[GitHub] [shardingsphere] RaigorJiang opened a new pull request, #21892: Optimizing query results for PSQL metadata select.

[GitBox]

RaigorJiang opened a new pull request, #21892:
URL: https://github.com/apache/shardingsphere/pull/21892

   Fixes #21888.
   
   Because the alias of the query column is case-sensitive, it cannot be found 
according to the fixed `name`.
   
   Changes proposed in this pull request:
     -  Change type of `row results` and `alias` from `LinkedHashMap` to 
`TreeMap`
   
   ## In Native Postgres
   <img width="784" alt="image" 
src="https://user-images.githubusercontent.com/5668787/199230425-a78ca423-7697-44e5-8353-cd00e8c78fb6.png";>
   
   ## In Proxy
   ### Before 
   
![image](https://user-images.githubusercontent.com/5668787/199230301-fd6e2ad8-8489-493a-a793-d726203e4f59.png)
   
   ### After
   <img width="716" alt="image" 
src="https://user-images.githubusercontent.com/5668787/199230282-817ccf8e-87e1-486f-bfc3-714220f6c8e3.png";>
   
   ---
   Before committing this PR, I'm sure that I have checked the following 
options:
   - [ ] My code follows the [code of 
conduct](https://shardingsphere.apache.org/community/en/involved/conduct/code/) 
of this project.
   - [ ] I have self-reviewed the commit code.
   - [ ] I have (or in comment I request) added corresponding labels for the 
pull request.
   - [ ] I have passed maven check locally : `mvn clean install -B -T2C 
-DskipTests -Dmaven.javadoc.skip=true -e`.
   - [ ] I have made corresponding changes to the documentation.
   - [ ] I have added corresponding unit tests for my changes.
   


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