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Target customers: BI engineers and data analysts who conduct iterative and interactive data exploration. Business systems and data analysts that require quick access to large volumes of historical data. Data development engineers who perform query verification and function debugging. Feature released: The MCQA feature enables EB-level data warehousing services to provide elastic concurrent queries within seconds. Based on MaxCompute throughput optimizations, this feature provides support for scenarios where services are latency-sensitive. This feature also allows you to use MaxCompute in different scenarios, such as ETL, data mining (machine learning), data exploration (ad-hoc queries), and report analysis. It automatically identifies small jobs, accelerates the job execution, and quickly generates query results. This improves the processing performance of MaxCompute SQL.