Maybe not in the first version but eventually nothing in the design blocks us for supporting this. The SecretStore would need to be available in the FunctionDefinitionFactory for this.

Cheers,
Timo

On 29.07.25 15:08, Ryan van Huuksloot wrote:
Overall the FLIP looks good to me.

Would the properties support the SecretStore proposed in FLIP-529?

Otherwise, +1, thanks!

Ryan van Huuksloot
Staff Engineer, Infrastructure | Streaming Platform
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On Tue, Jul 29, 2025 at 4:19 AM Jacky Lau <liuyong...@gmail.com> wrote:

Thanks for initiating this!

+1 for this proposal.

Sergey Nuyanzin <snuyan...@gmail.com> 于2025年7月29日周二 15:34写道:

Thanks for driving this Dawid.

looks reasonable to me

On Mon, Jul 28, 2025 at 5:03 PM Ramin Gharib <ramingha...@gmail.com>
wrote:

Hello Dawid,

Thanks for initiating this! The FLIP looks well-written.
The WITH clause brings consistency to existing syntax.

+1 for this proposal.

On Mon, Jul 28, 2025 at 3:33 PM Dawid Wysakowicz <
dwysakow...@apache.org

wrote:

Hi,
I'd like to start a discussion of FLIP-539: Support WITH Clause in
CREATE
FUNCTION Statement in Flink SQL [1].

The existing CREATE FUNCTION  statement in Flink SQL allows users to
register user-defined functions (UDFs) by specifying the class name
and the
artifact (JAR) containing the implementation. While this design
covers
common use cases, it lacks a declarative mechanism for associating
arbitrary properties or metadata with the function at creation time.

Other Flink SQL objects—such as tables—support a WITH  clause for
specifying options in a key-value fashion, improving consistency,
discoverability, and extensibility.
Looking forward to comments and suggestions for improvements!

Best,
Dawid

[1] https://cwiki.apache.org/confluence/x/sg9JFg




--
Best regards,
Sergey




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