{
  "schema": 1,
  "sqlstate": "2200C",
  "condition_name": "invalid_use_of_escape_character",
  "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#L193",
      "lines": "193"
    },
    {
      "id": "src.calls.REL_18_6",
      "kind": "local_artifact",
      "source_role": "source_call_scan",
      "sha256": "9ee8a0e81d8f0825c5c1ae45583439859a26e602bdd4ce2f2a62aa278867ccbf"
    },
    {
      "id": "src.path.regexp-escape",
      "kind": "upstream_source",
      "source_role": "source_guard",
      "tag": "REL_18_6",
      "commit": "724edf9bde9d356724ad384a2e196edc3c9f80f7",
      "path": "src/backend/utils/adt/regexp.c",
      "sha256": "8c54fe9e937ce03111b39da7bca89b22d6cb2de6b9ce5f7caf90c76bc7218e0e",
      "url": "https://github.com/postgres/postgres/blob/724edf9bde9d356724ad384a2e196edc3c9f80f7/src/backend/utils/adt/regexp.c#L758-L951",
      "lines": "758-951"
    }
  ],
  "claims": [
    {
      "id": "identity",
      "statement": "2200C is invalid_use_of_escape_character in SQLSTATE Class 22.",
      "sources": [
        "src.errcodes.18.6"
      ],
      "method": "Read fixed definition."
    },
    {
      "id": "mechanism.regexp-separators",
      "statement": "The SQL SIMILAR TO translation helper similar_escape_internal treats an escaped double quote outside a bracket as a separator for the SQL SUBSTRING pattern parts; the third such separator raises 2200C. This is not a generic POSIX regular-expression backslash rule.",
      "sources": [
        "src.path.regexp-escape"
      ],
      "method": "Read the afterescape/nquotes guard and surrounding parser context.",
      "limits": "The rule concerns this escape-double-quote syntax, not every backslash in a regex."
    },
    {
      "id": "history",
      "statement": "The locked catalogue records 2200C from 7.4 without proving an exact implementation introduction date.",
      "sources": [
        "src.errcodes.18.6"
      ],
      "method": "Use catalogue boundary."
    }
  ],
  "messages": [
    {
      "id": "message.regexp",
      "sqlstate": "2200C",
      "primary_template": "SQL regular expression may not contain more than two escape-double-quote separators",
      "severity_source": "ERROR",
      "sources": [
        "src.path.regexp-escape"
      ]
    }
  ],
  "usage_evidence": [
    {
      "scope": "definition",
      "status": "definition_only",
      "evidence_ids": [
        "identity"
      ]
    },
    {
      "scope": "fixed-source-path",
      "status": "source_path_confirmed",
      "evidence_ids": [
        "mechanism.regexp-separators"
      ]
    },
    {
      "scope": "history",
      "status": "unknown",
      "evidence_ids": [
        "history"
      ]
    },
    {
      "scope": "natural-runtime",
      "status": "unknown",
      "evidence_ids": [
        "mechanism.regexp-separators"
      ]
    }
  ],
  "runtime": []
}