[GitHub] [arrow] mapleFU commented on pull request #36269: GH-36268: [C++] WIP: Support Parquet BloomFilter in dataset

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

mapleFU commented on PR #36269:
URL: https://github.com/apache/arrow/pull/36269#issuecomment-1604463179

   I've draft a patch, however I've meet some problems:
   
   1. In this implemention, all bf is cached when opening, can we delay loading the bloom filter until data is required by filter ( This might introduce IO)
   2. How to passing config into Fragment? I didn't find way to indicate bloom filter is required
   
   As for hashing and schema evolution, I'll try to fix it


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