Re: Custom type's modifiers
| От | David G. Johnston |
|---|---|
| Тема | Re: Custom type's modifiers |
| Дата | |
| Msg-id | CAKFQuwZnhZPQgbL687qeT5sC3kjWJ4r9QQwqB1nU5xtLbOj=HQ@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Custom type's modifiers (Marthin Laubscher <postgres@lobeshare.co.za>) |
| Ответы |
Re: Custom type's modifiers
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| Список | pgsql-hackers |
On Thu, Jun 27, 2024 at 8:49 AM Marthin Laubscher <postgres@lobeshare.co.za> wrote:
I suppose when a cast is involved it goes via the external format as well, right?
A cast between two types is going to accept a concrete instance of the input type, in memory, as its argument and then produces a concrete instance of the output type, in memory, as output. If the input data is serialized the constructor for the input type will handle deserialization.
See: create cast
In particular the phrasing: identical to or binary-coercible to
David J.
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