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Posted to github@arrow.apache.org by "madgene (via GitHub)" <gi...@apache.org> on 2023/04/09 05:09:15 UTC

[GitHub] [arrow-rs] madgene commented on issue #3851: Support `get_row_group` in AsyncFileReader

madgene commented on issue #3851:
URL: https://github.com/apache/arrow-rs/issues/3851#issuecomment-1501042885

   @Ted-Jiang 如果用SerializedFileReader先把parquet文件中的所有bloom filter数据都读取出来，然后调用prune_row_groups_by_bloom_filter方法做prune，PruningPredicate::prune中首先创建一个RecordBatch再通过self.predicate_expr.evaluate(&statistics_batch)方法。请教一下怎么用bloom filter数据构建RecordBatch再evaluate，或者是通过什么别的方式能够evaluate？


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