nsivabalan commented on issue #8132:
URL: https://github.com/apache/hudi/issues/8132#issuecomment-1465087986

   I can't seem to find any reason why this could happen. but don't think 8079 
is the issue. that would surface differently. 
   anyways, 0.7.0 is very old. We have come a long way from 0.7.0. We have 
fixed issues w/ compaction and spark cache invalidation
   For eg https://github.com/apache/hudi/pull/4753
   https://github.com/apache/hudi/pull/4856 
   but I could not exactly say if these are the issues.
   But from the timeline provided, I could not reason about why parquet size 
might reduce. infact number of records reduced by 50% from previous version, 
even though log file modified just 100 ish records :( 


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