Metadata filtering
Restrict vector results using structured fields.
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 | Combines vector queries with SQL WHERE filtering. Approximate-index filtering can reduce returned results; tune scan settings and verify recall. | |
| QQdrantEngine | Yes | Filters vector searches by JSON payload fields. Documented for this target; no runtime tests recorded. | |
| MAMongoDB AtlasManaged service | Yes | Filters vector queries using collection fields. Documented for this target; no runtime tests recorded. | |
| PPineconeManaged service | Yes | Filters vector retrieval using record metadata. 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. | |
| NPNeon PostgresManaged service | Unknown | No evidence recorded. This does not mean unsupported. |