This page shows you how to delete records from an index namespace.

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Delete records by ID

Since Pinecone records can always be efficiently accessed using their ID, deleting by ID is the most efficient way to remove specific records from a namespace.
To remove records from the default namespace, specify "__default__" as the namespace in your request.
# pip install "pinecone[grpc]"
from pinecone.grpc import PineconeGRPC as Pinecone

pc = Pinecone(api_key="YOUR_API_KEY")

# To get the unique host for an index, 
# see https://docs.pinecone.io/guides/manage-data/target-an-index
index = pc.Index(host="INDEX_HOST")

index.delete(ids=["id-1", "id-2"], namespace='example-namespace')

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Delete records by metadata

To delete records from a namespace based on their metadata values, pass a metadata filter expression to the delete operation. This deletes all records in the namespace that match the filter expression. For example, the following code deletes all records with a genre field set to documentary from namespace example-namespace: 
# pip install "pinecone[grpc]"
from pinecone.grpc import PineconeGRPC as Pinecone

pc = Pinecone(api_key="YOUR_API_KEY")

# To get the unique host for an index, 
# see https://docs.pinecone.io/guides/manage-data/target-an-index
index = pc.Index(host="INDEX_HOST")

index.delete(
    filter={
        "genre": {"$eq": "documentary"}
    },
    namespace="example-namespace" 
)

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Delete all records in a namespace

To delete all of the records in a namespace but not the namespace itself, provide a namespace parameter and specify the appropriate deleteAll parameter for your SDK. To target the default namespace, set namespace to "__default__". 
# pip install "pinecone[grpc]"
from pinecone.grpc import PineconeGRPC as Pinecone

pc = Pinecone(api_key="YOUR_API_KEY")

# To get the unique host for an index, 
# see https://docs.pinecone.io/guides/manage-data/target-an-index
index = pc.Index(host="INDEX_HOST")

index.delete(delete_all=True, namespace='example-namespace')

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Delete an entire namespace

To delete an entire namespace and all of its records, see Delete a namespace.

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Delete an entire index

To remove all records from an index, delete the index and recreate it.

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Data freshness

Pinecone is eventually consistent, so there can be a slight delay before new or changed records are visible to queries. You can view index stats to check data freshness.