Thanks Till.

If so, how does Flink share Catalog data between threads?  I didn't find
any synchronized codes in CatalogManager. Does it mean we can only share
catalogs through an external hive meta store?

BR
- Chang


Till Rohrmann <trohrm...@apache.org> 于2022年1月17日周一 17:26写道:

> Hi Chang,
>
> Yes, I think this would make most sense to do.
>
> Cheers,
> Till
>
> On Mon, Jan 17, 2022 at 9:13 AM Chang Chen <baibaic...@gmail.com> wrote:
>
> > IIUC, TableEnvironment isn't thread-safe, since it contains some internal
> > states, for example, PlannerContext that has RelOptCluster used to
> optimize
> > SQL.
> >
> > So do I create a TableEnvironment per thread?
> >
>

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