datafusion-contrib / datafusion-contrib/datafusion-distributed

[Iceberg] Commit append transactions

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Dominant language
Rust
Stars
139
Forks
67
Avg merge
3d 1h
Merged PRs (30d)
35

Description

Part of #599.

Implement the coordinator-side execution plan that collects written data files and commits an Iceberg fast-append transaction through the catalog.

Upstream has IcebergCommitExec here:

https://github.com/apache/iceberg-rust/blob/f28ae7dca60904a5f135f3b6eecb03b09032b581/crates/integrations/datafusion/src/physical_plan/commit.rs#L40-L80

This is the final stage of the append write path and must run after all data-file writers finish.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the upstream IcebergCommitExec implementation linked in the issue, then trace this repository's append write path and coordinator execution plan. Implement the final stage so it collects written data files after all writers finish and commits an Iceberg fast-append transaction through the catalog; verify the execution ordering and catalog commit behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
data-engineering, distributed-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
55/100

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