LsomeYeah commented on PR #8693:
URL: https://github.com/apache/paimon/pull/8693#issuecomment-5019722389

   > Thanks for this PR! Does the target table store the blobs from source 
table as blob format or blob descriptors? If as blob format, I think we can use 
`blob-descriptor.XXX` to specify options for CatalogContext as in #7231 If as 
blob descriptors, I think blob-view is designed to solve this.
   
   @steFaiz 
   Thanks for the suggestion! 
   The target stores an independent managed BLOB copy: it reads the blob 
through the source descriptor and writes it into the target’s own BLOB storage.
   `blob-descriptor.*` only provides static CatalogContext options, while the 
source table’s data token is dynamically refreshed by its FileIO and cannot be 
reliably materialized into an options map. blob-view is a no-copy reference 
with different semantics.
   Hope this clarifies the motivation for source-table.


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