Concept数据仓库 / Data Warehouse
Data Warehouse
An analytics-oriented centralized data storage system used to integrate data from multiple sources and support complex queries and BI analysis. It typically features optimization mechanisms such as columnar storage, MPP architecture, and query caching.
Timeline (last 90 days)
Oct 16
A semantic layer can ensure consistent metric definitions, but it cannot stop the data warehouse from re-executing a full scan and aggregation because the query wording changed.
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