PostgreSQL
↗Relational SQL engine with JSON types and extensibility.
Operating boundary
Operator manages deployment, backups and upgrades. This target excludes extensions.
SPACE 002 / DATABASES & MANAGED STORAGE
Where does your data live?
Relational, document, and vector systems. Compare the engine, the service, and the work you still own.
10targets · 17 dimensions
10 matching targets. Models overlap; JSON fields alone do not make a document database. Source access applies to this target, not every component of its hosted service.
SQLite
↗SQL storage embedded in the application process.
Operating boundary
Application owns the database file, lifecycle and backup procedure; no separate database server.
MongoDB Community
↗Document engine with transactions, replication and sharding.
Operating boundary
Operator manages the deployment. This target does not include an Atlas service or configured vector-search component.
PostgreSQL + pgvector
↗Vector retrieval alongside relational application data.
Operating boundary
PostgreSQL plus an installed and enabled pgvector extension; operator manages both.
Qdrant
↗Vector search engine with structured payload filtering.
Operating boundary
Self-managed server deployment; Qdrant Cloud and Edge are outside this target.
Cloudflare D1
↗Managed SQLite-compatible SQL with a Workers and HTTP interface.
Operating boundary
Database is a managed service separate from Worker application compute; do not assume arbitrary SQLite extensions.
Durable Objects + SQLite
↗Per-object SQL storage colocated with application logic.
Operating boundary
Each object owns private storage. Application implements Worker routing and cross-object coordination.
Neon Postgres
↗Managed Postgres with branching and optional pgvector.
Operating boundary
Neon hosted Postgres; vector claims require enabling pgvector per database. Other backend services are excluded.
MongoDB Atlas
↗Managed document database with a configurable vector-search service.
Operating boundary
Atlas cluster plus configured search indexes; region, cluster type and search resources must be specified.
Pinecone
↗Hosted vector retrieval with metadata and namespace organization.
Operating boundary
Hosted index and namespace configuration; attached metadata is not classified as a general document database.
Public sources checked 14 September 2026. Documentation research only; no database workloads or independent reproductions have been executed.