Anton Kedin commented on BEAM-3581:

We're on Calcite 1.15 now, created the Jira to put the settings into the 
properties file instead of build.gradle: 

> [SQL] Support for Non-ASCII chars is flaky
> ------------------------------------------
>                 Key: BEAM-3581
>                 URL: https://issues.apache.org/jira/browse/BEAM-3581
>             Project: Beam
>          Issue Type: Bug
>          Components: dsl-sql
>            Reporter: Anton Kedin
>            Assignee: Anton Kedin
>            Priority: Major
>          Time Spent: 50m
>  Remaining Estimate: 0h
> Beam SQL overrides default charset that Calcite uses and sets it to UTF16. It 
> is done via system properties.
> Problem is that we do this only when it hasn't been set yet. So if system 
> property has been set to ISO-8859-1 (Calcite's default), then test runs will 
> fail when trying to encode characters not supported in that encoding.
> Solution:
>  - because it's a system property, we don't want to force override it;
>  - for the same reason we cannot set it for a specific query execution;
>  - we can expose a static method on BeamSql to override these properties if 
> explicitly requested;
>  - affected tests will explicitly override it;
>  - otherwise behavior will stay unchanged and we will respect defaults and 
> user settings;

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