How do you convert the field type in CloudWatch?

Question

The @timestamp field for example, while a long, is always displayed as a date. Can I convert/display it as a long/int?

Answer 1

There is a toMillis function:

Converts the timestamp found in the named field into a number representing the milliseconds since the Unix epoch.

https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/CWL_QuerySyntax.html