Wrong timezone conversions for "America/Scoresbysund" about presto

[tdcmeehan]

We typically update Joda, and mention in the release notes that a corresponding upgrade in the Java runtime is required (and also mention how to update that). Here's an example: #21329

[elharo]

It probably depends on which chunk of code is running. There's an outstanding task to move away from Joda to java.time, and interestingly the PR i just sent out to do part of that seems to have uncovered a bug in the JDK.

[pedroerp]

Maintaining backwards compatibility will likely be an interesting challenge as you move away from joda. But regardless, in the short-term it would be nice if we could bump joda's version to align with results we get from the native engine.

[mbasmanova]

cc: @rschlussel @tdcmeehan

[elharo]

We really need to ditch joda time. In 2024 it isn't needed. I think I tried this a couple of years ago, and got blocked on the lack of support or reviews in presto-druid.

[elharo]

Changing joda version changes tzdata which must match deployed JVM tzdata. Do not change this without also making sure it matches

[elharo]

https://www.oracle.com/java/technologies/tzdata-versions.html

I'm not sure how we can match the tzdata since it will be deployed across different JVMs.

[pedroerp]

I'm not sure how we can match the tzdata since it will be deployed across different JVMs.

What is the story there? Is the timezone information got form Joda directly, or from the JVM? Not sure why both would be needed.