# Design a wide, flat events table optimized for columnar storage

Canonical URL: <https://datadriven.io/problems/design-a-wide-flat-events-table-optimized-for-columnar-stor-8373048f>

Domain: Data Modeling · Difficulty: medium

## Problem

Design a wide, flat events table optimized for columnar storage. All fields should be at the top level for fast scans.

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