Column bloom filter: Show bloom filters in tools
- Dominant language
- Java
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Description
command result as follow:
parquet-tools bloom-filter BloomFilter.snappy.parquet
row-group 0:
bloom filter for column id:
NONE
bloom filter for column uuid:
Hash strategy: block
Algorithm: block
Compression: uncompressed
Bitset size: 1048576
**Reporter**: [BingKun Pan](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=panbingkun) / @panbingkun
**Note**: *This issue was originally created as [PARQUET-2156](https://issues.apache.org/jira/browse/PARQUET-2156). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
Contributor guide
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Research direction
Start with the parquet-tools bloom-filter command and inspect how it currently reports each column in a row group. The work is done when the command displays the bloom-filter details shown in the issue, including strategy, algorithm, compression, and bitset size, while still reporting columns with no filter as NONE.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- cli
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100