rahil-c opened a new pull request, #17904:
URL: https://github.com/apache/hudi/pull/17904

   ### Describe the issue this Pull Request addresses
   
   Issue: https://github.com/apache/hudi/issues/17627
   
   ### Summary and Changelog
   To rebase on master once following lance MOR support pr is landed: 
https://github.com/apache/hudi/pull/17768
   
   * Ensure that basic schema evolution works when adding a new column to a 
hudi table with lance as the file format.
   * Changes to `SparkLanceReaderBase` for handling NULL padding when older 
file schema does not contain newer column from a recent table schema change.
   * Added test `testSchemaEvolutionAddColumn` in `TestLanceDataSource`
   
   ### Impact
   
   None 
   
   ### Risk Level
   
   low
   
   ### Documentation Update
   none
   
   ### Contributor's checklist
   
   - [ ] Read through [contributor's 
guide](https://hudi.apache.org/contribute/how-to-contribute)
   - [ ] Enough context is provided in the sections above
   - [ ] Adequate tests were added if applicable
   


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