{
  "schema": 1,
  "sqlstate": "08000",
  "condition_name": "connection_exception",
  "sources": [
    {
      "id": "src.errcodes.18.6",
      "kind": "upstream_source",
      "source_role": "condition_definition",
      "tag": "REL_18_6",
      "commit": "724edf9bde9d356724ad384a2e196edc3c9f80f7",
      "path": "src/backend/utils/errcodes.txt",
      "sha256": "6e8de346643ba84aa3c9c6a73360acfc7b2dfb89162c06c08ce9bf5bcd5bbcba",
      "url": "https://github.com/postgres/postgres/blob/724edf9bde9d356724ad384a2e196edc3c9f80f7/src/backend/utils/errcodes.txt"
    },
    {
      "id": "src.calls.REL_18_6",
      "kind": "local_artifact",
      "source_role": "source_call_scan",
      "sha256": "9ee8a0e81d8f0825c5c1ae45583439859a26e602bdd4ce2f2a62aa278867ccbf",
      "tag": "REL_18_6"
    },
    {
      "id": "src.calls.REL_10_23",
      "kind": "local_artifact",
      "source_role": "source_call_scan",
      "sha256": "00d16d3eb01b71ccf1b245c8f3102f9d0ec9f36fb02777b8dd1b99fcb263040c",
      "tag": "REL_10_23"
    },
    {
      "id": "src.fdw-connection.18.6",
      "kind": "upstream_source",
      "source_role": "source_path",
      "tag": "REL_18_6",
      "commit": "724edf9bde9d356724ad384a2e196edc3c9f80f7",
      "path": "contrib/postgres_fdw/connection.c",
      "sha256": "67fc002657f2c7df6d93cbf99c933cbc103907d1857ed77aedbb85099ea4dda0",
      "url": "https://github.com/postgres/postgres/blob/724edf9bde9d356724ad384a2e196edc3c9f80f7/contrib/postgres_fdw/connection.c#L1369-L1372"
    },
    {
      "id": "src.fdw-connection.10.23",
      "kind": "upstream_source",
      "source_role": "source_path",
      "tag": "REL_10_23",
      "commit": "02991e79f8f58bc208f05dcc8af0c62dbe0a6ea4",
      "path": "contrib/postgres_fdw/connection.c",
      "sha256": "8a8b053e4ef599d95d0709744aa1dd5bb20047af9dc29b3f42cfba5785e525c5",
      "url": "https://github.com/postgres/postgres/blob/02991e79f8f58bc208f05dcc8af0c62dbe0a6ea4/contrib/postgres_fdw/connection.c#L1033-L1036"
    },
    {
      "id": "manifest.08000",
      "kind": "local_artifact",
      "source_role": "case_manifest",
      "sha256": "db1a8c9acb66b739158ea9cf305f3e31228e0d214a6a43cfcdbc013667cbc5e2",
      "tag": "workspace"
    }
  ],
  "claims": [
    {
      "id": "identity.class-and-condition",
      "statement": "08000 is the connection_exception condition in Class 08.",
      "method": "Read the fixed errcodes.txt definition and the locked catalogue metadata.",
      "limits": "Directory identity does not identify every backend or client path.",
      "sources": [
        "src.errcodes.18.6"
      ]
    },
    {
      "id": "mechanism.source-boundary",
      "statement": "The source scan resolves this class code to `postgres_fdw` abort-cleanup handling when a foreign connection cannot be discarded cleanly. It is source-path evidence, not a general socket failure case.",
      "method": "Trace the fixed REL_18_6 and REL_10_23 source call scans and the recorded source paths.",
      "limits": "This is a bounded source claim; it is not an observed natural SQLSTATE case.",
      "sources": [
        "src.fdw-connection.18.6",
        "src.fdw-connection.10.23"
      ]
    },
    {
      "id": "versions.catalogue-boundary",
      "statement": "The locked catalogue records 08000 in the listed snapshots; this source-only page compares the fixed REL_18_6 and REL_10_23 postgres_fdw source/call records and has no selected natural runtime.",
      "method": "Read the generated facts block and fixed postgres_fdw source/call records; no runtime target summaries are used for this page.",
      "limits": "Presence in a definition file is not an exact behavioral introduction, and the fixed source records do not prove every intermediate release or ordinary client connection failure.",
      "sources": [
        "src.errcodes.18.6",
        "src.calls.REL_18_6",
        "src.calls.REL_10_23"
      ]
    }
  ],
  "messages": [
    {
      "id": "message.fdw-abort-cleanup",
      "sqlstate": "08000",
      "severity_source": "explicit ERROR",
      "sources": [
        "src.fdw-connection.18.6",
        "src.fdw-connection.10.23"
      ],
      "primary_template": "connection to server \"%s\" cannot be used due to abort cleanup failure",
      "limits": "The foreign server name is dynamic; this fixed postgres_fdw branch is not a generic client socket refusal."
    }
  ],
  "usage_evidence": [
    {
      "scope": "SQLSTATE directory identity",
      "status": "definition_only",
      "evidence_ids": [
        "identity.class-and-condition",
        "src.errcodes.18.6"
      ]
    },
    {
      "scope": "Fixed source or definition boundary",
      "status": "source_path_confirmed",
      "evidence_ids": [
        "mechanism.source-boundary",
        "src.fdw-connection.18.6",
        "src.fdw-connection.10.23",
        "message.fdw-abort-cleanup"
      ]
    },
    {
      "scope": "Locked release presence and bounded version comparison",
      "status": "definition_only",
      "evidence_ids": [
        "versions.catalogue-boundary",
        "src.errcodes.18.6"
      ]
    }
  ],
  "runtime": []
}