mayankshriv commented on issue #5238: Evaluate schema transform expressions during ingestion URL: https://github.com/apache/incubator-pinot/pull/5238#issuecomment-613545567 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.
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