Eric Marnadi created SPARK-50573:
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Summary: Adding State Schema ID to State Rows to schema evolution
Key: SPARK-50573
URL: https://issues.apache.org/jira/browse/SPARK-50573
Project: Spark
Issue Type: New Feature
Components: Structured Streaming
Affects Versions: 4.0.0
Reporter: Eric Marnadi
In order to support schema evolution without a full rewrite, we are prepending
each state row with a state schema ID, which we will use in subsequent changes
to look up the schema that a row was written with. This change adds the
encoding and decoding of this prefix through the StateRowPrefixEncoder.
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