Re: Making TEXT NUL-transparent

* Alexander Shulgin:

>> It's actually UTF-8 text, and some PostgreSQL functions are only
>> available for TEXT, but not BYTEA, e.g.:
>>
>> bfk_int=> SELECT '\x006500'::bytea ~ 'A';
>> ERROR:  operator does not exist: bytea ~ unknown
>
> And how will those TEXT functions behave on a value with an embedded
> NUL?

They need to be audited and fixed if necessary.  I'm not saying that
this would be a trivial change.

> Or is it not only about being able to *store* NULs in a text field?

No, the entire core should be NUL-transparent.

By the way, I refuse the notion that UTF-8 strings with embedded NULs
are "broken".  I can't recall any other system which enforces UTF-8
well-formedness, but does not permit embedded NULs.

--
Florian Weimer                <fweimer@bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
Kriegsstraße 100              tel: +49-721-96201-1
D-76133 Karlsruhe             fax: +49-721-96201-99