apache / apache/beam

DataFrame API: Parallelized reset_index(level=None)

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core dataframe dsl improvement P3 python
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Java
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Description

Do distributed re-index with offsets.

Could be done in conjunction with an order-imposing operation, or we could just guarantee some unique index

Imported from Jira [BEAM-12182](https://issues.apache.org/jira/browse/BEAM-12182). Original Jira may contain additional context.
Reported by: bhulette.

Contributor guide

Open the contributing guide

Research direction

Start with the DataFrame API's reset_index(level=None) entry point and the linked BEAM-12182 Jira issue for context. Define how distributed re-indexing with offsets or a guaranteed unique index should behave, then add coverage demonstrating the chosen behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data, distributed-systems
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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