morrySnow commented on PR #62737:
URL: https://github.com/apache/doris/pull/62737#issuecomment-4873323830

   **Correction to review item #6 (RuntimeFilterProducerHelperCross):** After 
deeper verification, this finding is **REFUTED**. The cross-join path creates 
VExprContexts for ALL filter descriptors by position 
(nested_loop_join_build_operator.cpp lines 77-81 create `_filter_src_expr_ctxs` 
from `_runtime_filter_descs[i].src_expr`), and the Cross `_init_expr` override 
copies by position rather than indexing by `expr_order`. So a decoupled RF at 
position `i` correctly gets `_filter_expr_contexts[i]` = expression from desc 
`i`. The base class approach of indexing by `expr_order` would crash for 
`expr_order == -1`, but the Cross override avoids this entirely by 
position-based copying. No bug here.
   
   Additionally, finding about `hasFilterInSubtree` missing pushed-down filters 
is also **REFUTED**: PhysicalFilter nodes are still present in the plan tree 
during the post-processing phase when `hasFilterInSubtree` runs.


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