> ## Documentation Index > Fetch the complete documentation index at: https://gcore.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Update PostgreSQL cluster > Update the configuration of an existing PostgreSQL cluster. ## OpenAPI ````yaml /api-reference/services_documented/cloud_api.yaml patch /cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name} openapi: 3.1.0 info: title: Gcore OpenAPI – Cloud API description: >- This OpenAPI is an aggregated OpenAPI specification that unifies all Gcore products into a single file. It covers Cloud, CDN, DNS, WAAP, DDoS Protection, Object Storage, Streaming, and FastEdge services. version: '2026-05-14T07:00:22.640261+00:00' servers: - url: https://api.gcore.com security: - APIKey: [] tags: - name: Bare Metal x-displayName: Bare Metal - name: Container as a Service x-displayName: Container as a Service - name: Cost Reports x-displayName: Cost Reports - name: DDoS Protection x-displayName: DDoS Protection - name: Everywhere Inference x-displayName: Everywhere Inference - name: Everywhere Inference Apps x-displayName: Everywhere Inference Apps - name: File Shares x-displayName: File Shares - name: Floating IPs x-displayName: Floating IPs - name: Function as a Service x-displayName: Function as a Service - name: GPU Bare Metal x-displayName: GPU Bare Metal - name: GPU Virtual x-displayName: GPU Virtual - name: IP Ranges x-displayName: IP Ranges - name: Images x-displayName: Images - name: Instances x-displayName: Instances - name: Load Balancers x-displayName: Load Balancers - name: Logging x-displayName: Logging - name: Managed Kubernetes x-displayName: Managed Kubernetes - name: Managed PostgreSQL x-displayName: Managed PostgreSQL - name: Networks x-displayName: Networks - name: Placement Groups x-displayName: Placement Groups - name: Projects x-displayName: Projects - name: Quotas x-displayName: Quotas - name: Regions x-displayName: Regions - name: Registry x-displayName: Registry - name: Reservations x-displayName: Reservations - name: Reserved IPs x-displayName: Reserved IPs - name: Routers x-displayName: Routers - name: SSH Keys x-displayName: SSH Keys - name: Secrets x-displayName: Secrets - name: Security Groups x-displayName: Security Groups - name: Snapshot Schedules x-displayName: Snapshot Schedules - name: Snapshots x-displayName: Snapshots - name: Tasks x-displayName: Tasks - name: User Actions x-displayName: User Actions - name: User Role Assignments x-displayName: User Role Assignments - name: Volumes x-displayName: Volumes paths: /cloud/v1/dbaas/postgres/clusters/{project_id}/{region_id}/{cluster_name}: patch: tags: - Managed PostgreSQL summary: Update PostgreSQL cluster description: Update the configuration of an existing PostgreSQL cluster. operationId: PGClusterViewSet.patch parameters: - in: path name: project_id required: true description: Project ID schema: description: Project ID title: Project Id type: integer - in: path name: region_id required: true description: Region ID schema: description: Region ID title: Region Id type: integer - in: path name: cluster_name required: true description: Cluster name schema: description: Cluster name title: Cluster Name type: string requestBody: content: application/json: schema: $ref: '#/components/schemas/PatchPGClusterSerializer' responses: '200': description: OK content: application/json: schema: $ref: '#/components/schemas/TaskIDsSerializer' x-codeSamples: - lang: Python source: |- import os from gcore import Gcore client = Gcore( api_key=os.environ.get("GCORE_API_KEY"), # This is the default and can be omitted ) task_id_list = client.cloud.databases.postgres.clusters.update( cluster_name="cluster_name", project_id=0, region_id=0, ) print(task_id_list.tasks) - lang: Go source: "package main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\n\t\"github.com/G-Core/gcore-go\"\n\t\"github.com/G-Core/gcore-go/cloud\"\n\t\"github.com/G-Core/gcore-go/option\"\n)\n\nfunc main() {\n\tclient := gcore.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\ttaskIDList, err := client.Cloud.Databases.Postgres.Clusters.Update(\n\t\tcontext.TODO(),\n\t\t\"cluster_name\",\n\t\tcloud.DatabasePostgresClusterUpdateParams{\n\t\t\tProjectID: gcore.Int(0),\n\t\t\tRegionID: gcore.Int(0),\n\t\t},\n\t)\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n\tfmt.Printf(\"%+v\\n\", taskIDList.Tasks)\n}\n" components: schemas: PatchPGClusterSerializer: properties: databases: default: [] items: $ref: '#/components/schemas/Database' title: Databases type: array flavor: anyOf: - $ref: '#/components/schemas/Flavor' - type: 'null' default: null description: New instance RAM and CPU high_availability: anyOf: - $ref: '#/components/schemas/HighAvailabilityOptions' - type: 'null' default: null description: New High Availability settings network: anyOf: - $ref: '#/components/schemas/PublicNetwork' - type: 'null' default: null title: Network pg_server_configuration: anyOf: - $ref: '#/components/schemas/PatchPostgreSQLServerConfig' - type: 'null' default: null description: New PosgtreSQL cluster configuration storage: anyOf: - $ref: '#/components/schemas/StorageSize' - type: 'null' default: null description: New storage configuration users: default: [] items: $ref: '#/components/schemas/PgUser' title: Users type: array title: PatchPGClusterSerializer type: object TaskIDsSerializer: properties: tasks: description: >- List of task IDs representing asynchronous operations. Use these IDs to monitor operation progress: - `GET /v1/tasks/{task_id}` - Check individual task status and details Poll task status until completion (`FINISHED`/`ERROR`) before proceeding with dependent operations. example: - d478ae29-dedc-4869-82f0-96104425f565 examples: - - d478ae29-dedc-4869-82f0-96104425f565 items: type: string title: Tasks type: array required: - tasks title: TaskIDsSerializer type: object Database: properties: name: description: Database name example: mydatabase examples: - mydatabase pattern: ^[a-z]*$ title: Name type: string owner: description: Database owner from users list example: myuser examples: - myuser title: Owner type: string required: - name - owner title: Database type: object Flavor: properties: cpu: description: Maximum available cores for instance example: 1 examples: - 1 - 2 minimum: 1 title: Cpu type: integer memory_gib: description: Maximum available RAM for instance example: 1 examples: - 1 - 2 minimum: 1 title: Memory Gib type: integer required: - cpu - memory_gib title: Flavor type: object HighAvailabilityOptions: properties: replication_mode: $ref: '#/components/schemas/ReplicationMode' description: Type of replication examples: - sync - async required: - replication_mode title: HighAvailabilityOptions type: object PublicNetwork: properties: acl: description: Allowed IPs and subnets for incoming traffic example: - 92.33.34.127 examples: - - 92.33.34.127 items: format: ipvanyinterface type: string title: Acl type: array network_type: const: public description: Network Type example: public examples: - public title: Network Type type: string required: - network_type - acl title: PublicNetwork type: object PatchPostgreSQLServerConfig: properties: pg_conf: anyOf: - type: string - type: 'null' default: null description: New pg.conf file settings examples: - |- listen_addresses = 'localhost' port = 5432 max_connections = 100 shared_buffers = 128MB logging_collector = on title: Pg Conf pooler: anyOf: - $ref: '#/components/schemas/PoolerConfigurationSchema' - type: 'null' default: null examples: - null title: Pooler configuration for master version: anyOf: - type: string - type: 'null' default: null description: New cluster version examples: - '15' title: Version title: PatchPostgreSQLServerConfig type: object StorageSize: properties: size_gib: description: Total available storage for database example: 100 examples: - 100 maximum: 100 minimum: 1 title: Size Gib type: integer required: - size_gib title: StorageSize type: object PgUser: properties: name: description: User name example: myuser examples: - myuser pattern: ^[a-z]*$ title: Name type: string role_attributes: description: User's attributes example: - INHERIT examples: - - INHERIT items: enum: - BYPASSRLS - CREATEDB - CREATEROLE - INHERIT - LOGIN - NOLOGIN type: string title: Role Attributes type: array uniqueItems: true required: - name - role_attributes title: PgUser type: object ReplicationMode: enum: - async - sync title: ReplicationMode type: string PoolerConfigurationSchema: properties: mode: $ref: '#/components/schemas/PoolerModes' examples: - transaction type: const: pgbouncer default: pgbouncer example: pgbouncer examples: - pgbouncer title: Type type: string required: - mode title: PoolerConfigurationSchema type: object PoolerModes: enum: - session - statement - transaction title: PoolerModes type: string securitySchemes: APIKey: description: >- API key for authentication. Make sure to include the word `apikey`, followed by a single space and then your token. Example: `apikey 1234$abcdef` type: apiKey in: header name: Authorization ````