q81

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

california_schools · 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

In which city can you find the school in the state of California with the lowest latitude coordinates and what is its lowest grade? Indicate the school name.

the hint the set supplies: State of California refers to state = 'CA'

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

the ordering key is NULL in nine rows and SQLite sorts NULL first ascending, so the gold returns a school with no latitude rather than the lowest one, and nine different schools could come back

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 T2.City, T1.`Low Grade`, T1.`School Name` FROM frpm AS T1 INNER JOIN schools AS T2 ON T1.CDSCode = T2.CDSCode WHERE T2.State = 'CA' ORDER BY T2.Latitude ASC LIMIT 1
T2.Latitude
ascending

sha256:a5e73defb0aca6a1c2d1b80aeae9a4128e0cb15c642ff66d7022edd4b4bfdacf

The results

gold, 1 row

from evidence-gold.json, 1 row

CityTEXT Low GradeTEXT School NameTEXT
Oroville 7 Central Middle - RISE

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": "T2.Latitude",
      "column": "schools.Latitude",
      "declared_type": "REAL",
      "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, 9 rows

Oroville 7 Central Middle - RISE NULL
Anaheim 7 Community Day/Alternative Education/Special Education NULL
Garden Grove 9 Lincoln High Continuation NULL
Escondido 9 Escondido Community Day NULL
Encinitas 7 North Coast Alternative High NULL
San Jose K Success Academy NULL
Redding 7 Shasta Independent Learning Center NULL
Denair K Denair Academic Avenues NULL
Waterford K Roberts Ferry Community Day NULL
what it measured 
{
  "heuristic": true,
  "cut": 1,
  "offset": 0,
  "distinct_kept": false,
  "unbounded_sql": "SELECT T2.City, T1.\"Low Grade\", T1.\"School Name\", T2.Latitude AS attestql_ordering_key_0 FROM frpm AS T1 INNER JOIN schools AS T2 ON T1.CDSCode = T2.CDSCode WHERE T2.State = 'CA' ORDER BY T2.Latitude ASC",
  "unbounded_rows": 9986,
  "projected_columns": [
    "City",
    "Low Grade",
    "School Name"
  ],
  "ordering_key_columns": [
    "attestql_ordering_key_0"
  ],
  "ordering_keys": [
    {
      "key": "T2.Latitude",
      "direction": "asc",
      "nulls": "first",
      "nulls_first_in_effect": true,
      "returned_rows_null_in_this_key": 1,
      "fires": true
    }
  ],
  "returned_rows_with_a_null_key": [
    [
      {
        "type": "str",
        "value": "Oroville"
      },
      {
        "type": "str",
        "value": "7"
      },
      {
        "type": "str",
        "value": "Central Middle - RISE"
      }
    ]
  ],
  "tied_at_the_cut": {
    "positions": [
      0,
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8
    ],
    "tied_rows": 9,
    "distinct_projected_answers": 9,
    "rows": [
      [
        {
          "type": "str",
          "value": "Oroville"
        },
        {
          "type": "str",
          "value": "7"
        },
        {
          "type": "str",
          "value": "Central Middle - RISE"
        }
      ],
      [
        {
          "type": "str",
          "value": "Anaheim"
        },
        {
          "type": "str",
          "value": "7"
        },
        {
          "type": "str",
          "value": "Community Day/Alternative Education/Special Education"
        }
      ],
      [
        {
          "type": "str",
          "value": "Garden Grove"
        },
        {
          "type": "str",
          "value": "9"
        },
        {
          "type": "str",
          "value": "Lincoln High Continuation"
        }
      ],
      [
        {
          "type": "str",
          "value": "Escondido"
        },
        {
          "type": "str",
          "value": "9"
        },
        {
          "type": "str",
          "value": "Escondido Community Day"
        }
      ],
      [
        {
          "type": "str",
          "value": "Encinitas"
        },
        {
          "type": "str",
          "value": "7"
        },
        {
          "type": "str",
          "value": "North Coast Alternative High"
        }
      ],
      [
        {
          "type": "str",
          "value": "San Jose"
        },
        {
          "type": "str",
          "value": "K"
        },
        {
          "type": "str",
          "value": "Success Academy"
        }
      ],
      [
        {
          "type": "str",
          "value": "Redding"
        },
        {
          "type": "str",
          "value": "7"
        },
        {
          "type": "str",
          "value": "Shasta Independent Learning Center"
        }
      ],
      [
        {
          "type": "str",
          "value": "Denair"
        },
        {
          "type": "str",
          "value": "K"
        },
        {
          "type": "str",
          "value": "Denair Academic Avenues"
        }
      ],
      [
        {
          "type": "str",
          "value": "Waterford"
        },
        {
          "type": "str",
          "value": "K"
        },
        {
          "type": "str",
          "value": "Roberts Ferry Community Day"
        }
      ]
    ]
  },
  "case": "tie-at-the-cut, null-first"
}

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, 1 row

Escondido 9 Escondido Community Day
what it measured 
{
  "heuristic": true,
  "rule": "R-ORD",
  "baseline_result_hash": "sha256:a5e73defb0aca6a1c2d1b80aeae9a4128e0cb15c642ff66d7022edd4b4bfdacf",
  "baseline_result": {
    "columns": [
      {
        "name": "City",
        "declared_type": "TEXT"
      },
      {
        "name": "Low Grade",
        "declared_type": "TEXT"
      },
      {
        "name": "School Name",
        "declared_type": "TEXT"
      }
    ],
    "row_count": 1,
    "truncated": false,
    "rows_shown": 1,
    "rows": [
      [
        {
          "type": "str",
          "value": "Oroville"
        },
        {
          "type": "str",
          "value": "7"
        },
        {
          "type": "str",
          "value": "Central Middle - RISE"
        }
      ]
    ],
    "result_hash": "sha256:a5e73defb0aca6a1c2d1b80aeae9a4128e0cb15c642ff66d7022edd4b4bfdacf"
  },
  "planner_statistics": {},
  "shuffle": {
    "seed": "1",
    "row_limit": 300000,
    "tables": [
      "frpm",
      "schools"
    ],
    "tables_not_shuffled": [],
    "tables_skipped_for_size": {},
    "tables_not_reached_by_a_copy": {}
  },
  "shuffled_copies": {
    "run": true,
    "verdict": "not_equal",
    "differs": true,
    "result_hash": "sha256:3ec3af84ec6a49ecdb178c009ae424a9149b056df1bd39b026c3a0251a40037a",
    "result": {
      "columns": [
        {
          "name": "City",
          "declared_type": "TEXT"
        },
        {
          "name": "Low Grade",
          "declared_type": "TEXT"
        },
        {
          "name": "School Name",
          "declared_type": "TEXT"
        }
      ],
      "row_count": 1,
      "truncated": false,
      "rows_shown": 1,
      "rows": [
        [
          {
            "type": "str",
            "value": "Escondido"
          },
          {
            "type": "str",
            "value": "9"
          },
          {
            "type": "str",
            "value": "Escondido Community Day"
          }
        ]
      ],
      "result_hash": "sha256:3ec3af84ec6a49ecdb178c009ae424a9149b056df1bd39b026c3a0251a40037a"
    }
  },
  "plan_variant": {
    "run": false,
    "reason": "the plan variant was not asked for"
  }
}

The evidence records

gold: evidence-gold.json

SELECT T2.City, T1.`Low Grade`, T1.`School Name` FROM frpm AS T1 INNER JOIN schools AS T2 ON T1.CDSCode = T2.CDSCode WHERE T2.State = 'CA' ORDER BY T2.Latitude ASC LIMIT 1
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:a5e73defb0aca6a1c2d1b80aeae9a4128e0cb15c642ff66d7022edd4b4bfdacf recomputed from this JSON: match

record_hash sha256:3c46793d8b014bf14a9aa4f7ab6e1217325eb2465c33568dba38d4826dfd283b recomputed from this JSON: match

the result this record holds, 1 row

from evidence-gold.json, 1 row

CityTEXT Low GradeTEXT School NameTEXT
Oroville 7 Central Middle - RISE
what ran, and where
run
audit-cf217358-b543-48ea-95b9-81bb7a1f9fdc
executed at
2026-09-08T05:05:56.637944+00:00
data as of
2026-09-08T05:05:54.087132+00:00
backend at checkout
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/california_schools/california_schools.sqlite | size=11116544
backend that answered
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/california_schools/california_schools.sqlite | size=11116544
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
1 row
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
1
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
sha256:942518fe8185b8b913df07332d635e5341c64ff825b4859327933accb720cee8
source file sha256
sha256:986817d793479801ed55133e55aa27e335422c0cd3866b54a3d6317b7c5f09c1
rows in main.frpm
9986
rows in main.schools
17686

Running these again

gold

re-run this statement read-only against SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/california_schools/california_schools.sqlite | size=11116544 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-cf217358-b543-48ea-95b9-81bb7a1f9fdc
server
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/california_schools/california_schools.sqlite | size=11116544
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