npawar commented on issue #5238: Evaluate schema transform expressions during ingestion URL: https://github.com/apache/incubator-pinot/pull/5238#issuecomment-614216228 > We missed to discuss the pros/cons of using Groovy on the design doc, apologies. One thing to note is that opening the door for executing an external script/code is a security risk. For example, we need to protect against malicious intent such as `System.exit()`, `while (true)`, forced OOM, etc. Some of these can be prevented by using Protected/Priviliged mode in Groovy. But we should consider whether there are easier alternatives that don't require inventing another DSL. Let's continue the discussion on the design doc. We can always remove the Groovy function type if we decide against it. The rest of the changes should remain the same. Regarding Protected/Privileged mode - can you point me to some docs, I can't seem to find what you're referring to.
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