# Design an analytics events table optimized for columnar storage (like Parquet)

Canonical URL: <https://datadriven.io/problems/design-an-analytics-events-table-optimized-for-columnar-stor-8b31a902>

Domain: Data Modeling · Difficulty: medium

## Problem

Design an analytics events table optimized for columnar storage (like Parquet). Use nested STRUCTs for user_agent details and geo info, plus an ARRAY for tags. Columnar formats handle nested data efficiently.

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