- Release Notes and Announcements
- Release Notes
- Open-Source Plugin Privilege Escalation Has Vulnerability Risk for PostgreSQL
- Announcements
- Security Risk Statement for Creating Partial Plugins in PostgreSQL Cloud Database
- TencentDB for PostgreSQL Will Start Billing for Backup Space
- Some Extensions on Lower Kernel Version Can't Be Created and Upgraded in TencentDB for PostgreSQL
- Announcement on the Risk of Privilege Escalation Vulnerability in Cloud Database PostgreSQL Open Source Plugin
- Product Introduction
- Purchase Guide
- Getting Started
- Kernel Version Introduction
- Operation Guide
- Instance Management
- Instance Lifecycle
- Setting Instance Maintenance Time
- Modifying Instance Configuration
- Setting instance availability zone for disaster recovery or region disaster recovery
- Modifying AZs
- Terminating Instances
- Restoring Instances
- Eliminating Instances
- Restarting Instances
- Modifying Data Replication Mode
- Switch Source-Replica Instance
- Upgrading Instance
- Read-Only Instance
- Account Management
- Database Management
- Database Optimization
- Parameter Management
- Log management
- Backup and Restoration
- Backup Principles and Solutions
- Backing up Data
- Downloading Backup
- Cloning Instance
- Automatic Backup Settings
- Restoring PostgreSQL Data on CVMs
- Deleting Backup
- Viewing Backup Space
- Setting Backup Download Rules
- Use Serverless Cloud Function to Transfer Historical Backups of PostgreSQL
- Rollback to the Original Instance
- Data Migration
- Database Audit
- Extension Management
- Network Management
- Access Management
- Data Encryption
- Tenant and Resource Isolation
- Security Groups
- Monitoring and Alarms
- Tag
- Instance Management
- PostgreSQL for Serverless
- MSSQL Compatible Version
- Practical Tutorial
- postgres_fdw Extension for Cross-database Access
- Automatically Creating Partition in PostgreSQL
- Searching in High Numbers of Tags Based on pg_roaringbitmap
- Querying People Nearby with One SQL Statement
- Configuring TencentDB for PostgreSQL as GitLab's External Data Source
- Supporting Tiered Storage Based on cos_fdw Extension
- Implement Read/Write Separation via pgpool
- Analyzing Slow SQL Using the auto_explain Plugin
- Using pglogical for Logical Replication
- Performance White Paper
- API Documentation
- 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
- FAQs
- Service Agreement
- Glossary
- Contact Us
- Release Notes and Announcements
- Release Notes
- Open-Source Plugin Privilege Escalation Has Vulnerability Risk for PostgreSQL
- Announcements
- Security Risk Statement for Creating Partial Plugins in PostgreSQL Cloud Database
- TencentDB for PostgreSQL Will Start Billing for Backup Space
- Some Extensions on Lower Kernel Version Can't Be Created and Upgraded in TencentDB for PostgreSQL
- Announcement on the Risk of Privilege Escalation Vulnerability in Cloud Database PostgreSQL Open Source Plugin
- Product Introduction
- Purchase Guide
- Getting Started
- Kernel Version Introduction
- Operation Guide
- Instance Management
- Instance Lifecycle
- Setting Instance Maintenance Time
- Modifying Instance Configuration
- Setting instance availability zone for disaster recovery or region disaster recovery
- Modifying AZs
- Terminating Instances
- Restoring Instances
- Eliminating Instances
- Restarting Instances
- Modifying Data Replication Mode
- Switch Source-Replica Instance
- Upgrading Instance
- Read-Only Instance
- Account Management
- Database Management
- Database Optimization
- Parameter Management
- Log management
- Backup and Restoration
- Backup Principles and Solutions
- Backing up Data
- Downloading Backup
- Cloning Instance
- Automatic Backup Settings
- Restoring PostgreSQL Data on CVMs
- Deleting Backup
- Viewing Backup Space
- Setting Backup Download Rules
- Use Serverless Cloud Function to Transfer Historical Backups of PostgreSQL
- Rollback to the Original Instance
- Data Migration
- Database Audit
- Extension Management
- Network Management
- Access Management
- Data Encryption
- Tenant and Resource Isolation
- Security Groups
- Monitoring and Alarms
- Tag
- Instance Management
- PostgreSQL for Serverless
- MSSQL Compatible Version
- Practical Tutorial
- postgres_fdw Extension for Cross-database Access
- Automatically Creating Partition in PostgreSQL
- Searching in High Numbers of Tags Based on pg_roaringbitmap
- Querying People Nearby with One SQL Statement
- Configuring TencentDB for PostgreSQL as GitLab's External Data Source
- Supporting Tiered Storage Based on cos_fdw Extension
- Implement Read/Write Separation via pgpool
- Analyzing Slow SQL Using the auto_explain Plugin
- Using pglogical for Logical Replication
- Performance White Paper
- API Documentation
- 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
- FAQs
- Service Agreement
- Glossary
- Contact Us
Category | Description |
Supported versions | 1. Source database Self-built databases PostgreSQL 10-16 Third-party cloud vendors 10-16 Alibaba Cloud RDS PostgreSQL AWS RDS PostgreSQL Huawei Cloud RDS for PostgreSQL TencentDB for PostgreSQL 10-16 (Migration within the same root account/Migration between different root accounts) 2. Target database TencentDB for PostgreSQL 10-16 |
Impact on the source database | 1. During full data migration, Data Transfer Service (DTS) consumes certain source instance resources, which may increase the load and pressure of the source database. If your database configuration is low, we recommend you perform the migration during off-peak hours. 2. During the actual migration process, the rate can be influenced by factors such as the read performance of the source instance, network bandwidth between the source and target instances, and the specifications and performance of the target instance. The migration concurrency is determined by the number of cores of the target instance. For example, if the target instance has 2 cores, the concurrency will be 2. |
Migration object | Interrelated data objects need to be migrated together; otherwise, the migration will fail. Common association relationships include: views referencing tables, views referencing views, storage procedures/functions/triggers referencing views/tables, and table association through primary and foreign keys. |
Source database requirements | When Full + Incremental Migration is selected as the migration type, the tables in the source database must have primary keys; otherwise, data inconsistency between the source and target databases may occur. For tables without primary keys, it is recommended to select Full Migration. |
Target database requirements | If the entire instance is to be migrated, the target database must not contain users and roles with the same names as those in the source database. |
Network description | 1. When a migration task is configured, the source database address must use the IP address and port that can directly connect to the PostgreSQL instance. Do not use the IP address and port of proxies like pgpool. 2. To ensure migration efficiency, cross-region migration is not supported for self-built instances on Cloud Virtual Machine (CVM). If cross-region migration is needed, choose the public network access method. |
Operation limits | 1. During the structural migration, full migration, and incremental migration, do not perform DDL operations or Large Object operations; otherwise, data inconsistency will occur. 2. Do not modify or delete user information (including the username, password, and permissions) and port numbers in the source and target databases during migration. |
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