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fix ref to pg_stat_statements in readme #86

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10 changes: 5 additions & 5 deletions README.md
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Expand Up @@ -258,26 +258,26 @@ For Windsurf, the format in `mcp_config.json` is slightly different:

## Postgres Extension Installation (Optional)

To enable index tuning and comprehensive performance analysis you need to load the `pg_statements` and `hypopg` extensions on your database.
To enable index tuning and comprehensive performance analysis you need to load the `pg_stat_statements` and `hypopg` extensions on your database.

- The `pg_statements` extension allows Postgres MCP Pro to analyze query execution statistics.
- The `pg_stat_statements` extension allows Postgres MCP Pro to analyze query execution statistics.
For example, this allows it to understand which queries are running slow or consuming significant resources.
- The `hypopg` extension allows Postgres MCP Pro to simulate the behavior of the Postgres query planner after adding indexes.

### Installing extensions on AWS RDS, Azure SQL, or Google Cloud SQL

If your Postgres database is running on a cloud provider managed service, the `pg_statements` and `hypopg` extensions should already be available on the system.
If your Postgres database is running on a cloud provider managed service, the `pg_stat_statements` and `hypopg` extensions should already be available on the system.
In this case, you can just run `CREATE EXTENSION` commands using a role with sufficient privileges:

```sql
CREATE EXTENSION IF NOT EXISTS pg_statements;
CREATE EXTENSION IF NOT EXISTS pg_stat_statements;
CREATE EXTENSION IF NOT EXISTS hypopg;
```

### Installing extensions on self-managed Postgres

If you are managing your own Postgres installation, you may need to do additional work.
Before loading the `pg_statements` extension you must ensure that it is listed in the `shared_preload_libraries` in the Postgres configuration file.
Before loading the `pg_stat_statements` extension you must ensure that it is listed in the `shared_preload_libraries` in the Postgres configuration file.
The `hypopg` extension may also require additional system-level installation (e.g., via your package manager) because it does not always ship with Postgres.

## Usage Examples
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