apache / apache/beam

Implement parallelized (approximate) mode

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core dataframe improvement P3 python
Dominant language
Java
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Description

Currently we require Singleton partitioning to compute mode(). We should provide an option to compute approximate mode() which can be parallelized.

Imported from Jira [BEAM-12181](https://issues.apache.org/jira/browse/BEAM-12181). Original Jira may contain additional context.
Reported by: bhulette.

Contributor guide

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Research direction

No file or test is named in the issue. Start by locating the existing mode() implementation and its tests, then read the linked BEAM-12181 Jira issue for additional context; done means an approximate mode option is available without requiring Singleton partitioning and its behavior is covered by tests.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
data-engineering, distributed-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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