{
  "schema": "kallipolis.resource-quality.v1",
  "id": "resource.infrastructure.postgresql-current",
  "version": "1.0.0",
  "title": "PostgreSQL current data infrastructure boundary",
  "summary": "Official-source relational transaction, authentication, read/write, version, and deployment boundaries for PostgreSQL-backed information services.",
  "content": {
    "kind": "infrastructure-boundary",
    "facts": [
      {
        "id": "fact.postgresql.current-docs.model",
        "statement": "PostgreSQL publishes versioned manuals and identifies PostgreSQL 18 as the current supported manual while separately listing beta and archived versions.",
        "normativeLevel": "informative",
        "sourceIds": [
          "source.postgresql.current-docs"
        ]
      },
      {
        "id": "fact.postgresql.current-docs.read",
        "statement": "SQL queries and transaction semantics are versioned behavior; a connector must bind its claims and tests to the selected server and manual version.",
        "normativeLevel": "informative",
        "sourceIds": [
          "source.postgresql.current-docs"
        ]
      },
      {
        "id": "fact.postgresql.current-docs.write",
        "statement": "Writes occur within transaction semantics and still require database, schema, table, row, and operation privileges configured by the operator.",
        "normativeLevel": "informative",
        "sourceIds": [
          "source.postgresql.current-docs"
        ]
      },
      {
        "id": "fact.postgresql.current-docs.boundary",
        "statement": "Documentation availability does not create a database, grant authentication, authorize a mutation, or prove durability, replication, backup, or query success.",
        "normativeLevel": "informative",
        "sourceIds": [
          "source.postgresql.current-docs"
        ]
      }
    ]
  },
  "language": "en",
  "category": "data-knowledge-infrastructure",
  "state": "prepared",
  "canonicalUrl": "https://platoskallipolis.com/resources/data-knowledge-infrastructure/postgresql-current.json",
  "contentHash": "sha256:e56c2621ed699eccaf30911525a538e8b8066efc9cb1f9b8f16153d938e0267b",
  "owner": {
    "id": "platos-kallipolis",
    "name": "Plato's Kallipolis",
    "type": "organization",
    "accountabilityUrl": "https://platoskallipolis.com/about"
  },
  "access": {
    "mode": "public",
    "url": "https://platoskallipolis.com/resources/data-knowledge-infrastructure/postgresql-current.json",
    "authentication": "none",
    "robotsAllowed": true
  },
  "provenance": {
    "method": "primary-source",
    "sources": [
      {
        "id": "source.postgresql.current-docs",
        "url": "https://www.postgresql.org/docs/",
        "title": "PostgreSQL Documentation",
        "publisher": "PostgreSQL Global Development Group",
        "observedAt": "2026-08-27T01:40:00Z"
      }
    ]
  },
  "observedAt": "2026-08-27T01:40:00Z",
  "freshness": {
    "policy": "max-age",
    "state": "current",
    "nextReviewAt": "2026-09-03T01:40:00Z",
    "maxAgeSeconds": 604800
  },
  "license": {
    "id": "source-terms-apply",
    "url": "https://www.postgresql.org/about/licence/",
    "redistributionAllowed": false
  },
  "evidence": [
    {
      "id": "evidence.postgresql.current-docs",
      "type": "source-claim",
      "url": "https://www.postgresql.org/docs/",
      "observedAt": "2026-08-27T01:40:00Z"
    }
  ]
}