houqp commented on a change in pull request #1023:
URL: https://github.com/apache/arrow-datafusion/pull/1023#discussion_r711823360
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File path: datafusion/src/physical_plan/hash_join.rs
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@@ -188,7 +182,8 @@ impl HashJoinExec {
let right_schema = right.schema();
check_join_is_valid(&left_schema, &right_schema, &on)?;
- let schema = Arc::new(build_join_schema(&left_schema, &right_schema,
join_type));
+ let (schema, column_indices) =
+ build_join_schema(&left_schema, &right_schema, join_type);
Review comment:
column indices are now created only once when we create the HashJoinExec
node.
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