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阿里云文档 2025-04-22

什么是慢SQL,如何使用SQL分析功能

PolarDB PostgreSQL版提供慢SQL分析功能，能够查看慢日志趋势和统计信息，并且提供SQL建议和诊断分析。

阿里云文档 2025-04-22

什么是慢SQL,如何使用SQL分析功能

PolarDB PostgreSQL版（兼容Oracle）提供慢SQL分析功能，能够查看慢日志趋势和统计信息，并且提供SQL建议和诊断分析。

阿里云文档 2025-02-17

如何使用SQL模式匹配

云原生数据仓库 AnalyticDB PostgreSQL 版兼容PostgreSQL模式匹配。本文简单列举云原生数据仓库 AnalyticDB PostgreSQL 版兼容的模式匹配及用法示例。

阿里云文档 2024-06-27

DAS企业版恢复部分单元Polar PG实例的付费计量

由于部分单元PolarDB PostgreSQL版实例此前开通数据库自治服务企业版（DAS企业版），计费组件出现未部署情况，导致长期没有计费产生，DAS企业版将于2024年07月05日 08:00恢复此部分开通DAS企业版的付费计量。

文章 2023-12-23 来自：开发者社区

PostgreSQL【应用 03】Docker部署的PostgreSQL扩展SQL之C语言函数（编写、编译、载入）计算向量余弦距离实例分享

通过使用 PostgreSQL 的 C 函数接口，我们可以编写用 C 语言实现的函数，并将其集成到数据库中。这些函数可以在 SQL 查询中像其他内置函数一样被调用，从而扩展 PostgreSQL 的功能。C 函数在某些情况下可以提供比 SQL 函数更高的执行效率，因为它们可以直接访问底层系统资源并进行更高级的优化。通过使用 C 函数，我们可以在函数内部实现复杂的算法和逻辑，利用 C 语言的功能和....

文章 2023-12-23 来自：开发者社区

PostgreSQL【应用 02】扩展SQL之C语言函数（编写、编译、载入）实例分享

文章 2023-05-23 来自：开发者社区

【PostgreSQL】PostgreSQL扩展：pg_stat_statements 优化SQL

扩展能够扩展，更改和推进Postgres的行为。怎么样？通过挂钩到低级的Postgres API挂钩。可以水平扩展Postgres的开源Citus数据库本身是作为PostgreSQL扩展实现的，这使Citus可以与Postgres版本保持最新，而不会像其他Postgres fork那样落后。尽管我想更深入地研究最有用的Postgres扩展：pg_stat_statements，但我之前已经写过各....

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