jonahgao commented on code in PR #10459:
URL: https://github.com/apache/datafusion/pull/10459#discussion_r1597638606
##########
datafusion/optimizer/src/common_subexpr_eliminate.rs:
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@@ -1154,12 +1154,12 @@ mod test {
let table_scan = test_table_scan()?;
let plan = LogicalPlanBuilder::from(table_scan)
- .project(vec![lit(1) + col("a")])?
+ .project(vec![lit(1) + col("a"), col("a")])?
Review Comment:
It corresponds to `select a+1 from (select a+1 from t)`, which is not a
valid query.
```sh
> select a+1 from (select a+1 from t);
Schema error: No field named a. Valid fields are "t.a + Int64(1)"
```
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