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RDS for PostgreSQL

Document

What's new

Release note

Product announcement

Announcement on updating Service Level Agreement June 2, 2026

Announcement on the Deactivation of the Public Network Resolution Function

Announcement on Updating Service Level Agreement April 24, 2025

Announcement on Updating Service Level Agreement March 14, 2025

Announcement on Updating Service Level Agreement November 8, 2024

PostgreSQL instance test transfer fee

Overview

About RDS for PostgreSQL

Application scenarios

Product specifications

Constraints and limits

Common concepts

Billing

Overview

Billing items and prices

Billing method

Pay-as-you-go

Subscription

Switch to yearly or monthly subscription

Arrears and expiration

Renewal instructions

Subscription cancellation or instance specification modification

Quick start

Getting started overview

Creating an instance

Creating database and account

Configuring allowlists

Connecting an instance

User guide

Feature overview

Managing instances

Creating an instance

Viewing the details of an instance

Viewing instance list

Exporting the instance list

Modifying the specification

Regular modification of specification

Temporary instance specification upgrade

Restarting an instance or a readonly node

Deleting or unsubscribing an instance

Add instance to project

Read-only node overview

Access control

Managing deleted instance backups

Migrating availability zones

Managing tags

Filtering instances by tags

Tag-based bill splitting for instances

Limiting the instance scope of IAM user management by tags

Configuring maintenance window

Managing connections

Connecting to an instance

Type of address

Viewing instance connection information

Obtaining cross-regional private network address

Connecting to instance via client application

Connecting to an instance via command line

Managing connection endpoints

About endpoint

Creating a connection endpoint

Editing connection endpoints

Deleting a connection endpoint

Enabling global read-only

Modifying private network access port

Modifying private network address prefix

Enabling public network access

Disabling public network access

Enable or disable read/write separation

Read/Write separation strategy

Setting read-write separation weight

Service availability

Switching primary node

Managing accounts

Creating an account

Resetting an account password

Modifying account permissions

Cross-service access authorization

Deleting an account

Managing databases

Creating a database

Deleteing a database

Modifying the database owner

Cloning a database

Managing schemas

Creating a schema

Deleting a schema

Modifying schema owner

Monitoring and alerts

Monitoring metrics

Viewing monitoring information

Creating an alarm strategy

Viewing an event

Backup recovery

Data backup

Customizing backup policies

Creating a data backup

Viewing data backup progress

Downloading the data backup file

Deleting data backup

Data recovery

Restoring to a new instance

Restore to existing instance

WAL management

About replication slots

Viewing replication slot list

Deleting replication slot

Deleting replication slots in a batch

Configuring local remaining available space protection

Downloading WAL backup

Clearing WAL logs

Managing logs

Viewing and downloading logs

Data security

Managing the allowlist (new version)

Viewing the allowlists in the current region

Viewing the allowlists of an instance

Creating an allowlist

Modifying an allowlist

Merging allowlists

Associating with an allowlist

Disassociating with allowlists

Deleting an allowlist

Copying an allowlist

Synchronizing security group

Configuring SSL encryption

Enabling SSL encryption

Configuring SSL force encryption

Downloading a CA certificate

Updating an SSL certificate

Disabling SSL encryption

About TDE data encryption

Configuring parameters

Modifiable parameter list

Modifiable parameter validation rule description

Modifying parameters

View parameter modification history

Creating a parameter template

Managing parameter template

Applying parameter template

Applying parameter template in a batch

Exporting parameter configuration as parameter template

Data management

Database Workshop

Operation and maintenance events

Viewing operation and maintenance events

Executing an operation and maintenance event in advance

Modifying the switching time of the operation and maintenance event

Task center

Viewing a task

Executing a task in advance

Modifying the task execution time

Cancelling a task

Extensions

List of supported extensions

Cleaning space (pg_repack)

Bitmap computing (pg_roaringbitmap)

Searching based on high-dimensional vector similarity (pg_vector)

System read and write information statistics (pg_stat_kcache)

Logical analysis (pg_decoderbufs)

Task scheduler expanding (pg_cron)

Chemical molecular calculation retrieval (RDKit)

Chinese word segmentation (zhparser)

Logical log conversion (wal2json)

Compatibility extension (orafce)

Chinese search (pg_jieba)

Changing the given execution plan through annotation hints (pg_hint_plan)

Resource-intensive activity statistics (pg_profile)

Full-text search (pg_bigm)

Incremental view maintenance (pg_ivm)

Logging extensions (pg_jobmon)

Time-based and sequence-based table partition set management (pg_partman)

Database-native JWT generation and verification (pgjwt)

Native message queue (pgmq)

DML statement security protection (safeupdate)

Native GraphQL service engine (pg_graphql)

Memory hypothetical index (hypopg)

Intelligent index recommendation (index_advisor)

Time-ordered globally unique identifier (pg_uuidv7)

HyperLogLog algorithm extension (postgresql-hll)

Shared buffer real-time monitoring and analysis (pg_buffercache)

API reference

Call methods

V2(2022-01-01)

Global

DescribeAvailabilityZones

Managing instances

CreateDBInstance

DescribeDBInstances

DescribeDBInstanceDetail

DescribeDBInstanceSpecs

DescribeDBInstancePriceDetail

DescribeDBInstancePriceDifference

ModifyDBInstanceName

ModifyDBInstanceSpec

ModifyDBInstanceChargeType

ModifyDBInstanceAvailabilityZone

AddTagsToResource

RemoveTagsFromResource

RestartDBInstance

DeleteDBInstance

ModifyDBInstanceMaintenanceWindow

Managing databases

Managing accounts

ModifyDBAccountPrivilege

RevokeDBAccountPrivilege

Managing schemas

Managing connections

ModifyDBInstanceConfig

ModifyDBEndpointReadWeight

ModifyDBEndpointReadWriteFlag

ModifyDBEndpointReadWriteDelayThreshold

ModifyDBEndpointAddress

CreateDBEndpointPublicAddress

DeleteDBEndpointPublicAddress

DescribeDBInstanceProxyParameters

ModifyDBEndpointProxyConfig

DeleteDBEndpoint

Managing parameters

DescribeDBInstanceParameters

ModifyDBInstanceParameters

DescribeDBInstanceParametersLog

DescribeDBEngineVersionParameters

CreateParameterTemplate

ListParameterTemplates

DescribeParameterTemplate

DescribeApplyParameterTemplate

SaveAsParameterTemplate

CloneParameterTemplate

ModifyParameterTemplate

DeleteParameterTemplate

Backup and recovery

CreateBackup

DescribeBackups

DescribeDetachedBackups

DescribeRecoverableTime

DescribeBackupPolicy

ModifyBackupPolicy

DownloadBackup

GetBackupDownloadLink

RestoreToNewInstance

RestoreToExistedInstance

DeleteBackup

DescribeSlots

DeleteSlot

DescribeWALLogBackups

Managing logs

DescribeFailoverLogs

Event management

DescribePlannedEvents

ModifyPlannedEventExecuteTime

Data security

DescribeAllowLists

DescribeAllowListDetail

CreateAllowList

ModifyAllowList

AssociateAllowList

DisassociateAllowList

DeleteAllowList

UnifyNewAllowList

DescribeDBInstanceSSL

ModifyDBInstanceSSL

DownloadSSLCertificate

Task management

DescribeTasks

ModifyTask

SDK reference

V2（2022-01-01）

Developer tool

Best practices

Building an intelligent interactive Q&A system based on RDS for PostgreSQL

Use volcengine-rds-postgresql to manage RDS for PostgreSQL resources.

Performance document

Test methods

Performance test results

FAQs

Read/Write separation

Troubleshooting

How to troubleshoot and resolve inactive logical replication slots in an instance

Terms

Service-Specific Terms for Database Products and Services

Service Level Agreement for RDS for PostgreSQL

Appendix

List of reserved keywords

Common error log list

Preset alert template list

Time zone list

Documentation

RDS for PostgreSQL

FAQs

FAQs overview

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FAQs

FAQs overview

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FAQs overview

This topic summarizes frequently asked questions about RDS for PostgreSQL usage.

Storage space

What parts does the storage space of a PostgreSQL instance include?

What are the upper and lower limits of a PostgreSQL instance storage space?

Network connection

Why can't I connect to the database?

How should I handle error prompts in the RDS for PostgreSQL console?

Account privileges

What are the differences between a super account and a normal account?

Can I modify a specific permission of a super account?

Can a database be associated with multiple accounts?

Read-only node

What is a read-only node?

How to choose the specification for a read-only node?

Can the network type of the read-only node be different from that of the primary node?

Are the account and permissions of the read-only node the same as those of the primary node?

How many read-only nodes can be created under one instance at most?

Why does the read-only node have no backup function?

Will creating a read-only node affect the primary node?

Read/Write separation

Why does choosing read/write separation report an error?

What happens when enabling read/write separation?

Backup and recovery

Why can't I perform a backup?

Does the backup type support logical backup?

Can backups be made on read-only nodes?

Security

Is an IP address allowlist required for PostgreSQL instances?

How many IP address allowlists does an instance support at the maximum? How many IP addresses or segments does an allowlist support at the maximum?

Log

How long can I store the slow log details?

How long can I store the slow log details? Can the time be customized?

How long can the logs of switch to primary node be retained?

What are the precautions for service availability management when switching to primary node?

Parameter

Why can't I find the parameters to modify in parameter management?

Does the instance need to be restarted after modification of parameters?

Last updated: 2025.11.17 16:15:12

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