use wildcard/regex for field selection

[dadoonet]

Let's say I want to mutate / uppercase a list of fields like: is_a, is_b, is_c, is_d:

I need to define today:

  mutate {
    uppercase => [ "is_a", "is_b", "is_c", "is_d" ]
  }

Would be nice if we can use wildcard instead:

  mutate {
    uppercase => [ "is_*" ]
  }

[jordansissel]

I have deleted all the "+1" comments. Commenting creates email for everyone subscribed, and honestly I am already drowning in email, and these "+1" comments are not useful to us.

At the time of deletion, there were 10 "+1" comments.