Re: [PoC] XMLCast (SQL/XML X025)
| От | Marcos Pegoraro |
|---|---|
| Тема | Re: [PoC] XMLCast (SQL/XML X025) |
| Дата | |
| Msg-id | CAB-JLwZQcOKx086-kQEyxgjjVZhtjuZo4=2XqWr3_fCkYrAxFA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: [PoC] XMLCast (SQL/XML X025) (Jim Jones <jim.jones@uni-muenster.de>) |
| Ответы |
Re: [PoC] XMLCast (SQL/XML X025)
|
| Список | pgsql-hackers |
Em sáb., 29 de nov. de 2025 às 09:38, Jim Jones <jim.jones@uni-muenster.de> escreveu:
Perhaps listing the data types would make things easier to understand?
Something like:
* Casting is supported between xml and the built-in character
(character, character varying, or text), numeric, boolean, binary, and
date/time types. The date/time types (date, time with time zone,
timestamp with time zone, and interval) are converted to their
corresponding XML Schema types: xs:date, xs:time, xs:dateTime, and
xs:duration.
If we link to them, then the user will not have any doubts of what datatypes we work
+ It supports casting between <type>xml</type> and <link linkend="datatype-character-table">character</link>, <link linkend="datatype-numeric">numeric</link>, <link linkend="datatype-datetime">date/time</link>, <link linkend="datatype-boolean">boolean</link> and <link linkend="datatype-binary">binary</link> data types.
If the user gets a "ERROR: unsupported target data type for XMLCast"
using a domain (being an alias for a base type or not) and the
documentation clearly lists the supported types, wouldn't that be
enough? If not, do you have anything in mind that we could add to the docs?
I think being explicit in the previous paragraph then is fine to not mention domains.
regards
Marcos
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