morningman commented on PR #70093:
URL: https://github.com/apache/doris/pull/70093#issuecomment-6621370771

   Closing this PR because we no longer intend to support scan plans generated 
by old FEs.
   
   The substantive fix extends the fallback guarded by 
`!supports_iceberg_scan_semantics_v2(...)`. Current FE plans explicitly 
advertise scan semantics v2 and supply schema metadata for the applicable 
equality-delete keys, including historical fields, so they do not need this 
fallback. The other production changes propagate the full delete-file name path 
while preserving the existing leaf-name behavior.
   
   The two missing-key NULL test matrices have some independent coverage value, 
but they currently construct old-FE plans. That coverage can be added 
separately using current scan semantics, complete key/ancestor schema metadata, 
and appropriate name mappings for ID-less files. It does not require retaining 
this compatibility fix.
   


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