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aligned capitalization for Elastic Clusters #310

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aligned capitalization for Elastic Clusters
JaredMSFT Sep 11, 2025
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59 changes: 32 additions & 27 deletions articles/postgresql/flexible-server/concepts-elastic-clusters-limitations.yml
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Expand Up @@ -25,74 +25,79 @@ sections:
- question: In what regions can I use elastic clusters?
answer: |
Elastic clusters are an Azure Database for PostgreSQL flexible server feature and as such are available in the [same regions](https://azure.microsoft.com/explore/global-infrastructure/products-by-region/).

- question: Elastic clusters aren't available in the region I need, what can I do?
answer: |
We're enabling other regions shortly, if you're interested in specific regions fill out [this form](https://aka.ms/preview-pg-citus).
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@denzilribeiro denzilribeiro Sep 18, 2025

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We should not direct them to a form, there are concerns around PII... Rather open a support case with Capacity management type thing, Aka this si the "same" as Flex being available in any region no different

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@mulander mulander Sep 24, 2025

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This PR removes that section completely, but point taken and noted.


- question: Can I create more databases in an elastic cluster?
answer: |
The Azure portal provides credentials to connect to exactly one database per cluster. Currently, creating another database isn't allowed, and the `CREATE DATABASE` command fails with an error.

This database is called `postgres` by default. After the public preview, custom database names at cluster provisioning time will be supported.

- question: What PostgreSQL version is supported with elastic clusters?
answer: Elastic clusters support PostgreSQL version 16 during the public preview.
answer: Elastic clusters support PostgreSQL version 16 during the public preview, and PostgreSQL version 17 will be available in the Generally Available (GA) release.

- question: Can I use Major Version Upgrades with elastic clusters?
answer: Currently, Major Version Upgrades aren't supported during the preview.

- question: Can I download server logs?
answer: Currently, downloading server logs isn't supported during the preview. You can use Azure Metrics, Log Analytic Workspaces and PostgreSQL views to analyze cluster behavior.
- question: Can I use terraform to deploy elastic clusters?
answer: Currently, terraform isn't supported during the preview. ARM templates are supported.

- question: Can I use Terraform to deploy elastic clusters?
answer: Currently, Terraform isn't supported during the preview, however Terraform will be available in the Generally Available (GA) release. ARM templates are supported.

- name: Backups
questions:
- question: Can I use GEO backups & GEO restore?
answer: Currently, GEO backups & GEO restore aren't supported during the preview.

- question: Is Long Term Retention (LTR) supported?
answer: Currently, Long Term Retention isn't supported during the preview.

- name: Extensions
questions:
- question: Why is TimescaleDB not available with elastic clusters?
answer: TimescaleDB extension isn't supported on elastic cluster due to low-level conflicts with the Citus extension.
- question: What extensions aren't supported during preview?
answer: |
The following extensions aren't supported during the preview:
- anon
- pg_qs - Query Store
- postgis_topology
- TimescaleDB
- question: Which extensions are available for elastic clusters?
answer: Elastic clusters are compatible with the majority of PostgreSQL extensions. For a comprehensive list, please refer to the [extension compatibility matrix](https://github.com/citusdata/citus/blob/main/EXTENSION_COMPATIBILITY.md) in the Citus GitHub repository. Be sure to review the release notes and support details when using any of the available extensions alongside elastic clusters.

- question: Why isn't TimescaleDB available with elastic clusters?
answer: Elastic clusters make use of key low-level system hooks which conflict with the TimescaleDB extension. Fortunately, elastic clusters provide similar time-series capabilities. You can learn more about timeseries data in the [Citus documentation](https://docs.citusdata.com/en/stable/use_cases/timeseries.html).

- name: Migrations
questions:
- question: How can I migrate to/from elastic clusters?
answer: Currently, migrations to/from elastic clusters can be done with pg_dump, pg_restore, and pgcopydb. Any other tool working with standard PostgreSQL should work.
answer: Migrations to/from elastic clusters can be done with pg_dump, pg_restore, and pgcopydb. Any other tool working with standard PostgreSQL should work.

- question: Can I convert my existing Public Preview instance to General Availability (GA) elastic clusters?
answer: If you have created any elastic clusters during the Public Preview phase, you are required to re-create them once the feature becomes Generally Available. If this raises concerns, or if you need help determining whether your server meets the necessary requirements, please contact us by going to the Azure portal, selecting your Azure Postgres resource, and following the instructions in the banner.
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@mulander mulander Sep 26, 2025

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Not sure if it's not better to ask them to raise a support request? The banner doesn't show in all cases.

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@JaredMSFT JaredMSFT Sep 26, 2025

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I'm concerned raising a support incident will cause more complexity and hassle for the customer and for the customer support org. At least the banner instructs them to contact us directly. Can we determine why the banner does not show in all relevant cases?


- name: Networking
questions:
- question: Can I use PgBouncer for connection pooling with elastic clusters?
answer: Yes, you can use PgBouncer with elastic clusters. Port 6432 should be used for schema and node management operations, while port 8432 is load-balanced to PgBouncer instances running across all nodes in the cluster.
answer: Yes, PgBouncer is supported with elastic clusters. Port 6432 should be used for schema and node management operations, while port 8432 is load-balanced to PgBouncer instances running across all nodes in the cluster.

- question: Can I use virtual network (VNet) with elastic clusters?
answer: Currently, virtual network isn't supported during the preview.
- question: Can I use virtual network (VNet) injection with elastic clusters?
answer: Virtual network injection is not planned for elastic clusters. We recommend using Private Link Endpoints for any network isolation requirements.

- question: Are Private Domain Name System (DNS) Zones supported with elastic clusters?
answer: Currently, Private DNS Zones aren't supported during the preview.

- name: Storage
questions:
- question: Can I use customer-managed keys (CMK) for storage encryption?
answer: Currently, customer-managed keys aren't supported during the preview.
answer: Customer-managed keys are not currently supported during the preview, however they will be available in the Generally Available (GA) release.

- question: Is Storage Auto Scale available?
answer: Currently, Storage Auto Scale isn't supported during the preview.
answer: Storage Auto Scale is not available, however cluster storage size and throughput can be adjusted manually.

- name: Authentication
questions:
- question: Can I use Microsoft Entra ID authentication with elastic clusters?
answer: Currently, Microsoft Entra ID authentication isn't supported during the preview.
answer: Microsoft Entra ID authentication is supported for elastic clusters.

- name: Performance
questions:
- question: Can I use Query Performance Insights with elastic clusters?
answer: Currently, Query Performance Insights isn't supported during the preview.
answer: Query Performance Insights is not currently supported at this time.

- question: Can I use Automatic Index Tuning with elastic clusters?
answer: Currently, Automatic Index Tuning isn't supported during the preview.
answer: Automatic Index Tuning is not currently supported at this time.

- question: Can I use replicas with elastic clusters?
answer: Currently, replicas aren't supported during the preview.
answer: Besides supporting High Availability (HA), elastic clusters currently support the configuration of a single read-replica.