apache / apache/parquet-java

Column bloom filter: Show bloom filters in tools

Open
#2,693 4 comments 2 reactions 0 assignees View on GitHub
Component: Parquet Priority: Minor Type: enhancement
Dominant language
Java
Stars
3.1k
Forks
1.6k
Avg merge
3d 12h
Merged PRs (30d)
33

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

No contributing guide indexed for this repository

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

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.