title: Hive external table - Not giving correct count after replacing the underlying data file with a new file containing different number of records
body: <p>It is noticed that <code>count(*)</code> does not give the updated count, after replacing the already existing data file, with a new file containing different number of records, in the HDFS location of the external table.</p>
  
  <p>Is there a way to refresh this value? Or, will it get automatically refreshed after a configurable time duration?</p>