In the context of Distributed Data Warehousing, what does "data locality" refer to?
- The geographical proximity of data across multiple data centers
- The logical organization of data within a database
- The number of data nodes in a cluster
- The physical location of data in a data center
"Data locality" in Distributed Data Warehousing refers to the geographical proximity of data across multiple data centers. This concept is essential for optimizing query performance, as it reduces data transfer latencies and speeds up data access when distributed data is physically closer to where it's needed.
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