Problem with Ruby Filter

Elastic Stack Logstash
5

Amazing ptamba, Thank you

I use filter json and It almost work

The problem is related with the field target_ips because it is a dictionary and when I use filter json my Elastic exceed the number 1000 fields like this:
target_ips.172.0.0.0
target_ips.172.0.0.1
target_ips.172.0.0.2
etc

I tried to remove it with the filter mutate
mutate {
remove_field => [ "[parser_result][target_ips]" ]

But it doesn't work because field target_ips is dynamic , is possible to help me ?

Thank you again