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TPC-DS（Transaction Processing Performance Council Decision Support Benchmark，事务处理性能委员会决策支持基准）是由国际组织 TPC 制定的数据仓库性能测试标准。其采用雪花模型与星型模型混合设计，包含 7 张事实表和 17 张维度表，覆盖零售、金融等业务场景。测试流程包括：生成可扩展的测试数据（支持 1TB 至 100TB 标度因子），并执行 99 个复杂 SQL 查询（覆盖统计、报表、数据挖掘等场景），最终通过 QphDS（每小时查询数）等指标评估系统在高并发、大数据量下的处理能力。

作为 TPC-DS 的升级版，TPC-DS 具备更复杂的数据模型（TPC-DS 仅 8 张表）、更丰富的查询类型以及对 OLAP 操作的支持，已成为当前主流的决策支持基准。
作为 TPC-H 的升级版，TPC-DS 具备更复杂的数据模型（TPC-H 仅 8 张表）、更丰富的查询类型以及对 OLAP 操作的支持，已成为当前主流的决策支持基准。

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<h4>说明</h4>
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