min-guk commented on PR #2273:
URL: https://github.com/apache/systemds/pull/2273#issuecomment-2974346345

   @mboehm7 One question: during FType propagation, if a TransRead has multiple 
TransWrite children and their FTypes conflict, how should that be handled?
   
   Is there any rule or priority for resolving such conflicts?
   
   ```
   // FederatedKMeansPlanningTest
   [Error] FType MISMATCH DETECTED for TransRead (hopName: C, hopID: 775)
   [Error] TRANSREAD HOP DETAILS - Type: DataOp, OpType: TRead, DataType: 
MATRIX, Dims: [4x-1]
   [Error] FILTERED CHILD HOPS FTYPE ANALYSIS:
   [Error]   FilteredChild[0] - Name: C, ID: 644, FType: ROW, Type: DataOp, 
OpType: TWrite, Dims: [4x100]
   [Error]   FilteredChild[1] - Name: C, ID: 696, FType: null, Type: DataOp, 
OpType: TWrite, Dims: [4x1000]
   [Error] Expected FType: ROW, Mismatched FType: null at child index: 1
   ```


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