Обновления и удаления в реальном времени

Handling Dynamic Vector Data

Why Real-time Changes Matter

Full Vector & Metadata Updates

Example: Replacing a Vector

from pinecone import Pinecone, Index
import os

# For this example, we'll use a mock class instead of actual Pinecone connection
# In a real app, replace with: 
# pc = Pinecone(api_key=os.environ.get("PINECONE_API_KEY"), environment=os.environ.get("PINECONE_ENVIRONMENT"))
# index = pc.Index("your-index-name")

class MockPineconeIndex:
    def upsert(self, vectors):
        print(f"Upserting vectors: {vectors}")

index = MockPineconeIndex() 

# Assume 'product-123' already exists with an old vector and metadata
print("--- Before Update (Conceptual) ---")
print("Vector 'product-123' has old values and metadata.")

# New vector values and metadata for 'product-123'
new_vector_values = [0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2] # Example 8-dim vector
new_metadata = {"category": "electronics", "price": 129.99, "status": "updated"}

# Use upsert to fully replace the vector and metadata for 'product-123'
index.upsert(
    vectors=[
        {"id": "product-123", "values": new_vector_values, "metadata": new_metadata}
    ]
)

print("\n--- After Update (Conceptual) ---")
print("Vector 'product-123' now has new values and metadata, replacing old ones.")

Partial Updates with `update()`

Example: Updating Metadata Only

from pinecone import Pinecone, Index
import os

# Mock class for Pinecone's update method
class MockPineconeIndexUpdate:
    def update(self, id, values=None, set_metadata=None):
        print(f"Updating vector ID: {id}")
        if values: print(f"  New values provided (vector will be replaced): {values}")
        if set_metadata: print(f"  Setting metadata: {set_metadata}")

index_update = MockPineconeIndexUpdate() # Replace with pc.Index("your-index-name")

# Assume 'product-456' exists with vector and metadata like {'stock': 10, 'color': 'blue'}
print("--- Before Metadata Update (Conceptual) ---")
print("Vector 'product-456' has existing metadata.")

# Update only the stock count for 'product-456'
updated_metadata = {"stock": 5, "last_checked": "2023-10-27"}

index_update.update(id="product-456", set_metadata=updated_metadata)

print("\n--- After Metadata Update (Conceptual) ---")
print("Vector 'product-456' now has updated stock and last_checked metadata. Other metadata and vector values are unchanged.")

Deleting Vectors in Pinecone

Example: Deleting a Single Vector

from pinecone import Pinecone, Index
import os

# Mock class for Pinecone's delete method
class MockPineconeIndexDelete:
    def delete(self, ids=None, delete_all=False, filter=None):
        if ids: print(f"Deleting vectors with IDs: {ids}")
        elif delete_all: print("Deleting all vectors.")
        elif filter: print(f"Deleting vectors with filter: {filter}")

index_delete = MockPineconeIndexDelete() # Replace with pc.Index("your-index-name")

# Assume 'user-profile-789' exists in the index
print("--- Before Deletion (Conceptual) ---")
print("Vector 'user-profile-789' is present.")

# Delete a single vector by its ID
index_delete.delete(ids=["user-profile-789"])

print("\n--- After Deletion (Conceptual) ---")
print("Vector 'user-profile-789' has been removed from the index.")

Deleting Many Vectors by Filter

Example: Deleting with Filters

from pinecone import Pinecone, Index
import os

# Mock class for Pinecone's delete method
class MockPineconeIndexDelete:
    def delete(self, ids=None, delete_all=False, filter=None):
        if ids: print(f"Deleting vectors with IDs: {ids}")
        elif delete_all: print("Deleting all vectors.")
        elif filter: print(f"Deleting vectors with filter: {filter}")

index_delete = MockPineconeIndexDelete() # Replace with pc.Index("your-index-name")

# Assume several products exist, some with 'status': 'out_of_stock'
print("--- Before Filtered Deletion (Conceptual) ---")
print("Vectors for products with status 'out_of_stock' are present.")

# Delete all vectors where the 'status' metadata is 'out_of_stock'
index_delete.delete(filter={
    "status": "out_of_stock"
})

print("\n--- After Filtered Deletion (Conceptual) ---")
print("All vectors for 'out_of_stock' products have been removed.")

Check Your Understanding

Recap & Next Steps