[GitHub] [arrow-datafusion] mingmwang commented on pull request #2172: Add LogicalPlan::AliasedRelation

[GitBox <gi...@apache.org>]

mingmwang commented on PR #2172:
URL: https://github.com/apache/arrow-datafusion/pull/2172#issuecomment-1091051845

   Looks like in DataFusion, the logical Project node already support Alias. It should be similar to SparkSQL's SubqueryAlias.
   And we can also use it to represent a NamedStruct
   
   ````
   
   pub struct Projection {
       /// The list of expressions
       pub expr: Vec<Expr>,
       /// The incoming logical plan
       pub input: Arc<LogicalPlan>,
       /// The schema description of the output
       pub schema: DFSchemaRef,
       /// Projection output relation alias
       pub alias: Option<String>,
   }
   
   
   ````


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