[GitHub] [arrow-datafusion] alamb commented on issue #2041: Wildcard should not be allowed in LogicalPlan

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

alamb commented on issue #2041:
URL: https://github.com/apache/arrow-datafusion/issues/2041#issuecomment-1073219075


   FWIW I would expect this code:
   
   ```rust
   let plan = LogicalPlanBuilder::scan_empty(Some("t1"), &employee_schema(), None)?
               .join_using(&t2, JoinType::Inner, vec!["id"])?
               .project(vec![Expr::Wildcard])? // my question about here
               .build()?;
   ```
   
   To generate a DataFusionError with "Wildcard expressions are not valid in a logical query plan"


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