PostgreSQL
A relational database. For CAP it is the production database when the answer is not HANA, reached through an adapter that translates CDS queries into its SQL.
Where it sits
Used by
Dependency relationship.
Dependency relationship.
Optionally used: a high availability setup; the requirement is marked Optional; Required for HA the database an Edge Integration Cell uses at version 15, with password authentication and at least 1 CPU and 2 GiB
Dependency relationship.
Optionally used: When store: "postgres" is selected. Cache storage through @keyv/postgres; other store modes do not require this backend.
Functional boundary
When user-dependent responses are cached without user-aware or explicit operation keys, or translated responses share keys across locales. These cases require key isolation; locale-aware keys are off by default.
Dependency relationship.
RepositoryThe declared repository is archived
Dependency relationship.
Required dependency. the database backend its locks are taken in, used only on the DEFAULT connection
LicenceNeither the package manifest nor the repository tree declares a licence
Optionally used: the PostgreSQL backend is chosen the database behind the eleven-method seam when PostgreSQL is chosen; a release carries a postgres.yml compose file that starts one
Functional boundary
Not a system to run a business application on: there is no business application in it, and what it implements of the language, the dictionary and Gateway is a stated subset of each. It is a clean-room reimplementation of the `/IWBEP/` interfaces that bundles no SAP source and no standard DDIC, so a service that reads standard objects has nothing to read, and `ANORMALIES.md` records every place the runtime differs from SAP before any workaround is written.
Dependency relationship.
Connected from
data, SOCKS5, TCP, outbound. Opening the database connection of a CAP application to a PostgreSQL server in a private network, through the Connectivity service's SOCKS5 endpoint and a TCP mapping in the Cloud Connector.
data. keeps application and operational data, isolated per tenant by schema
On BTP
A managed PostgreSQLPostgreSQLA relational database. For CAP it is the production database when the answer is not HANA, reached through an adapter that translates CDS queries into its SQL. from the underlying hyperscaler — AWS, Azure, Google Cloud or Alicloud — consumed through a BTP service binding.
Details
Graph
For your agent
- Ref
external:postgresql- JSON
- /externals/postgresql.json
- MCP
- Connecting an agent