potiuk commented on issue #25144:
URL: https://github.com/apache/airflow/issues/25144#issuecomment-1189886508

   > @potiuk agree that we don't need to decrease it now. my concern is more in 
the future changes. I think we should be more careful when changing the 
database schema, as it has implications for users when upgrading.
   
   Agreee. I think we;ve learned something. Back then when it was changed 
(before me as committer) we become super careful - we have now not only much 
better migrations (including being able to go back and forth), automated 
testing of upgrade and downgrade on CI and very careful reviews of what has 
changeed precisely beceuse we learned from that experience. Collation and index 
length for MySQL was something that gave us a lot fo trouble. 
   
   You are complaining about a change that was implemented ~3 years ago (you 
simply were a bit disconnected since).
   
   Check out those:
   
   * https://github.com/apache/airflow/pull/12591
   * https://github.com/apache/airflow/pull/14535
   * https://github.com/apache/airflow/pull/17603
   * https://github.com/apache/airflow/pull/17603
   * https://github.com/apache/airflow/pull/17729
   * https://github.com/apache/airflow/pull/18072
   * https://github.com/apache/airflow/pull/19268
   
   BTW. Speaking of migratioins. If you want to avoid troubles I heartily 
recomend to move to Postgres. You will not regret it. MySQL is a really bad 
choice you shoulld reconsider at AirBnB. 
    
   
   


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