# Two candidate destinations sit on the canvas

Canonical URL: <https://datadriven.io/problems/two-candidate-destinations-sit-on-the-canvas-the-plain-snow-159482a5>

Domain: Pipeline Design · Difficulty: medium

## Problem

Two candidate destinations sit on the canvas. The plain Snowflake table accumulates rows on every run; the Iceberg table sets the partition's state regardless of prior content. Apply the section's two-run test (run the pipeline twice on the same date) and route the dashboard through the destination that passes.

## Related

- [All practice problems](https://datadriven.io/problems)
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- [Data Engineering Interview Prep Guide](https://datadriven.io/data-engineer-interview-prep)
- [Daily Challenge](https://datadriven.io/daily)

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