Cross-Partition Queries

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Queries that need data from multiple partitions. Scatter-gather sends the query to all relevant partitions and merges results. Denormalization duplicates data to avoid cross-partition queries. Secondary indexes can be local (partition-scoped) or global (requiring scatter-gather).

Key Properties

• Scatter-Gather
• Denormalization Strategy
• Secondary Index Partitioning

Related

• Range-Based Partitioning (range queries may be single-partition)
• Hash-Based Partitioning (most range queries become cross-partition)

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distributed-systems sharding