redshift_list_tables
Retrieve all table names from a specified schema in Amazon Redshift to explore database structure and identify available data tables.
Instructions
List all tables in a specific schema.
Args:
schema: The schema name (default: "public")
Returns:
JSON list of table namesInput Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| schema | No | public |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |
Implementation Reference
- redshift_mcp_server.py:77-95 (handler)The core handler implementation for the 'redshift_list_tables' MCP tool. Decorated with @mcp.tool() for registration, defines input schema via type hints and docstring, constructs SQL to list tables in the given schema, and executes via 'redshift_query' helper.
@mcp.tool() def redshift_list_tables(schema: str = "public") -> str: """ List all tables in a specific schema. Args: schema: The schema name (default: "public") Returns: JSON list of table names """ sql = f""" SELECT table_name FROM information_schema.tables WHERE table_schema = '{schema}' AND table_type = 'BASE TABLE' """ return redshift_query(sql) - redshift_mcp_server.py:78-87 (schema)Input/output schema definition for the tool via function signature (schema: str = 'public') and docstring.
def redshift_list_tables(schema: str = "public") -> str: """ List all tables in a specific schema. Args: schema: The schema name (default: "public") Returns: JSON list of table names """ - redshift_mcp_server.py:59-76 (helper)Helper tool 'redshift_query' used by 'redshift_list_tables' to execute the generated SQL and return JSON results.
@mcp.tool() def redshift_query(sql: str) -> str: """ Execute a SQL query on Redshift and return results as JSON. Args: sql: The SQL query to execute Returns: JSON string of the query results or error message """ try: with get_connection() as conn: df = pd.read_sql(sql, conn) return df.to_json(orient="records", indent=2) except Exception as e: return f"Error executing query: {str(e)}" - redshift_mcp_server.py:32-56 (helper)Supporting get_connection function used indirectly via redshift_query for database connectivity.
def get_connection(): """Create a connection to Redshift or local Postgres.""" try: # If host is localhost and port is 5432, assume local Postgres for testing if REDSHIFT_HOST == "localhost" and REDSHIFT_PORT == 5432: import psycopg2 return psycopg2.connect( host=REDSHIFT_HOST, port=REDSHIFT_PORT, database=REDSHIFT_DATABASE, user=REDSHIFT_USER, password=REDSHIFT_PASSWORD ) else: return redshift_connector.connect( host=REDSHIFT_HOST, port=REDSHIFT_PORT, database=REDSHIFT_DATABASE, user=REDSHIFT_USER, password=REDSHIFT_PASSWORD ) except Exception as e: logger.error(f"Connection error: {e}") raise