Gotcha. Thanks for a quick response.

сб, 25 жовт. 2025 р., 03:43 користувач Evgenij Ryazanov <[email protected]>
пише:

> Hi!
>
> You can't use H2 to check whether your SQL is valid for other database
> system.
>
> The SQL Standard has optional feature T301, “Functional dependencies”. H2
> supports this feature (with minor limitations) and such support cannot be
> disabled.
>
> Database systems with this feature allow neither aggregated nor grouped
> columns as long as their values aren't distinct between all rows within
> every group. That means the same query will fail or not depending on actual
> data.
>
> It isn't related to your question, but if you use H2 in unit tests with
> Spring Boot, you also need to disable automatic configuration of testing
> databases, otherwise your custom JDBC URL with compatibility mode and other
> settings will be ignored.
>
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> .
>

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