gabotechs opened a new pull request, #16183:
URL: https://github.com/apache/datafusion/pull/16183

   ## Which issue does this PR close?
   
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   It probably does not fully closes it but it partially addresses:
   - https://github.com/apache/datafusion/issues/15069
   
   ## Rationale for this change
   
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    Why are you proposing this change? If this is already explained clearly in 
the issue then this section is not needed.
    Explaining clearly why changes are proposed helps reviewers understand your 
changes and offer better suggestions for fixes.  
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   Being able to execute the full sqllogictest suite adding a Substrait 
roundtrip. This means:
   - Parsing the test statement
   - Building a logical plan out of it
   - Converting the logical plan to Substrait
   - Converting the Substrait plan back to logical
   - Execute it
   
   ## What changes are included in this PR?
   
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   There is no need to duplicate the description in the issue here but it is 
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   Adds a new `DataFusionSubstraitRoundTrip` sqllogictest runner implementation 
that will do a Substrait roundtrip where it makes sense, and a new 
`--substrait-round-trip` option to the sqllogictest CLI.
   
   Example:
   
   Runs the full aggregate.slt file doing a Substrait roundtrip on each 
individual statement
   ```shell
   cargo test --test sqllogictests -- --substrait-round-trip aggregate 
   ```
   
   Runs an individual failing test reproducing one specific issue with the 
current Substrait conversions
   ```shell
   cargo test --test sqllogictests -- --substrait-round-trip aggregate:1522
   ```
   
   This is still not enforced in the CI, and I would say the expectations are 
that it's just another tool to catch existing bugs in the current Substrait 
conversion code and better communicate them so that contributors have a clear 
path forward for contributing fixes.
   
   ## Are these changes tested?
   
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   N/A
   
   ## Are there any user-facing changes?
   
   No
   
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