Vector similarity search
Search embeddings by distance; record required extensions or search services.
Yes Documented within scope Partial Limited form of the feature No Explicit evidence of absence Unknown No evidence recorded. These are support assessments, not quality scores or runtime verification.
| Product | Support | Implementation & evidence | Screenshots |
|---|---|---|---|
| P+PostgreSQL + pgvectorComposition | Yes | Supports exact vector-distance search. Documented for this target; no runtime tests recorded. | |
| QQdrantEngine | Yes | Searches dense, sparse and multi-vector records. Documented for this target; no runtime tests recorded. | |
| NPNeon PostgresManaged service | Yes | Supports vector similarity with pgvector enabled. Documented for this target; no runtime tests recorded. | |
| MAMongoDB AtlasManaged service | Yes | Searches vector embeddings alongside document data. Requires a supported cluster version and vector-search index. | |
| PPineconeManaged service | Yes | Retrieves records by vector similarity. Documented for this target; no runtime tests recorded. | |
| PPostgreSQLEngine | Unknown | No evidence recorded. This does not mean unsupported. | |
| SSQLiteEngine | Unknown | No evidence recorded. This does not mean unsupported. | |
| MCMongoDB CommunityEngine | Unknown | No evidence recorded. This does not mean unsupported. | |
| CDCloudflare D1Managed service | Unknown | No evidence recorded. This does not mean unsupported. | |
| DODurable Objects + SQLiteComposition | Unknown | No evidence recorded. This does not mean unsupported. |