Skip to content

fix: Document PostgreSQL replication parameters for WAL streaming #1531

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
lukekim merged 6 commits into from
Apr 20, 2026
+12 −0
Merged

fix: Document PostgreSQL replication parameters for WAL streaming #1531

Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
db83140
fix: Add nanosecond timestamp range limitation to MSSQL and Oracle ve…
Apr 18, 2026
4ead185
fix: Correct PostgreSQL accelerator connection pool parameter name an…
Apr 19, 2026
577c5dd
fix: Correct IMAP ssl_mode default from tls to auto
Apr 19, 2026
fb7b1cb
fix: Correct DynamoDB default time_format to include milliseconds
Apr 19, 2026
c46bbe2
fix: Document PostgreSQL replication parameters for WAL streaming
Apr 19, 2026
796cf5d
Merge branch 'trunk' into fix/docs-pg-replication-params
lukekim Apr 20, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 12 additions & 0 deletions website/docs/components/data-connectors/postgres/index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,18 @@ The connection to PostgreSQL can be configured by providing the following `param
| `pg_connection_pool_min_idle` | Optional. The minimum number of idle connections to keep open in the pool. Default is `1`. |
| `connection_pool_size` | Optional. The maximum number of connections created in the connection pool. Default is `5`. |

#### Replication parameters

The following parameters configure PostgreSQL [logical replication](https://www.postgresql.org/docs/current/logical-replication.html) (WAL streaming) when using `refresh_mode: changes`:

| Parameter Name | Description |
| ---------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `pg_replication_slot` | Optional. Name of the replication slot to create/reuse. Defaults to `spice_<dataset>_<dataset-hash>_<instance-hash>`. Each Spice replica MUST have its own unique slot. |
| `pg_publication` | Optional. Name of the publication to create/reuse. Defaults to `spice_<dataset>_<dataset-hash>_pub`. Shared across replicas for the same dataset. |
| `pg_replication_initial_snapshot` | Optional. Whether to take an initial snapshot of existing rows before streaming WAL changes. Default: `true`. |
| `pg_replication_temporary_slot` | Optional. If `true`, create a temporary replication slot that is dropped when the Spice process disconnects. Default: `false` (durable slot). |
| `pg_replication_status_interval` | Optional. How often to send StandbyStatusUpdate to Postgres (e.g. `10s`). Default: `10s`. |

## Types

The table below shows the PostgreSQL data types supported, along with the type mapping to Apache Arrow types in Spice.
Expand Down
Loading