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```python
# AI Dev Tool: PostgreSQL Vector Search Extension with Hono Cloudflare Workers D1 Starter
# ==============================================================================
# This code asset provides a production-ready developer tool for building scalable
# and efficient vector search capabilities using PostgreSQL and Cloudflare Workers.

import os
import json
from typing import Dict, List
from honeypot import Honeypot
from cloudflare_worker import Worker
from psycopg2 import connect
from psycopg2.extras import DictCursor

# PostgreSQL Vector Search Extension Configuration
# ---------------------------------------------
POSTGRESQL_HOST = os.environ.get('POSTGRESQL_HOST')
POSTGRESQL_PORT = os.environ.get('POSTGRESQL_PORT')
POSTGRESQL_USER = os.environ.get('POSTGRESQL_USER')
POSTGRESQL_PASSWORD = os.environ.get('POSTGRESQL_PASSWORD')
POSTGRESQL_DB = os.environ.get('POSTGRESQL_DB')

# Hono Cloudflare Workers D1 Starter Configuration
# ---------------------------------------------
HONO_WORKER_SCRIPT = os.environ.get('HONO_WORKER_SCRIPT')
HONO_WORKER_ROUTE = os.environ.get('HONO_WORKER_ROUTE')

def create_postgresql_connection() -> connect:
    """
    Creates a connection to the PostgreSQL database.

Returns:
        connect: A connection object to the PostgreSQL database

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