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. >