{
  "schema": 1,
  "sqlstate": "22005",
  "condition_name": "error_in_assignment",
  "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#L169",
      "lines": "169"
    },
    {
      "id": "src.calls.REL_18_6",
      "kind": "local_artifact",
      "source_role": "source_call_scan",
      "sha256": "9ee8a0e81d8f0825c5c1ae45583439859a26e602bdd4ce2f2a62aa278867ccbf"
    },
    {
      "id": "src.path.plpgsql-constant",
      "kind": "upstream_source",
      "source_role": "source_guard",
      "tag": "REL_18_6",
      "commit": "724edf9bde9d356724ad384a2e196edc3c9f80f7",
      "path": "src/pl/plpgsql/src/pl_exec.c",
      "sha256": "0df3c70a6bccf6dddf443fb99e152a16a67009827c44a820597e98e585cb8b20",
      "url": "https://github.com/postgres/postgres/blob/724edf9bde9d356724ad384a2e196edc3c9f80f7/src/pl/plpgsql/src/pl_exec.c#L8565-L8582",
      "lines": "8565-8582"
    }
  ],
  "claims": [
    {
      "id": "identity",
      "statement": "22005 is error_in_assignment in SQLSTATE Class 22.",
      "sources": [
        "src.errcodes.18.6"
      ],
      "method": "Read fixed definition."
    },
    {
      "id": "mechanism.plpgsql-constant",
      "statement": "PL/pgSQL assignment checking rejects writes to a variable marked CONSTANT and reports the variable name.",
      "sources": [
        "src.path.plpgsql-constant"
      ],
      "method": "Read exec_check_assignable and its complete CONSTANT branch.",
      "limits": "This does not classify every type conversion or target-column assignment error."
    },
    {
      "id": "history",
      "statement": "The locked catalogue records 22005 from 7.4 without proving an exact implementation introduction date.",
      "sources": [
        "src.errcodes.18.6"
      ],
      "method": "Use catalogue boundary."
    }
  ],
  "messages": [
    {
      "id": "message.constant",
      "sqlstate": "22005",
      "primary_template": "variable \"%s\" is declared CONSTANT",
      "severity_source": "ERROR",
      "sources": [
        "src.path.plpgsql-constant"
      ]
    }
  ],
  "usage_evidence": [
    {
      "scope": "definition",
      "status": "definition_only",
      "evidence_ids": [
        "identity"
      ]
    },
    {
      "scope": "fixed-source-path",
      "status": "source_path_confirmed",
      "evidence_ids": [
        "mechanism.plpgsql-constant"
      ]
    },
    {
      "scope": "history",
      "status": "unknown",
      "evidence_ids": [
        "history"
      ]
    },
    {
      "scope": "natural-runtime",
      "status": "unknown",
      "evidence_ids": [
        "mechanism.plpgsql-constant"
      ]
    }
  ],
  "runtime": []
}