{
  "format": "attestql/audit/smells/2",
  "reading": "A smell is a mechanical reason to read this gold statement again. It is a heuristic: it does not state that the statement is wrong, and a maintainer decides.",
  "smells": [
    {
      "name": "ordering-over-numeric-text",
      "fired": true,
      "applicable": true,
      "evidence": {
        "heuristic": true,
        "means": "this statement orders by a text column holding only numbers, and ordering it as a number gives a different answer, so the gold may be sorting 9.5 above 10",
        "keys": [
          {
            "key": "t2.a4",
            "column": "district.a4",
            "declared_type": "text",
            "not_applicable": null,
            "census": {
              "rows": 77,
              "nulls": 0,
              "empty_strings": 0,
              "non_numeric": 0,
              "pattern": "^-?[0-9]+(\\.[0-9]+)?$"
            },
            "every_value_is_numeric": true,
            "cast_sql": "SELECT (sum(CASE WHEN t1.gender = 'M' THEN 1 ELSE 0 END)::real * 100) / (NULLIF(count(t1.client_id), 0)) FROM client t1 JOIN district t2 ON t1.district_id = t2.district_id WHERE t2.a3 = 'south Bohemia' GROUP BY t2.a4 ORDER BY t2.a4::numeric DESC LIMIT 1",
            "verdict": "not_equal",
            "gold_result": {
              "columns": [
                {
                  "name": "?column?",
                  "declared_type": "float8"
                }
              ],
              "row_count": 1,
              "truncated": false,
              "rows_shown": 1,
              "rows": [
                [
                  {
                    "type": "dec",
                    "value": "44.26229508196721"
                  }
                ]
              ],
              "result_hash": "sha256:1d5676188a69cac3b71ac5c29370f9191b860ef40ad9d4105d05a96dc911c589"
            },
            "cast_result": {
              "columns": [
                {
                  "name": "?column?",
                  "declared_type": "float8"
                }
              ],
              "row_count": 1,
              "truncated": false,
              "rows_shown": 1,
              "rows": [
                [
                  {
                    "type": "dec",
                    "value": "40"
                  }
                ]
              ],
              "result_hash": "sha256:a7e3633399ec0b1665099a8c2dd8f54ef1b3e40567181c4dc8be09e2b9d0f10e"
            }
          }
        ]
      },
      "counterexample_rows": [
        [
          {
            "type": "dec",
            "value": "44.26229508196721"
          }
        ]
      ]
    },
    {
      "name": "arbitrary-cut",
      "fired": false,
      "applicable": true,
      "evidence": {
        "heuristic": true,
        "means": "this statement cuts its result at a LIMIT that does not decide which rows come back, so a different but equally correct statement can return other rows and score zero",
        "cut": 1,
        "offset": 0,
        "distinct_kept": false,
        "unbounded_sql": "SELECT (sum(CASE WHEN t1.gender = 'M' THEN 1 ELSE 0 END)::real * 100) / (NULLIF(count(t1.client_id), 0)), t2.a4 AS attestql_ordering_key_0 FROM client t1 JOIN district t2 ON t1.district_id = t2.district_id WHERE t2.a3 = 'south Bohemia' GROUP BY t2.a4 ORDER BY t2.a4 DESC",
        "unbounded_rows": 8,
        "projected_columns": [
          "?column?"
        ],
        "ordering_key_columns": [
          "attestql_ordering_key_0"
        ],
        "ordering_keys": [
          {
            "key": "t2.a4",
            "direction": "desc",
            "nulls": "default",
            "nulls_first_in_effect": true,
            "returned_rows_null_in_this_key": 0,
            "fires": false
          }
        ],
        "case": null
      },
      "counterexample_rows": []
    },
    {
      "name": "not-a-function-of-the-data",
      "fired": false,
      "applicable": true,
      "evidence": {
        "heuristic": true,
        "means": "rerun over the same rows in another physical order this statement gives another answer, so its result depends on how the rows are stored and not only on the data",
        "rule": "R-ORD",
        "baseline_result_hash": "sha256:1d5676188a69cac3b71ac5c29370f9191b860ef40ad9d4105d05a96dc911c589",
        "baseline_result": {
          "columns": [
            {
              "name": "?column?",
              "declared_type": "float8"
            }
          ],
          "row_count": 1,
          "truncated": false,
          "rows_shown": 1,
          "rows": [
            [
              {
                "type": "dec",
                "value": "44.26229508196721"
              }
            ]
          ],
          "result_hash": "sha256:1d5676188a69cac3b71ac5c29370f9191b860ef40ad9d4105d05a96dc911c589"
        },
        "planner_statistics": {
          "client": {
            "last_analyze": null,
            "last_autoanalyze": "2026-09-08 05:19:12.822716+00",
            "n_mod_since_analyze": 0
          },
          "district": {
            "last_analyze": null,
            "last_autoanalyze": "2026-09-08 05:19:24.361355+00",
            "n_mod_since_analyze": 0
          }
        },
        "shuffle": {
          "seed": "1",
          "row_limit": 300000,
          "tables": [
            "client",
            "district"
          ],
          "tables_not_shuffled": [],
          "tables_skipped_for_size": {
            "laptimes": 400524,
            "legalities": 427907,
            "posthistory": 303155,
            "trans": 1056320,
            "yearmonth": 383282
          },
          "tables_not_reached_by_a_copy": {}
        },
        "shuffled_copies": {
          "run": true,
          "verdict": "equal",
          "differs": false,
          "result_hash": "sha256:1d5676188a69cac3b71ac5c29370f9191b860ef40ad9d4105d05a96dc911c589",
          "result": {
            "columns": [
              {
                "name": "?column?",
                "declared_type": "float8"
              }
            ],
            "row_count": 1,
            "truncated": false,
            "rows_shown": 1,
            "rows": [
              [
                {
                  "type": "dec",
                  "value": "44.26229508196721"
                }
              ]
            ],
            "result_hash": "sha256:1d5676188a69cac3b71ac5c29370f9191b860ef40ad9d4105d05a96dc911c589"
          }
        },
        "plan_variant": {
          "run": false,
          "reason": "the plan variant was not asked for"
        }
      },
      "counterexample_rows": []
    }
  ]
}