Replace Integer IDs with UUIDs for Enhanced Scalability and Security

[dreaminglucid]

The current implementation uses auto-incrementing integers as primary keys for the tables. This approach might lead to several challenges, especially in distributed systems.

Proposed Changes:

• Replace integer IDs with UUIDs in the schema.
• Update the insertion logic to generate UUIDs if not provided.

Benefits:

• Global Uniqueness: Ensures that IDs are unique across different parts of the system, whether within a single application or across distributed systems.
• Scalability: UUIDs facilitate handling large-scale systems, from mobile apps to distributed databases, without requiring centralized coordination.
• Security: Non-sequential UUIDs enhance security by preventing enumeration attacks.
• Flexibility in Migrations: UUIDs remain consistent across different databases and platforms, aiding in data migration and synchronization.

Example Modification:

# Table creation
def ensure_table_exists(self, category):
    table_name = self._table_name(category)
    self.cur.execute(
        f"""
        CREATE TABLE IF NOT EXISTS {table_name} (
            id UUID PRIMARY KEY DEFAULT uuid-ossp.uuid_generate_v4(),
            document TEXT NOT NULL,
            embedding VECTOR(384)
        )
    """
    )
    self.connection.commit()

# Insertion
def insert_memory(self, category, document, metadata={}, embedding=None, id=None):
    #...
    if id is None:
        id = uuid.uuid4()
    #...

Dependencies:

• Include the uuid library in the code.
• Ensure the PostgreSQL server has the uuid-ossp extension enabled.

Please review and let me know your thoughts on implementing this enhancement.