Removing JSON fields based on patterns

I have a json extractor running and extracting all sorts of fields. Problem is it is doing too good of a job and I hit the 1000 fields error. Is there a way to remove fields based on pattern matches of the fieldname to reduce the amount of fields?

No, but you can remove specific fields in a pipeline rule with the remove_field() function.

I could do that if I knew what the fields were. If I could iterate the fields to make decisions via pattern matching to keep or remove; but, there doesn’t seem to be anything like that.

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