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Design a Distributed Query Engine
System DesignhardVery Common
distributed-systemsquery-optimizationfault-tolerancesql
Reported
12 times
Last seen
2026-03-25
First seen
2025-06-10
Active in
2025, 2026
Description
Design a system that can execute SQL queries across multiple data partitions in parallel. Consider fault tolerance, query optimization, and data shuffling.
Approach Tips
Start with the query lifecycle: parse -> optimize -> plan -> execute. Discuss how you'd handle node failures mid-query.
Sources
Blind·SDE-3·2026-02-15
LeetCode·Senior·2026-03-25
Glassdoor·Staff·2025-11-10
DB
Databricks
Data/AI
Typically appears in: Onsite - System Design
60 min — High-level system design focused on data platforms, distributed systems, or ML infrastructure.