Partitioning

Partition Strategies

nodes:
  - id: process_large_dataset
    type: transform
    partitioning:
      strategy: hash
      key: user_id
      partitions: 8
`

| Strategy | Description |
|----------|-------------|
| hash | Hash-based partitioning on key columns |
| 
ange | Range-based partitioning (e.g., date) |
| 
ound_robin | Even distribution across partitions |
| dynamic | Auto-detect optimal partition count |

## Date-Based Partitioning

```yaml
partitioning:
  strategy: range
  key: event_date
  start: "2026-01-01"
  end: "2026-12-31"
  interval: daily
`

## See Also

- [Performance Tuning](/docs/etl-jobs/performance-tuning) — Optimization guide
- [Visual Testing](/docs/dag-builder/visual-testing) — DAG validation