Known limitations
This page describes known limitations and feature restrictions in Pinecone.
General
- Upserts
-
Pinecone is eventually consistent, so there can be a slight delay before upserted records are available to query.
After upserting records, use the
describe_index_stats
operation to check if the current vector count matches the number of records you expect, although this method may not work for pod-based indexes with multiple replicas. -
Only indexes using the dotproduct distance metric support querying sparse-dense vectors.
Upserting, updating, and fetching sparse-dense vectors in indexes with a different distance metric will succeed, but querying will return an error.
-
Indexes created before February 22, 2023 do not support sparse vectors.
-
- Metadata
- Null metadata values are not supported. Instead of setting a key to hold a null value, remove the key from the metadata payload.
Serverless indexes
Serverless indexes do not support the following features:
-
- Instead, you can delete records by ID prefix.
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- Because high-cardinality metadata in serverless indexes does not cause high memory utilization, this operation is not relevant.
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- Because serverless indexes scale automatically based on usage, this operation is not relevant
-
- This feature is available on AWS only.
Pod-based indexes
- Pod storage capacity
- Each p1 pod has enough capacity for 1M vectors with 768 dimensions.
- Each s1 pod has enough capacity for 5M vectors with 768 dimensions.
- Metadata
- Metadata with high cardinality, such as a unique value for every vector in a large index, uses more memory than expected and can cause the pods to become full.
- Collections
- You cannot query or write to a collection after its creation. For this reason, a collection only incurs storage costs.
- You can only perform operations on collections in the current Pinecone project.
- Sparse-dense vectors
- Only
s1
andp1
pod-based indexes using the dotproduct distance metric support sparse-dense vectors.
- Only
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