---
title: "postgres-list-tables"
type: docs
weight: 1
description: >
  The "postgres-list-tables" tool lists schema information for all or specified
  tables in a Postgres database.
aliases:
- /resources/tools/postgres-list-tables
---

## About

The `postgres-list-tables` tool retrieves schema information for all or
specified tables in a Postgres database. It's compatible with any of the
following sources:

- [alloydb-postgres](../../sources/alloydb-pg.md)
- [cloud-sql-postgres](../../sources/cloud-sql-pg.md)
- [postgres](../../sources/postgres.md)

`postgres-list-tables` lists detailed schema information (object type, columns,
constraints, indexes, triggers, owner, comment) as JSON for user-created tables
(ordinary or partitioned). The tool takes the following input parameters: *
 `table_names` (optional): Filters by a comma-separated list of names. By
 default, it lists all tables in user schemas.* `output_format` (optional):
 Indicate the output format of table schema. `simple` will return only the
 table names, `detailed` will return the full table information. Default:
 `detailed`.

## Example

```yaml
kind: tools
name: postgres_list_tables
type: 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.
```

## Reference

| **field**   | **type** | **required** | **description**                                      |
|-------------|:--------:|:------------:|------------------------------------------------------|
| type        |  string  |     true     | Must be "postgres-list-tables".                      |
| source      |  string  |     true     | Name of the source the SQL should execute on.        |
| description |  string  |     true     | Description of the tool that is passed to the agent. |
