> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-mintlify-8c05c8a2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
> Set up Azure Flexible Server for Postgres as a source for ClickPipes
# Azure flexible server for Postgres source setup guide
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ClickPipes supports Postgres version 12 and later.
Enable logical replication
**You don't need** to follow the below steps if `wal_level` is set to `logical`. This setting should mostly be pre-configured if you're migrating from another data replication tool.
1. Click on the **Server parameters** section
2. Edit the `wal_level` to `logical`
3. This change would require a server restart. So restart when requested.
Creating ClickPipes users and granting permissions
Connect to your Azure Flexible Server Postgres through the admin user and run the below commands:
1. Create a dedicated user for ClickPipes.
```sql theme={null}
CREATE USER clickpipes_user PASSWORD 'some-password';
```
2. Grant schema-level, read-only access to the user you created in the previous step. The following example shows permissions for the `public` schema. Repeat these commands for each schema containing tables you want to replicate:
```sql theme={null}
GRANT USAGE ON SCHEMA "public" TO clickpipes_user;
GRANT SELECT ON ALL TABLES IN SCHEMA "public" TO clickpipes_user;
ALTER DEFAULT PRIVILEGES IN SCHEMA "public" GRANT SELECT ON TABLES TO clickpipes_user;
```
3. Grant replication privileges to the user:
```sql theme={null}
ALTER USER clickpipes_user WITH REPLICATION;
```
4. Create a [publication](https://www.postgresql.org/docs/current/logical-replication-publication.html) with the tables you want to replicate. We strongly recommend only including the tables you need in the publication to avoid performance overhead.
Any table included in the publication must either have a **primary key** defined *or* have its **replica identity** configured to `FULL`. See the [Postgres FAQs](/integrations/clickpipes/postgres/faq#how-should-i-scope-my-publications-when-setting-up-replication) for guidance on scoping.
* To create a publication for specific tables:
```sql theme={null}
CREATE PUBLICATION clickpipes FOR TABLE table_to_replicate, table_to_replicate2;
```
* To create a publication for all tables in a specific schema:
```sql theme={null}
CREATE PUBLICATION clickpipes FOR TABLES IN SCHEMA "public";
```
The `clickpipes` publication will contain the set of change events generated from the specified tables, and will later be used to ingest the replication stream.
Add ClickPipes IPs to Firewall
Please follow the below steps to add [ClickPipes IPs](/integrations/clickpipes/home#list-of-static-ips) to your network.
1. Go to the **Networking** tab and add the [ClickPipes IPs](/integrations/clickpipes/home#list-of-static-ips) to the Firewall
of your Azure Flexible Server Postgres OR the Jump Server/Bastion if you're using SSH tunneling.
What's next?
You can now [create your ClickPipe](/integrations/clickpipes/postgres/index) and start ingesting data from your Postgres instance into ClickHouse Cloud.
Make sure to note down the connection details you used while setting up your Postgres instance as you will need them during the ClickPipe creation process.