vector
collection.create
Create a vector collection with a dimension and metric.
strata vector collection createdb.vectors.create_collection(name: 'str', dimension: 'int', *, metric: 'str' = 'cosine') -> 'Any'wire vector_create_collection
Creates a collection for dense vectors. The dimension and metric become part of the collection contract for future upserts and queries.
Successful mutations return an acknowledgement of the outcome: for a state-changing write, the affected target with the mutation effect and commit facts; for mutations that produce a domain result (such as a branch or a promotion outcome), that result object.
To see the complete help for this command, run:
strata vector collection create --helphelp(db.vectors.create_collection)
Example
Create a vector collection, then confirm its dimension.
strata vector collection create docs 3 --metric cosinestrata vector collection stats docs
_ = db.vectors.create_collection("docs", 3, metric="cosine")db.vectors.stats("docs").dimension
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| collection | string | yes | Collection name. |
| dimension | integer | yes | Embedding dimension. |
| metric | VectorDistanceMetric | yes | Distance metric.one of: cosine, euclidean, dot_product |
| branch | string or null | no | Target branch. Defaults to the executor handle branch. |
| space | string or null | no | Target product space. Defaults to `"default"`. |
Returns
MutationAck<VectorCollectionCreate>
- dataobject
Shared pagination continuation facts.
- typestring
Errors
Recover by code. Retry policy and commit outcome come from the shipped error registry.
| Code | Retry | Commit outcome |
|---|---|---|
| failed_precondition.engine.runtime_closed | never | not_started |
| not_found.engine.branch | never | not_applicable |
| invalid_argument.engine.product_space | never | not_started |
| invalid_argument.engine.vector_collection | never | not_started |
| invalid_argument.engine.vector_key | never | not_started |
| not_found.engine.vector_collection | never | not_applicable |
| invalid_argument.engine.vector_dimension | never | not_started |
| invalid_argument.executor.vector_dimension | never | not_started |