[I] [Bug] Vector partial updates can return stale values in Data Evolution tables [paimon]

["zhoulii (via GitHub)" <gi...@apache.org>]

zhoulii opened a new issue, #9876:
URL: https://github.com/apache/paimon/issues/9876

   ### Search before asking
   
   - [x] I searched in the [issues](https://github.com/apache/paimon/issues) and found nothing similar.
   
   
   ### Paimon version
   
   2.0
   
   ### Compute Engine
   
   sdk
   
   ### Minimal reproduce step
   
   1. Create a table with row tracking, Data Evolution, and two dedicated vector columns: `v1` and `v2`.
   2. Insert rows with both vectors in the same file, with `v2` initially NULL.
   3. Update only `v2` to a non-NULL vector, producing a separate vector file.
   4. Read the table, including `v2`.
   
   ### What doesn't meet your expectations?
   
   Expected: `v2` returns the updated vector, while `v1` remains unchanged.
   
   Actual: `v2` still returns NULL from the older file. Existing non-NULL values can also remain stale after updates.
   
   ### Anything else?
   
   Column-group ordering can take precedence over file sequence numbers. The latest provider needs to be selected per field and row range; sorting entire groups by their maximum sequence is insufficient.
   
   ### Are you willing to submit a PR?
   
   - [x] I'm willing to submit a PR!


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Re: [I] [Bug] Vector partial updates can return stale values in Data Evolution tables [paimon]

["JingsongLi (via GitHub)" <gi...@apache.org>]

JingsongLi closed issue #9876: [Bug]  Vector partial updates can return stale values in Data Evolution tables
URL: https://github.com/apache/paimon/issues/9876


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