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https://issues.apache.org/jira/browse/PARQUET-2226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17676850#comment-17676850
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ASF GitHub Bot commented on PARQUET-2226:
-----------------------------------------
yabola opened a new pull request, #1020:
URL: https://github.com/apache/parquet-mr/pull/1020
Make sure you have checked _all_ steps below.
### Jira
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Jira](https://issues.apache.org/jira/browse/PARQUET/) issues and references
them in the PR title. For example, "PARQUET-1234: My Parquet PR"
- https://issues.apache.org/jira/browse/PARQUET-XXX
- In case you are adding a dependency, check if the license complies with
the [ASF 3rd Party License
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### Tests
- [ ] My PR adds the following unit tests __OR__ does not need testing for
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### Commits
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addition, my commits follow the guidelines from "[How to write a good git
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1. Subject is separated from body by a blank line
1. Subject is limited to 50 characters (not including Jira issue reference)
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1. Subject uses the imperative mood ("add", not "adding")
1. Body wraps at 72 characters
1. Body explains "what" and "why", not "how"
### Documentation
- [ ] In case of new functionality, my PR adds documentation that describes
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- All the public functions and the classes in the PR contain Javadoc that
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> Support union Bloom Filter
> --------------------------
>
> Key: PARQUET-2226
> URL: https://issues.apache.org/jira/browse/PARQUET-2226
> Project: Parquet
> Issue Type: Improvement
> Reporter: Mars
> Priority: Major
>
> We need to collect Parquet's bloom filter of multiple files, and then
> synthesize a more comprehensive bloom filter for common use.
> Guava supports similar api operations
> https://guava.dev/releases/31.0.1-jre/api/docs/src-html/com/google/common/hash/BloomFilter.html#line.252
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