Github user cloud-fan commented on the issue: https://github.com/apache/spark/pull/19571 I checked with how we introduce the new parquet reader before, and maybe we can follow it: https://github.com/apache/spark/pull/4308 Basically we leave the old orc data source as it is, and implement a new orc 1.4.1 data source in sql core module. Then we have an internal config to switch the implementation(by default true), and remove the old implementation after one or two releases.
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