Re: char 0x00
От | Brett Okken |
---|---|
Тема | Re: char 0x00 |
Дата | |
Msg-id | CANBJVOH+SL8d7D4buSOv9=H18KLCQf2r1GC7bfUnwC4NGgF6_Q@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: char 0x00 (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: char 0x00
|
Список | pgsql-docs |
Using a client and server encoding of SQL_ASCII makes it possible to get 0x00 into a text value column when using a bind variable.
Thanks,
Brett
On Thu, Mar 26, 2020 at 9:22 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
Brett Okken <brett.okken.os@gmail.com> writes:
> It might also be helpful to state in the opening paragraph about character
> set support that the NUL character is not supported in any character set
> (except SQL_ASCII).
Uh, it's not supported *anywhere*, period. If you managed to get the
server to accept a text string with an embedded NUL, I'd like to know
how exactly, because that's a missed validation.
As far as documentation goes, I'd be inclined to address the point
in the page about string data types,
https://www.postgresql.org/docs/current/datatype-character.html
with text along the lines of "The contents of a string value must be
validly encoded according to the database's encoding, and cannot include
the character with code zero". I'd sort of thought we said that there
already, but I don't see it.
regards, tom lane
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