q1117

R-ORD GOLD-ONLY arbitrary-cut not-a-function-of-the-data

european_football_2 · dev_20251106-00000-of-00001 from https://huggingface.co/datasets/birdsql/bird_sql_dev_20251106/resolve/3c11fb193e5439b338e23677fa0aae11e8b85db9/data/dev_20251106-00000-of-00001.json (commit 3c11fb19, downloaded 2026-09-07)

The question

What are the player api id of 10 heaviest players?

the hint the set supplies: heaviest refers to MAX(weight)

This question was audited without a prediction beside it, so there is nothing to compare the gold with. The probes below read the gold alone.

read by hand, 2026-09-07: wrong the gold does not answer its question on this data

three players tie at positions 8 to 10 of the weight order, so two of the ten ids are arbitrary

a maintainer's reading of this question, out of classification.json, copied from plans/reports/bird-dev-sqlite-260907/classification.json. It is not a verdict and nothing above it was computed from it.

The statements

gold

SELECT player_api_id FROM Player ORDER BY weight DESC LIMIT 10
weight
descending

sha256:9c862969bd013e05ff1ea75a57d2694534e7e3c323e621be154562fbb327bb68

The results

gold, 10 rows

from evidence-gold.json, 10 rows

player_api_idINTEGER
148325
27313
5044
27267
101584
19020
210822
30669
40005
33060

The probes

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.

ordering-over-numeric-text not applicable

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

no ORDER BY key resolves to a text column

what it measured 
{
  "heuristic": true,
  "reason": "no ORDER BY key resolves to a text column",
  "keys": [
    {
      "key": "weight",
      "column": "Player.weight",
      "declared_type": "INTEGER",
      "not_applicable": "the column is not declared as text"
    }
  ]
}

arbitrary-cut fired

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

from smells.json, 3 rows

40005 218
33060 218
93450 218
what it measured 
{
  "heuristic": true,
  "cut": 10,
  "offset": 0,
  "distinct_kept": false,
  "unbounded_sql": "SELECT player_api_id, weight AS attestql_ordering_key_0 FROM Player ORDER BY weight DESC",
  "unbounded_rows": 11060,
  "projected_columns": [
    "player_api_id"
  ],
  "ordering_key_columns": [
    "attestql_ordering_key_0"
  ],
  "ordering_keys": [
    {
      "key": "weight",
      "direction": "desc",
      "nulls": "last",
      "nulls_first_in_effect": false,
      "returned_rows_null_in_this_key": 0,
      "fires": false
    }
  ],
  "tied_at_the_cut": {
    "positions": [
      8,
      9,
      10
    ],
    "tied_rows": 3,
    "distinct_projected_answers": 3,
    "rows": [
      [
        {
          "type": "int",
          "value": 40005
        }
      ],
      [
        {
          "type": "int",
          "value": 33060
        }
      ],
      [
        {
          "type": "int",
          "value": 93450
        }
      ]
    ]
  },
  "case": "tie-at-the-cut"
}

not-a-function-of-the-data fired

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

from smells.json, 10 rows

148325
27313
5044
27267
101584
19020
30669
210822
33060
93450
what it measured 
{
  "heuristic": true,
  "rule": "R-ORD",
  "baseline_result_hash": "sha256:9c862969bd013e05ff1ea75a57d2694534e7e3c323e621be154562fbb327bb68",
  "baseline_result": {
    "columns": [
      {
        "name": "player_api_id",
        "declared_type": "INTEGER"
      }
    ],
    "row_count": 10,
    "truncated": false,
    "rows_shown": 10,
    "rows": [
      [
        {
          "type": "int",
          "value": 148325
        }
      ],
      [
        {
          "type": "int",
          "value": 27313
        }
      ],
      [
        {
          "type": "int",
          "value": 5044
        }
      ],
      [
        {
          "type": "int",
          "value": 27267
        }
      ],
      [
        {
          "type": "int",
          "value": 101584
        }
      ],
      [
        {
          "type": "int",
          "value": 19020
        }
      ],
      [
        {
          "type": "int",
          "value": 210822
        }
      ],
      [
        {
          "type": "int",
          "value": 30669
        }
      ],
      [
        {
          "type": "int",
          "value": 40005
        }
      ],
      [
        {
          "type": "int",
          "value": 33060
        }
      ]
    ],
    "result_hash": "sha256:9c862969bd013e05ff1ea75a57d2694534e7e3c323e621be154562fbb327bb68"
  },
  "planner_statistics": {},
  "shuffle": {
    "seed": "1",
    "row_limit": 300000,
    "tables": [
      "Player"
    ],
    "tables_not_shuffled": [],
    "tables_skipped_for_size": {},
    "tables_not_reached_by_a_copy": {}
  },
  "shuffled_copies": {
    "run": true,
    "verdict": "not_equal",
    "differs": true,
    "result_hash": "sha256:00277151e5b74d307cf3e7fa4c6687c33f340b77231a3a4ef5eca2ca1c2b274d",
    "result": {
      "columns": [
        {
          "name": "player_api_id",
          "declared_type": "INTEGER"
        }
      ],
      "row_count": 10,
      "truncated": false,
      "rows_shown": 10,
      "rows": [
        [
          {
            "type": "int",
            "value": 148325
          }
        ],
        [
          {
            "type": "int",
            "value": 27313
          }
        ],
        [
          {
            "type": "int",
            "value": 5044
          }
        ],
        [
          {
            "type": "int",
            "value": 27267
          }
        ],
        [
          {
            "type": "int",
            "value": 101584
          }
        ],
        [
          {
            "type": "int",
            "value": 19020
          }
        ],
        [
          {
            "type": "int",
            "value": 30669
          }
        ],
        [
          {
            "type": "int",
            "value": 210822
          }
        ],
        [
          {
            "type": "int",
            "value": 33060
          }
        ],
        [
          {
            "type": "int",
            "value": 93450
          }
        ]
      ],
      "result_hash": "sha256:00277151e5b74d307cf3e7fa4c6687c33f340b77231a3a4ef5eca2ca1c2b274d"
    }
  },
  "plan_variant": {
    "run": false,
    "reason": "the plan variant was not asked for"
  }
}

The evidence records

gold: evidence-gold.json

SELECT player_api_id FROM Player ORDER BY weight DESC LIMIT 10
statement read from
data/questions/dev_20251106-00000-of-00001.json
digest
sha256:ffd8018378ddb1a8794753e0a31cfc81862ff7318a5184c22f3dc4ce03a03feb
origin
https://huggingface.co/datasets/birdsql/bird_sql_dev_20251106/resolve/3c11fb193e5439b338e23677fa0aae11e8b85db9/data/dev_20251106-00000-of-00001.json (commit 3c11fb19, downloaded 2026-09-07), 2026-01-18T08:51:02Z

result_hash sha256:9c862969bd013e05ff1ea75a57d2694534e7e3c323e621be154562fbb327bb68 recomputed from this JSON: match

record_hash sha256:628f831f7f3805f0b93d26dfe680238302ff516bcf3b5ccf4931c444f96081a3 recomputed from this JSON: match

the result this record holds, 10 rows

from evidence-gold.json, 10 rows

player_api_idINTEGER
148325
27313
5044
27267
101584
19020
210822
30669
40005
33060
what ran, and where
run
audit-9d69a29b-e497-49b3-976c-18ac8e4f0c76
executed at
2026-09-08T05:14:10.742655+00:00
data as of
2026-09-08T05:13:55.178504+00:00
backend at checkout
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/european_football_2/european_football_2.sqlite | size=597754880
backend that answered
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/european_football_2/european_football_2.sqlite | size=597754880
database role
file
replay rule
R-ORD
question set version
sha256:ffd8018378ddb1a8794753e0a31cfc81862ff7318a5184c22f3dc4ce03a03feb
validator
audit:sqlglot-sqlite-parse
checks run
parses_as_exactly_one_statement, the_one_statement_is_a_select, no_placeholder_without_a_bound_parameter
statement timeout
30000 ms
rows
10 rows
the session it ran under
engine
sqlite
time_zone
not stated by this engine
date_style
not stated by this engine
interval_style
not stated by this engine
extra_float_digits
not stated by this engine
database_collation
not stated by this engine
work_mem
not stated by this engine
hash_mem_multiplier
not stated by this engine

recorded beside them

sqlite_version
3.53.4
encoding
UTF-8
reverse_unordered_selects
0
query_only
1
journal_mode
delete
data_version
2
compile_options
ATOMIC_INTRINSICS=1,COMPILER=clang-21.0.0,DEFAULT_AUTOVACUUM,DEFAULT_CACHE_SIZE=-2000,DEFAULT_FILE_FORMAT=4,DEFAULT_JOURNAL_SIZE_LIMIT=-1,DEFAULT_MMAP_SIZE=0,DEFAULT_PAGE_SIZE=4096,DEFAULT_PCACHE_INITSZ=20,DEFAULT_RECURSIVE_TRIGGERS,DEFAULT_SECTOR_SIZE=4096,DEFAULT_SYNCHRONOUS=2,DEFAULT_WAL_AUTOCHECKPOINT=1000,DEFAULT_WAL_SYNCHRONOUS=2,DEFAULT_WORKER_THREADS=0,DIRECT_OVERFLOW_READ,ENABLE_API_ARMOR,ENABLE_COLUMN_METADATA,ENABLE_DBSTAT_VTAB,ENABLE_FTS3,ENABLE_FTS3_PARENTHESIS,ENABLE_FTS5,ENABLE_GEOPOLY,ENABLE_MATH_FUNCTIONS,ENABLE_MEMORY_MANAGEMENT,ENABLE_PERCENTILE,ENABLE_PREUPDATE_HOOK,ENABLE_RTREE,ENABLE_SESSION,ENABLE_STAT4,ENABLE_UNLOCK_NOTIFY,MALLOC_SOFT_LIMIT=1024,MAX_ATTACHED=10,MAX_COLUMN=2000,MAX_COMPOUND_SELECT=500,MAX_DEFAULT_PAGE_SIZE=8192,MAX_EXPR_DEPTH=1000,MAX_FUNCTION_ARG=1000,MAX_LENGTH=1000000000,MAX_LIKE_PATTERN_LENGTH=50000,MAX_MMAP_SIZE=0x7fff0000,MAX_PAGE_COUNT=0xfffffffe,MAX_PAGE_SIZE=65536,MAX_SQL_LENGTH=1000000000,MAX_TRIGGER_DEPTH=1000,MAX_VARIABLE_NUMBER=250000,MAX_VDBE_OP=250000000,MAX_WORKER_THREADS=8,MUTEX_PTHREADS,SYSTEM_MALLOC,TEMP_STORE=1,THREADSAFE=1,USE_URI
collation_list
RTRIM,NOCASE,BINARY
case_sensitive_like
0
the rendering and the data
version
attestql/audit/2
numeric_scale
6
timestamp_format
%Y-%m-%dT%H:%M:%S.%fZ
timezone
UTC
null_rendering
NULL
encoding
utf-8
schema digest
sha256:cc631e2664baf21496921a9bc132f07ce189430dd747ec5dfc7dd4ec47b536fd
source file sha256
sha256:e4d361dbeec6591a4b315877c0c481da05c8ff5a3d389b34d6e17b6f15bee4e0
rows in main.Player
11060

Running these again

gold

re-run this statement read-only against SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/european_football_2/european_football_2.sqlite | size=597754880 under the session settings and over the data this record's fixture digest names, and compare the two results under R-ORD

This question's run

run
audit-9d69a29b-e497-49b3-976c-18ac8e4f0c76
server
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/european_football_2/european_football_2.sqlite | size=597754880
question set
dev_20251106-00000-of-00001 from https://huggingface.co/datasets/birdsql/bird_sql_dev_20251106/resolve/3c11fb193e5439b338e23677fa0aae11e8b85db9/data/dev_20251106-00000-of-00001.json (commit 3c11fb19, downloaded 2026-09-07)
replay rule
R-ORD

the run this question belongs to

The JSON this page was rendered from