Hi Henry,
the DATE_FORMAT function is in a very bad state right now. I would
recommend to implement your own custom function right now.
This issue is tracked here:
https://issues.apache.org/jira/browse/FLINK-10032
Regards,
Timo
Am 31.10.18 um 07:44 schrieb 徐涛:
Hi Experts,
I found that DA
Hi Experts,
I found that DATE_FORMAT(timestamp,format) returns a TIMESTAMP type, it
is wired, because normally format result should be a string type.
In document it says “Formats timestamp as a string using a specified
format string”. But when I run it in Flink SQL,
selec
