如何在 Flink SQL Client 中切换到时间戳解析

Question

I want my Flink SQL Client to read data from Kafka
and the data produced by kafka is Timestamp style,
but the default Flink SQL Client Parse is DateTime style,

How to force Flink SQL to switch to Timestamp style?

Thanks for your help~!

my.yaml file is here

Answer 1

I think, the transformation are looking for is TO_TIMESTAMP(FROM_UNIXTIME(<your column>) eg like this

CREATE TABLE your table (
  unix_ts STRING, --your original column
  ts AS TO_TIMESTAMP(FROM_UNIXTIME(unix_ts))
) WITH (
  ...
)

Some more examples for time/data handling can be found eg in https://github.com/ververica/flink-sql-cookbook/blob/master/recipes/12/12_date_time.md .