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Posted to dev@parquet.apache.org by "Walid Gara (Jira)" <ji...@apache.org> on 2020/03/13 09:27:00 UTC

[jira] [Commented] (PARQUET-1815) Add union API to BloomFilter interface

    [ https://issues.apache.org/jira/browse/PARQUET-1815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17058549#comment-17058549 ] 

Walid Gara commented on PARQUET-1815:
-------------------------------------

Thanks for the suggestion [~junjie]. If you didn't implement it yet I have already one, I can open PR, otherwise, I'll review yours. 
 Also, I thought of the intersection between bloom filters, it can be useful as well.

> Add union API to BloomFilter interface
> --------------------------------------
>
>                 Key: PARQUET-1815
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1815
>             Project: Parquet
>          Issue Type: Improvement
>            Reporter: Junjie Chen
>            Priority: Minor
>
> Sometimes, one may want to build a file-level bloom filter by union all row groups bloom filters so that to save some memory. Add a union API that could make it easy to use.



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