jt2594838 opened a new pull request, #16606:
URL: https://github.com/apache/iotdb/pull/16606

   When repeatedly querying a timeseries that is not in a TsFile and the 
bloomfilter fails to filter it, each query will result in a necessary IO.
   
   Since TsFile is immutable, we can cache a placeholder to indicate the 
non-existence.


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