viirya commented on code in PR #9236:
URL: https://github.com/apache/arrow-datafusion/pull/9236#discussion_r1515255687
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datafusion/physical-plan/src/joins/hash_join.rs:
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@@ -290,6 +294,8 @@ pub struct HashJoinExec {
pub mode: PartitionMode,
/// Execution metrics
metrics: ExecutionPlanMetricsSet,
+ /// The indices of the columns in the output schema
+ pub projection: Option<Vec<usize>>,
Review Comment:
```suggestion
/// The projection indices of the columns for the output schema of join
pub projection: Option<Vec<usize>>,
```
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