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---
title: "列式存储"
type: concept
tags: [存储, 数据仓库]
sources: [ctp-topic-68-introduction-to-redshift]
last_updated: 2026-04-18
---
## Summary
列式存储Columnar Storage是一种将数据按列而不是按行存储的数据库存储方式针对数据仓库操作进行了优化。
## Definition
- **优势**:更快的查询性能、更低的内存占用、更高的压缩效率
- **适用场景**OLAP 场景、大量聚合查询
## Key Benefits
- 按列读取特定列数据
- 更高的压缩比(同一列数据类型相似)
- 减少 I/O 操作
- 提升聚合查询性能
## Connections
- [[AWS-Redshift]] → 使用 → [[列式存储]]