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

From: Vik Fearing <vik(at)postgresfriends(dot)org>
To: jian he <jian(dot)universality(at)gmail(dot)com>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com>
Cc: Isaac Morland <isaac(dot)morland(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: CAST(... ON DEFAULT) - WIP build on top of Error-Safe User Functions
Date: 2025-07-22 06:45:15
Message-ID: 04afcd1f-ed7d-4c0a-add1-50e3719ccbf9@postgresfriends.org
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On 22/07/2025 03:59, jian he wrote:
> Based on my reading of [4], it seems CAST(EXPRESSION AS TYPE DEFAULT
> def_expr ON ERROR)
> is not included in SQL:2023.
>
> [4]https://peter.eisentraut.org/blog/2023/04/04/sql-2023-is-finished-here-is-whats-new

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.

--

Vik Fearing

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