Hello everyone, we have recently had an issue for a change in Avatica which was not working for all timezones that almost slipped through (see CALCITE-4600 <https://issues.apache.org/jira/browse/CALCITE-4600>) if it was not for a local run which happened to be in a different timezone.
As for Calcite, also Avatica has code paths which are susceptible to depend on the local user timezone (notably the time-related data types), in the current state CI won't necessarily catch misbehaviour related to that. I think it would be worth adding at least an additional CI check using a US/Asia timezone. Avatica tests are quick to run, so I don't think it would be a big issue. What do you think? Best regards, Alessandro
