datafusion-contrib / datafusion-contrib/datafusion-distributed

[Iceberg] Support partitioning in work-unit feeds

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#606 2 comments 0 reactions 1 assignee View on GitHub

@sandugood is already working on this.

Since Sep 12, 2026.

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Description

Part of #599.

Extend IcebergWorkUnitFeed beyond Partitioning::UnknownPartitioning to support hash and range partitioning, including routing scan tasks according to the requested output partitioning.

Essentially, implementing these TODO comments in the code:

https://github.com/datafusion-contrib/datafusion-distributed/blob/72203a0faf105ca9c6d5775a184ca4e1e1cd79d1/iceberg/src/work_unit_feed.rs#L93-L94

https://github.com/datafusion-contrib/datafusion-distributed/blob/72203a0faf105ca9c6d5775a184ca4e1e1cd79d1/iceberg/src/work_unit_feed.rs#L187-L188

This needs to define which requested partitioning schemes can actually be satisfied from Iceberg scan tasks, then route the tasks without violating those semantics.

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