postgresql SQL对象的相关内容

阿里云文档 2025-06-16

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 2025-06-16

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 2025-02-17

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 2022-02-17 来自：开发者社区

PostgreSQL 10.1 手册_部分 II. SQL 语言_第 8 章数据类型_8.18. 对象标识符类型

8.18. 对象标识符类型对象标识符（OID）被PostgreSQL用来在内部作为多个系统表的主键。OID不会被添加到用户创建的表中，除非在创建表时指定了WITH OIDS或者default_with_oids配置变量被启用。类型oid表示一个对象标识符。也有多个oid的别名类型：regproc、regprocedure、regoper、regoperator、regclass、reg...

文章 2022-02-17 来自：开发者社区

PostgreSQL 10.1 手册_部分 II. SQL 语言_第 5 章数据定义_5.12. 其他数据库对象

5.12. 其他数据库对象表是一个关系型数据库结构中的核心对象，因为它们承载了我们的数据。但是它们并不是数据库中的唯一一种对象。有很多其他种类的对象可以被创建来使得数据的使用和刮泥更加方便或高效。在本章中不会讨论它们，但是我们在会给出一个列表：视图函数和操作符数据类型和域触发器和重写规则这些主题的详细信息请见第 V 部分。本文转自PostgreSQL中文...

文章 2022-02-15 来自：开发者社区

PostgreSQL 递归SQL 找出对象依赖

在使用数据库时，如果用到了视图，物化视图。在表，视图，物化视图这些对象之间就会产生依赖。例如 create table t(id int); create view v1 as select * from t; create view v2 as select * from v1; create view v3 as select v1.id from v1,v2 where v1...

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