"sql result windows size adjust" question.

This is a question about the content you answered earlier.(refer1 link)

1. Why is unnecessary space needed in a single query? 
   I don't understand why they made it that way.
   And also see what was requested days ago(refer2 link), it was a single query. 

2. when does the improvement of eliminating wasted space for a single query take effect?

refer1. link1
https://intellij-support.jetbrains.com/hc/en-us/community/posts/10023138278674-The-function-sql-result-windows-size-adjust-did-not-take-effect-

refer2. link
https://intellij-support.jetbrains.com/hc/en-us/community/posts/9083477154194-sql-result-windows-size-adjust