I can understand that in some sense it's nonsensical to MAX on a CHAR, since Blink will only determine a CHAR when there's a constant in the SQL, but I was surprised that it didn't work with just an identity implementation.
On Wed, Feb 3, 2021 at 12:33 PM Till Rohrmann <trohrm...@apache.org> wrote: > Thanks for reaching out to the Flink community Yuval. I am pulling in Timo > and Jark who might be able to answer this question. From what I can tell, > it looks a bit like an oversight because VARCHAR is also supported. > > Cheers, > Till > > On Tue, Feb 2, 2021 at 6:12 PM Yuval Itzchakov <yuva...@gmail.com> wrote: > >> Hi, >> I'm trying to use MAX on a field that is statically known from another >> table (let's ignore why for a moment). While running the SQL query, I >> receive an error: >> >> Max with retract aggregate function does not support type: ''CHAR''. >> >> Looking at the code for creating the max function: >> >> [image: image.png] >> >> It does seem like all primitives are supported. Is there a particular >> reason why a CHAR would not be supported? Is this an oversight? >> -- >> Best Regards, >> Yuval Itzchakov. >> > -- Best Regards, Yuval Itzchakov.
