waynexia opened a new issue, #8149:
URL: https://github.com/apache/arrow-datafusion/issues/8149

   ### Is your feature request related to a problem or challenge?
   
   Tracks [substrait](https://substrait.io/) support progress
   
   ### Describe the solution you'd like
   
   ### LogicalPlan
   
   - [ ] CrossJoin
   - [ ] Repartition
   - [ ] Subquery
   - [ ] Values
   - [ ] Unnest
   
   The following logical plans I think we don't need to support:
   
   - Statement
   - EmptyRelation
   - Analyze
   - Explain
   - Prepare
   - Dml
   - Ddl
   - Copy
   - DescribeTable
   
   
   ### Expression
   
   - [ ] ScalarVariable
   - [ ] Negative
   - [ ] SimilarTo
   - [ ] Not
   - [ ] IsTrue
   - [ ] IsFalse
   - [ ] IsUnknown
   - [ ] IsNotTrue
   - [ ] IsNotFalse
   - [ ] IsNotUnknown
   - [ ] TryCast
   - [ ] Sort
   - [ ] ScalarUDF
   - [ ] Wildcard
   - [ ] Exists
   - [ ] GetIndexedField
   - [ ] InSubquery
   - [ ] ScalarSubquery
   - [ ] Alias https://github.com/apache/arrow-datafusion/issues/6489
   
   The following exprs I think we don't need to support:
   
   - OuterReferenceColumn
   - Placeholder
   
   ### Others
   
   ### Describe alternatives you've considered
   
   _No response_
   
   ### Additional context
   
   Substrait to DataFusion's physical plan is tracked at 
https://github.com/apache/arrow-datafusion/issues/5173


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