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mosabua merged 1 commit into from
Aug 21, 2023
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Document postgresql.include-system-tables config property #18574

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15 changes: 15 additions & 0 deletions docs/src/main/sphinx/connector/postgresql.md
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Expand Up @@ -51,6 +51,21 @@ determine the user credentials for the connection, often a service user. You can
use {doc}`secrets </security/secrets>` to avoid actual values in the catalog
properties files.

### Access to system tables

The PostgreSQL connector supports reading [PostgreSQ catalog
tables](https://www.postgresql.org/docs/current/catalogs.html), such as
`pg_namespace`. The functionality is turned off by default, and can be enabled
using the `postgresql.include-system-tables` configuration property.

You can see more details in the `pg_catalog` schema in the `example` catalog,
for example about the `pg_namespace` system table:

```sql
SHOW TABLES FROM example.pg_catalog;
SELECT * FROM example.pg_catalog.pg_namespace;
```

(postgresql-tls)=

### Connection security
Expand Down