alibaba / alibaba/DataX

hive2mysql 问题

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Dominant language
Java
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Description

![image](https://user-images.githubusercontent.com/9344541/103119107-dd891580-46ac-11eb-9f60-4216c83b3ac3.png)

这里用HashSet目的是去重吗,可以换做list吗,因为在多对多的时候需要对集合排序

Contributor guide

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Research direction

Start by locating the hive2mysql implementation referenced by the screenshot and inspect where HashSet is used for collection values. Determine whether deduplication is required and how many-to-many results are expected to be ordered. Done means the collection behavior and ordering requirement are clearly resolved and covered by the relevant validation.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, mysql
Domain
databases
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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