genai-toolbox/docs/en/resources/sources/postgres.md at 01712284b480774ffa68930affae290ee2e3fcfd

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Files

Sri Varshitha 71f360d315 feat(tools/postgres-list-tables): Add new tool postgres source (#1284 )

## Description
---
This pull request introduces a new custom tool kind
`postgres-list-tables` that allows users to list tables within a
Postgres database.

### Example Configuration

```yaml
tools:
  postgres_list_tables:
    kind: postgres-list-tables
    source: postgres-source
    description: Use this tool to retrieve schema information for all or specified tables. Output format can be simple (only table names) or detailed.
```

### Example Request
``` 
curl -X POST http://127.0.0.1:5000/api/tool/postgres_list_tables/invoke \
-H "Content-Type: application/json" \
-d '{
    "table_names": "users",
    "output_format": "simple"
}'
```

## PR Checklist
---
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed

[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [ ] Make sure to open an issue as a

[bug/issue](https://github.com/googleapis/langchain-google-alloydb-pg-python/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
  designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change

---------

Co-authored-by: Averi Kitsch <akitsch@google.com>

2025-09-11 15:13:09 +05:30

2.6 KiB

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title, type, weight, description

title	type	weight	description
PostgreSQL	docs	1	PostgreSQL is a powerful, open source object-relational database.

About

PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

Available Tools

postgres-sql
Execute SQL queries as prepared statements in PostgreSQL.
postgres-execute-sql
Run parameterized SQL statements in PostgreSQL.
postgres-list-tables
List tables in a PostgreSQL database.

Pre-built Configurations

PostgreSQL using MCP
Connect your IDE to PostgreSQL using Toolbox.

Requirements

Database User

This source only uses standard authentication. You will need to create a PostgreSQL user to login to the database with.

Example

sources:
    my-pg-source:
        kind: postgres
        host: 127.0.0.1
        port: 5432
        database: my_db
        user: ${USER_NAME}
        password: ${PASSWORD}

{{< notice tip >}} Use environment variable replacement with the format ${ENV_NAME} instead of hardcoding your secrets into the configuration file. {{< /notice >}}

Reference

field	type	required	description
kind	string	true	Must be "postgres".
host	string	true	IP address to connect to (e.g. "127.0.0.1")
port	string	true	Port to connect to (e.g. "5432")
database	string	true	Name of the Postgres database to connect to (e.g. "my_db").
user	string	true	Name of the Postgres user to connect as (e.g. "my-pg-user").
password	string	true	Password of the Postgres user (e.g. "my-password").
queryParams	map[string]string	false	Raw query to be added to the db connection string.

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