What is the baseline for your comparison? FYI, the community status is like the following.
- Apache Hive 1.2.2 is not using Apache ORC. - Apache Hive 2.3.9 is using Apache ORC 1.3.4. - Apache Hive 3.1.2 is using Apache ORC 1.5.6. - Apache Hive 4.0.0-SNAPSHOT is using Apache ORC 1.6.9. So, specifically, are you going to build from the Hive 1.2 source with Apache ORC 1.5.12 and compare it with Apache Hive 1.2.2? Dongjoon. On Tue, Aug 24, 2021 at 11:54 PM Purshotam Shah <[email protected]> wrote: > Hi, > > We have been running hive 1.2 successfully for few years. Hive-1.2 has > been very stable for us. > > We are planning to migrate to apache orc-1.5.12 thinking that we might get > better performance. > The plan is to keep hive-1.2 and replace orc with apache orc-1.5.12. > > We looked at the orc commit logs and didn't find much information on > performance improvement. > > Would you mind sharing some of the performance improvements we might get > after upgrading to orc-1.5.12 with hive-1.2? > > Thanks, >
