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@@ -9,7 +9,7 @@ Postgres comes with built-in support for replication. If `pg_replicate` doesn't
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Replication is done through _publications_. A [publication](https://www.postgresql.org/docs/current/logical-replication-publication.html) is a set of changes. You can choose which tables and change events to include in a publication.
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Once a publication is created, it can be listened to by a subscriber. Subscriptions are handled using Postgres [replication slots](https://www.postgresql.org/docs/current/logical-replication-subscription.html). The exact connection parameters for the replication slot depend on your downstream subscriber. See your subscriber documentation for more details.
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Once a publication is created, a subscriber can listen to it. Postgres [replication slots](https://www.postgresql.org/docs/current/logical-replication-subscription.html) handle subscriptions. The exact connection parameters for the replication slot depend on your downstream subscriber. Read your subscriber documentation for more details.
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## Managing publications
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@@ -11,17 +11,19 @@ description: Replicate your Supabase database to external destinations
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</Admonition>
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Syncing requires a source and a destination. The source is your Supabase database. The destination is a third party. See the [supported destinations](#destinations).
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Syncing requires a source and a destination. The source is your Supabase database, defined in the [**Publications**](https://supabase.com/dashboard/project/_/database/publications) section of the dashboard.
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The destination is a third party location, defined in the [**Replication**](https://supabase.com/dashboard/project/_/database/replication) section of the dashboard. See the [supported destinations](#destinations).
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## Sources
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Choose what data to sync by creating a publication in your database. A publication is a set of changes, which can be filtered by table and change type.
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Choose what data to sync by creating a publication in your database. A publication is a set of changes, filtered by table and change type.
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### Managing publications
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1. Go to the [Database](https://supabase.com/dashboard/project/_/database/tables) page in the Dashboard.
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2. Click on **Publications** in the sidebar.
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3. Control which database events are sent by toggling **Insert**, **Update**, and **Delete**.
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3. Control which database events to send by toggling **Insert**, **Update**, and **Delete**.
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4. Control which tables broadcast changes by selecting **Source** and toggling each table.
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<video width="99%" muted playsInline controls={true}>
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@@ -41,7 +43,7 @@ Currently available destinations:
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#### Prerequisites
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Before setting up replication to BigQuery, you'll need:
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Before setting up replication to BigQuery, you need:
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1. A [Google Cloud Platform (GCP)](https://cloud.google.com/gcp) account
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2. A [BigQuery dataset](https://cloud.google.com/bigquery/docs/datasets-intro) in your GCP project
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@@ -49,28 +51,27 @@ Before setting up replication to BigQuery, you'll need:
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#### Configuring BigQuery replication
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1. Navigate to the Database section in your Supabase Dashboard and select the **Replication** tab.
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1. Navigate to the [Database](https://supabase.com/dashboard/project/_/database/tables) section in your Supabase Dashboard and select the **Replication** tab.
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2. Click **Add destination** to open the New Destination panel.
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3. Click **Enable replication**.
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4. Configure your replication settings:
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3. Click **Enable**.
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4. Configure the replication settings:
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- **Name**: Enter a descriptive name for your replication destination
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- **Publication**: Select an existing publication or create a new one
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- **Type**: Select "BigQuery" from the destination types
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- **Project Id**: Enter your GCP project ID
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- **Project's Dataset Id**: Enter the ID of your BigQuery dataset
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- **Project Id**: Enter the GCP project ID
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- **Project's Dataset Id**: Enter the ID of the BigQuery dataset
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- **Service Account Key**: Enter your GCP service account key
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5. Review the [Advanced Settings](#advanced-settings) if you need to customize the replication behavior.
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5. Review the [Advanced Settings](#advanced-settings) to change the limits for the replication.
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- **Max size**: Changes are sent in batches. Max size limits the size of an individual batch.
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- **Max fill seconds**: Number of seconds after which a batch should be sent, even if it hasn't reached the max size.
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- **Max staleness**: See BigQuery's [`max_staleness`](https://cloud.google.com/bigquery/docs/change-data-capture#manage_table_staleness) option
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6. Click **Create** to start the replication process.
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#### Advanced settings
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- **Max size**: Changes are sent in batches. Max size limits the size of an individual batch.
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- **Max fill seconds**: Number of seconds after which a batch should be sent, even if it hasn't reached the max size.
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- **Max staleness**: See BigQuery's [`max_staleness`](https://cloud.google.com/bigquery/docs/change-data-capture#manage_table_staleness) option
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## Monitoring replication
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After setting up replication, data will begin flowing within a few minutes. You can monitor the replication status and review any errors directly from the [Supabase Dashboard](https://supabase.com/dashboard/project/_/database/replication).
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After setting up replication, data begins flowing within a few minutes. You can monitor the replication status and review any errors directly from the [Supabase Dashboard](https://supabase.com/dashboard/project/_/database/replication) and clicking the **View status** button for a replication. In status view for the replication pipeline, you can also view logs by clicking the **View logs** button.
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## Limitations
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