimeTeam/.github/blob/main/CLA.md). ## Refer to a related PR or issue link (optional) https://github.com/GreptimeTeam/greptimedb/issues/3517 https://github.com/GreptimeTeam/greptime-proto/pull/149 ## What's changed and what's your intention? Support:...

`free(): invalid size` will occur after Insert reaches 20000 times

1

#### What happens?  #### To Reproduce ``` SizeT thread_num = 1; SizeT total_times = 2 * 10 * 1000; ```  #### Environment (please complete the following information): -...

## Bug Report Repeatedly inserting a small amount of data and then closing it will cause too many sstables(The sstable that should be at level 0 is deleted.) 

## Feature Request 

## Bug Report **What did you see instead?** After the database service is restarted abnormally, the SSTable generated in the previous operation will not be cleaned up

## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** Need to be able to clean up disk and memory data methods,...

目前使用clap作为简单的测试客户端，若是能支持命令式则是极好的

根据LSMStore的各个组件原理编写相应描述文档 - VersionEdit快照 - WAL - 迭代器

## Feature Request >TODO: When the case is select * from t1 where (c1 = 7 or c1 = 10) and c2 < 2;, the range is (-inf, (10, 2)),...