q82 GOLD-ONLY, dev-20251106 california

The question

What is the grade span offered in the school with the highest longitude?

the hint the set supplies: the highest longitude refers to the school with the maximum absolute longitude value.

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

two schools share the largest absolute longitude and offer different grade spans

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 GSoffered FROM schools ORDER BY ABS(longitude) DESC LIMIT 1

ABS(longitude): descending

sha256:32ca303822c371894a0c439cb44ae2e01d8fd91bdb14fe71b0a31bb8f64e4946

The results

gold, 1 row

from evidence-gold.json, 1 row

GSofferedTEXT
K-8

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": "ABS(longitude)",
      "not_applicable": "the key is an expression and not a column"
    }
  ]
}

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, 2 rows

K-8 str	124.28481
NULL null	124.28481

what it measured

{
  "heuristic": true,
  "cut": 1,
  "offset": 0,
  "distinct_kept": false,
  "unbounded_sql": "SELECT GSoffered, ABS(longitude) AS attestql_ordering_key_0 FROM schools ORDER BY ABS(longitude) DESC",
  "unbounded_rows": 17686,
  "projected_columns": [
    "GSoffered"
  ],
  "ordering_key_columns": [
    "attestql_ordering_key_0"
  ],
  "ordering_keys": [
    {
      "key": "ABS(longitude)",
      "direction": "desc",
      "nulls": "last",
      "nulls_first_in_effect": false,
      "returned_rows_null_in_this_key": 0,
      "fires": false
    }
  ],
  "tied_at_the_cut": {
    "positions": [
      0,
      1
    ],
    "tied_rows": 2,
    "distinct_projected_answers": 2,
    "rows": [
      [
        {
          "type": "str",
          "value": "K-8"
        }
      ],
      [
        {
          "type": "null",
          "value": null
        }
      ]
    ]
  },
  "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, 1 row

NULL

what it measured

{
  "heuristic": true,
  "rule": "R-ORD",
  "baseline_result_hash": "sha256:32ca303822c371894a0c439cb44ae2e01d8fd91bdb14fe71b0a31bb8f64e4946",
  "baseline_result": {
    "columns": [
      {
        "name": "GSoffered",
        "declared_type": "TEXT"
      }
    ],
    "row_count": 1,
    "truncated": false,
    "rows_shown": 1,
    "rows": [
      [
        {
          "type": "str",
          "value": "K-8"
        }
      ]
    ],
    "result_hash": "sha256:32ca303822c371894a0c439cb44ae2e01d8fd91bdb14fe71b0a31bb8f64e4946"
  },
  "planner_statistics": {},
  "shuffle": {
    "seed": "1",
    "row_limit": 300000,
    "tables": [
      "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:bad771e0d4b9fe90e86727e3c45b5b3744ea617f13ddc3d3a2c9ab9d8aa7b3b5",
    "result": {
      "columns": [
        {
          "name": "GSoffered",
          "declared_type": "NULL"
        }
      ],
      "row_count": 1,
      "truncated": false,
      "rows_shown": 1,
      "rows": [
        [
          {
            "type": "null",
            "value": null
          }
        ]
      ],
      "result_hash": "sha256:bad771e0d4b9fe90e86727e3c45b5b3744ea617f13ddc3d3a2c9ab9d8aa7b3b5"
    }
  },
  "plan_variant": {
    "run": false,
    "reason": "the plan variant was not asked for"
  }
}

duplicate-full-row not applicable

this statement returns the same whole row more than once and never says DISTINCT, so a statement answering the same question once per row disagrees on multiplicity alone

what it measured

{
  "heuristic": true,
  "rows": 1,
  "distinct_rows": 1,
  "repeated_rows": 0,
  "largest_repeat": 1,
  "result_bounded": false,
  "distinct_stated": false,
  "set_operation": false,
  "not_applicable": "a result of fewer than two rows has nothing to repeat"
}

The evidence records

gold: evidence-gold.json

SELECT GSoffered FROM schools ORDER BY ABS(longitude) DESC 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 sha256:32ca303822c371894a0c439cb44ae2e01d8fd91bdb14fe71b0a31bb8f64e4946 recomputed from this JSON: match

record_hash sha256:ccbd9988cb1ddd966d37abba10e5a8eda6d95be3fc64fe04b4ed289029840ca9 recomputed from this JSON: match

the result this record holds, 1 row

from evidence-gold.json, 1 row

GSofferedTEXT
K-8

what ran, and where

run: audit-f19f3c65-4f0e-44dd-9054-6051e98e899d
executed at: 2026-09-14T07:28:57.524362+00:00
data as of: 2026-09-14T07:28:53.804658+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
automatic_index: 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/4
numeric_scale: 6
timestamp_format: %Y-%m-%dT%H:%M:%S.%fZ
timezone: UTC
null_rendering: NULL
encoding: utf-8
schema digest: sha256:dee769f19d661ef4335b79c69926728339dc5406b5b1e6a69ef1c24d9a5b8770
source file sha256: sha256:986817d793479801ed55133e55aa27e335422c0cd3866b54a3d6317b7c5f09c1
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-f19f3c65-4f0e-44dd-9054-6051e98e899d
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

evidence-gold.json the gold's evidence record
smells.json attestql/audit/smells/2

The question

The statements

◀ gold

The results

The probes

ordering-over-numeric-text not applicable

arbitrary-cut fired

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

duplicate-full-row not applicable

The evidence records

gold: evidence-gold.json

recorded beside them

Running these again

gold

This question's run

The JSON this page was rendered from

gold