Re: [HACKERS] UTF8 or Unicode

Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
>> The correct encoding name is "UTF-8".

> True, but Peter says the ANSI standard calls it UTF8 so that's what I
> used.

What SQL99 actually says is

- UTF8 specifies the name of a character repertoire that consists
of every character represented by The Unicode Standard Version
2.0 and by ISO/IEC 10646 UTF-8, where each character is encoded
using the UTF-8 encoding, occupying from 1 (one) through 6
octets.

That is, "UTF8" is an identifier chosen to refer to an encoding which
they know perfectly well is really called UTF-8. We should probably
follow the same convention of using UTF8 in code identifiers and UTF-8
in documentation. In particular, UTF_8 with an underscore is sanctioned
by nobody and should be avoided.

regards, tom lane