Re: CAST(... ON DEFAULT) - WIP build on top of Error-Safe User Functions

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От jian he
Тема Re: CAST(... ON DEFAULT) - WIP build on top of Error-Safe User Functions
Дата
Msg-id CACJufxGRAnwJzu7nMq4ZP=yqa1Sz=qR+mR1TmY0aCDjJoJRRtg@mail.gmail.com
обсуждение исходный текст
Ответ на Re: CAST(... ON DEFAULT) - WIP build on top of Error-Safe User Functions  (Vik Fearing <vik@postgresfriends.org>)
Ответы Re: CAST(... ON DEFAULT) - WIP build on top of Error-Safe User Functions
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On Tue, Jul 22, 2025 at 2:45 PM Vik Fearing <vik@postgresfriends.org> wrote:
>
> It was accepted into the standard after 2023 was released.  I am the
> author of this change in the standard, so feel free to ask me anything
> you're unsure about.
>

is the generally syntax as mentioned in this thread:
CAST(source_expression AS target_type DEFAULT default_expression ON ERROR)

if so, what's the restriction of default_expression?

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