Replace special characters in csv header

Elastic Stack Logstash
1

Hello,
I have a csv file with a header row which contains the special characters "[" and "]" in few of the column names. Logstash issues the exception "#<RuntimeError: Invalid FieldReference:" while attempting to parse it. Is there anyway to overcome this through logstash?

Any help would be much appreciated!
Thanks!

2

I was able to resolve this with the mutate - gsub filter.
In my first attempt, I placed the mutate filter after the csv filter and it did not work.
I changed the order now and it works like a charm!

3

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