[GitHub] [arrow] jllipatz commented on issue #34820: Abnormal memory consumption with as_record_batch_reader

["jllipatz (via GitHub)" <gi...@apache.org>]

jllipatz commented on issue #34820:
URL: https://github.com/apache/arrow/issues/34820#issuecomment-1494086169

   Thanks.
   `left_join(ds, dep,by=c("DR"="DEP")) %>%
     write_dataset('V:/PALETTES/tmp/rp68a19c.parquet')` 
   makes the end of my program unuseful.
   But it doesn't help very much. The writing into the file starts immediatly but memory use increases when writing other records. At the end of the process it uses about 10% memory less than the other arrow solutions with an elapsed time similar. Obviously it doesn't need to collect the result in memory first but what is the gain if it ends with almost the whole data in temporary memory? 


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