rangareddy commented on issue #17262:
URL: https://github.com/apache/hudi/issues/17262#issuecomment-5365807773

   This issue was reviewed as part of the JIRA-migrated backlog triage 
(HUDI-7861).
   
   **Findings: not resolvable by code inspection alone.**
   
   The MDT schema is version-aware in places today: 
`HoodieIndexVersion.getCurrentVersion` returns V1 or V2 per metadata partition 
type based on `HoodieTableVersion`, and column stats, partition stats and 
expression index all switch to V2 at table version 9. So the mechanism the 
ticket asks for partly exists.
   
   What I could not establish by reading is whether the specific requirement 
holds - a bridge-release (0.16) reader successfully consuming a metadata table 
written by 1.0.0 that contains one or more of the newer MDT partitions. That is 
a cross-version compatibility test, not a code property.
   
   Note also the description opens with "old:", which suggests the scope was 
already rewritten once; it would help to state the current intent.
   
   Keeping this open.
   


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