Hello @Saravanan Ramaraj In response to an earlier question I would say "yes" to converting your JSON log data to ORC if the logs are not complex data structures which can vary. unlike @Bala Vignesh N V I have had positive experiences comparing an ORC file of > 1 billion rows with it's equivalent RDBMS (Teradata) version. ORC's reponse of 20-30 seconds was judged to be "competitive" LLAP would make this even better. I'm a big fan of ORC. ... View more