Description
Improvements to Query Performance in SQL Server 2022 Standard
SQL Server 2022 Standard brings significant advancements in query performance through two key features.
Intelligent Query Processing (IQP)
- Building Better Execution Plans: IQP analyzes workloads and data distribution to create more efficient execution plans compared to older versions.
- Multiple Execution Plans: For queries with parameter variations, IQP can generate different execution plans optimized for specific parameter values at runtime. This eliminates the issue of a single, potentially suboptimal plan being used for all query executions in previous versions.
Enhanced Query Store
- Availability Group Support: Query Store functionality is now available on read-only replicas within Availability Groups, enabling performance insights for disaster recovery scenarios.
- Query Store Hints: Similar to Azure SQL Database, SQL Server 2022 allows using Query Store hints to influence query plans without modifying application code. This provides a flexible way to fine-tune query performance.
SQL Server 2022 now offers enhanced IQP and Query Store features, ensuring superior query performance by dynamically adjusting to data and workload changes.
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