- 动态与公告
- 产品简介
- 购买指南
- 快速入门
- 内核能力介绍
- 操作指南
- ServerlessDB 相关
- MSSQL 兼容版
- 实践教程
- 性能白皮书
- API 文档
- History
- Introduction
- API Category
- Making API Requests
- Instance APIs
- CreateInstances
- DescribeDBInstances
- DescribeDBInstanceAttribute
- DescribeEncryptionKeys
- DescribeDBInstanceHAConfig
- SwitchDBInstancePrimary
- ModifyDBInstanceName
- ModifyDBInstanceSpec
- ModifyDBInstanceDeployment
- UpgradeDBInstanceKernelVersion
- ModifyDBInstanceHAConfig
- ModifyDBInstanceChargeType
- ModifyDBInstancesProject
- ModifySwitchTimePeriod
- RenewInstance
- SetAutoRenewFlag
- RestartDBInstance
- IsolateDBInstances
- DisIsolateDBInstances
- DestroyDBInstance
- CreateDBInstances
- InitDBInstances
- UpgradeDBInstance
- UpgradeDBInstanceMajorVersion
- Read-only Replica APIs
- Backup and Recovery APIs
- DescribeAvailableRecoveryTime
- DescribeCloneDBInstanceSpec
- CloneDBInstance
- RestoreDBInstanceObjects
- DescribeBackupOverview
- DescribeBackupSummaries
- DescribeBackupPlans
- ModifyBackupPlan
- CreateBaseBackup
- DescribeBaseBackups
- ModifyBaseBackupExpireTime
- DeleteBaseBackup
- DescribeLogBackups
- DeleteLogBackup
- DescribeBackupDownloadURL
- DescribeBackupDownloadRestriction
- ModifyBackupDownloadRestriction
- DescribeDBXlogs
- DescribeDBBackups
- Parameter Management APIs
- Security Group APIs
- Performance Optimization APIs
- Account APIs
- Specification APIs
- PostgreSQL for Serverless APIs
- Network APIs
- Data Types
- Error Codes
- 常见问题
- 相关协议
- 词汇表
- 联系我们
- 动态与公告
- 产品简介
- 购买指南
- 快速入门
- 内核能力介绍
- 操作指南
- ServerlessDB 相关
- MSSQL 兼容版
- 实践教程
- 性能白皮书
- API 文档
- History
- Introduction
- API Category
- Making API Requests
- Instance APIs
- CreateInstances
- DescribeDBInstances
- DescribeDBInstanceAttribute
- DescribeEncryptionKeys
- DescribeDBInstanceHAConfig
- SwitchDBInstancePrimary
- ModifyDBInstanceName
- ModifyDBInstanceSpec
- ModifyDBInstanceDeployment
- UpgradeDBInstanceKernelVersion
- ModifyDBInstanceHAConfig
- ModifyDBInstanceChargeType
- ModifyDBInstancesProject
- ModifySwitchTimePeriod
- RenewInstance
- SetAutoRenewFlag
- RestartDBInstance
- IsolateDBInstances
- DisIsolateDBInstances
- DestroyDBInstance
- CreateDBInstances
- InitDBInstances
- UpgradeDBInstance
- UpgradeDBInstanceMajorVersion
- Read-only Replica APIs
- Backup and Recovery APIs
- DescribeAvailableRecoveryTime
- DescribeCloneDBInstanceSpec
- CloneDBInstance
- RestoreDBInstanceObjects
- DescribeBackupOverview
- DescribeBackupSummaries
- DescribeBackupPlans
- ModifyBackupPlan
- CreateBaseBackup
- DescribeBaseBackups
- ModifyBaseBackupExpireTime
- DeleteBaseBackup
- DescribeLogBackups
- DeleteLogBackup
- DescribeBackupDownloadURL
- DescribeBackupDownloadRestriction
- ModifyBackupDownloadRestriction
- DescribeDBXlogs
- DescribeDBBackups
- Parameter Management APIs
- Security Group APIs
- Performance Optimization APIs
- Account APIs
- Specification APIs
- PostgreSQL for Serverless APIs
- Network APIs
- Data Types
- Error Codes
- 常见问题
- 相关协议
- 词汇表
- 联系我们
通常情况说明
极端情况说明
在极端情况下，如重大缺陷、安全问题或者已知潜在风险等，系统会通过短信、邮件和站内信等渠道提前通知您（实际接收方式以用户 消息中心 订阅配置为准），并在云数据库 PostgreSQL 实例的维护时间内，系统会自动发起并完成数据库内核小版本的强制升级。
升级内核小版本影响
若待升级的内核版本的实例有关联其他实例（只读实例），为保证数据复制一致性，关联实例会一起进行内核小版本升级。
云数据库 PostgreSQL 版本升级可能会涉及数据迁移，通常迁移速度跟数据量大小有关系，升级期间您业务不受影响，可正常访问。
小版本升级完成时会涉及实例切换，数据库会有秒级闪断，建议应用程序有自动重连功能。
建议您可以通过控制台或者 API 来 设置实例维护时间，以避免在业务高峰期发生强制升级。
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