Francis

## TASK2 [面试必备-vector](https://github.com/gcc-mirror/gcc/blob/releases/gcc-9/libstdc%2B%2B-v3/include/bits/stl_vector.h) 时间：一天 ## 通过标准 请提交对vector学习的笔记、以及测试文件，可以是单元测试 or main函数测试，截图贴到pr上，pr通过并获得LGTM，视为通关!

## TASK1 [小试牛刀-list](https://github.com/gcc-mirror/gcc/blob/releases/gcc-9/libstdc%2B%2B-v3/include/bits/stl_list.h) 时间：一天 ## 通过标准 请提交对list学习的笔记、以及测试文件，可以是单元测试 or main函数测试，截图贴到pr上，pr通过并获得LGTM，视为通关!

Send rows in binary mode for ANALYZE

1

fix #569 --- ### Change logs Send results of select pg_catalog.gp_acquire_sample_rows query in binary mode. That allows to avoid overflow for max double. For example, if run the following prior...

### Cloudberry Database version master ### What happened set extra_float_digits to 0; create table t (a double precision); insert into t values (1.7976931348623157e+308); analyze t; the following message will be...

[Enhancement] use std::visit to replace std::get_if

16

get_if is not very readable, we can use visit instead issue: https://github.com/zilliztech/knowhere/issues/630

Fix: use std::visit to replace std::get_if

5

The destructor of dataset is not well written to release memory. We can use visit to simplify the code. before: ``` { auto ptr = std::get_if(&x.second); if (ptr != nullptr)...