FrederikP edited a comment on issue #3500: NIFI-6322: Reuse evaluator stored in CompiledExpression when creating a query. URL: https://github.com/apache/nifi/pull/3500#issuecomment-496962921 > Did you ever get an answer as to _why_ it works like it does to start with? No I didn't. I just thought it might be a good idea to clarify my initial report with a pull request. Especially since I had to get to know the code anyway to even open the ticket and describe the issue as best as I could. Last time I found a performance issue in NiFi it helped to include a possible fix via pull request. Do you know why it works like that or why do you ask? Edit: If I had to naively guess: I'd say this was an oversight. For me the current behaviour of re-building the evaluator from the tree for every iteration just doesn't make sense. But I'd be intrigued to find out if it is intended and why.
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