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Building Real-Time OLAP Dashboards: ClickHouse vs. PostgreSQL Columnar Store

Sub-second analytical queries across 1 billion rows: MergeTree sparse indexing, vectorized SIMD execution, Hydra PostgreSQL columnar extensions, and Kafka ingestion.

#ClickHouse #PostgreSQL #OLAP #Columnar Storage

10/3/2026

15 min

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KNetwork Systems Engineering

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