mapleFU commented on PR #14351:
URL: https://github.com/apache/arrow/pull/14351#issuecomment-1348065307

   > Would you be willing to submit a v2 PR later? It would be a pity if we 
supported v1 pages better than v2 pages.
   
   Sure, seems that v2 it's a bit more tricker, it should use accumulate crc:
   1. `set crc = 0`
   2. if rep-level exists, do `crc = checksum(rep-levels, 0)`
   3. if def-level exists, do  `crc = checksum(def-levels, crc)`
   4. if compressed data exists, do `crc = checksum(data, crc)`
   
   It's really a bit more trickey here, so I think do it in same patch is 
complex. Let me finish it later @pitrou 


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