PostgreSQL and Unicode

I ran into this recently and thought I would post it, just in case in helps someone.

In PostgreSQL 8.3, the chr() function accepts a Unicode codepoint. This is useful to insert (or in our case, correct) Unicode strings.

You might think that this feature has been around since... version 6, or 7, or surely 8.2 ?

No. Be careful: the documentation for 8.2 mentions only ASCII.