mihaibudiu commented on code in PR #4580:
URL: https://github.com/apache/calcite/pull/4580#discussion_r2440660775
##########
core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java:
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@@ -3129,6 +3130,8 @@ protected RelNode createAsofJoin(
}
final ImmutableBitSet.Builder requiredColumns = ImmutableBitSet.builder();
final List<CorrelationId> correlNames = new ArrayList<>();
+ // Mapping from (correlId, originalFieldIndex) to projectedFieldIndex for
aggregation
+ final Map<Pair<CorrelationId, Integer>, Integer> fieldMapping = new
HashMap<>();
Review Comment:
Only if there exists a better data structure for Map<Integer, Integer> which
you could reuse. Otherwise this is fine.
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