Ingest KV processor and pattern


I'm trying to use the kv processor with patterns. As mentioned in the documentation, the "field_split" can use a regex pattern to use for splitting key-value pairs, but I can't find examples.

I have a working PCRE regex here, tested from
(?!=)([a-zA-Z0-9.:\/ ]*=[a-zA-Z0-9.:\/ _-]*)( |$)

But now how can I use it from the kv processor?

Thanks for your help!

Ok, found it, my regex was wrong, as it need to match the field_split only (not a group):
field_split" : "(?!\\w+=\\S+)\\s(?!\\w+\\s)

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