Erik Wienhold <ewie@ewie.name> writes:
> On 2024-11-19 17:47 +0100, Tom Lane wrote:
>> I thought we documented somewhere that built-in functions are strict
>> unless explicitly stated otherwise ... but I sure can't find that
>> statement right now.
> Perhaps this one?:
>> (Most internal functions expect to be declared “strict”.)
>> https://www.postgresql.org/docs/current/xfunc-internal.html
I did see that one, but it's not exactly in an obvious-to-novices
place.
David was working on a new docs section that would talk more about
SQL NULLs in general. Maybe that would be a reasonable place?
An alternative could be somewhere early in func.sgml, but that chapter
doesn't really have anything I would call an overview section.
regards, tom lane
