Wei Liu created SPARK-49462:
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Summary: A query running under ckpt version v1 should be able to
read a STATELESS query running under ckptv2
Key: SPARK-49462
URL: https://issues.apache.org/jira/browse/SPARK-49462
Project: Spark
Issue Type: Task
Components: SS
Affects Versions: 4.0.0
Reporter: Wei Liu
Follow up to [https://github.com/apache/spark/pull/47932]
The validate version method force checks if the version persisted in the commit
log
[https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/CommitLog.scala#L59]
But the V2 checkpoint is only meaningful to stateful queries, so for a
stateless query, a CommitLog running under V1 (old code) should be able to
process a persisted commit log that has V2 format (new log)
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