q1517

R-ORD GOLD-ONLY arbitrary-cut

debit_card_specializing · 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

For the earliest customer, what segment did he/she have?

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

ten transactions share the earliest date and belong to customers in three different segments

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.Segment FROM transactions_1k AS T1 INNER JOIN customers AS T2 ON T1.CustomerID = T2.CustomerID ORDER BY Date ASC LIMIT 1
Date
ascending

sha256:14a49db3fad554e8ad8ff7110947c3c8b07242b6abe35576879b7406bee72648

The results

gold, 1 row

from evidence-gold.json, 1 row

SegmentTEXT
KAM

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": "Date",
      "column": "transactions_1k.Date",
      "declared_type": "DATE",
      "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, 10 rows

KAM 2012-08-23
KAM 2012-08-23
LAM 2012-08-23
KAM 2012-08-23
SME 2012-08-23
KAM 2012-08-23
KAM 2012-08-23
KAM 2012-08-23
KAM 2012-08-23
KAM 2012-08-23
what it measured 
{
  "heuristic": true,
  "cut": 1,
  "offset": 0,
  "distinct_kept": false,
  "unbounded_sql": "SELECT T2.Segment, Date AS attestql_ordering_key_0 FROM transactions_1k AS T1 INNER JOIN customers AS T2 ON T1.CustomerID = T2.CustomerID ORDER BY Date ASC",
  "unbounded_rows": 1000,
  "projected_columns": [
    "Segment"
  ],
  "ordering_key_columns": [
    "attestql_ordering_key_0"
  ],
  "ordering_keys": [
    {
      "key": "Date",
      "direction": "asc",
      "nulls": "first",
      "nulls_first_in_effect": true,
      "returned_rows_null_in_this_key": 0,
      "fires": false
    }
  ],
  "tied_at_the_cut": {
    "positions": [
      0,
      1,
      2,
      3,
      4,
      5,
      6,
      7,
      8,
      9
    ],
    "tied_rows": 10,
    "distinct_projected_answers": 3,
    "rows": [
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "LAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "SME"
        }
      ],
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ],
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ]
    ]
  },
  "case": "tie-at-the-cut"
}

not-a-function-of-the-data quiet

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

what it measured 
{
  "heuristic": true,
  "rule": "R-ORD",
  "baseline_result_hash": "sha256:14a49db3fad554e8ad8ff7110947c3c8b07242b6abe35576879b7406bee72648",
  "baseline_result": {
    "columns": [
      {
        "name": "Segment",
        "declared_type": "TEXT"
      }
    ],
    "row_count": 1,
    "truncated": false,
    "rows_shown": 1,
    "rows": [
      [
        {
          "type": "str",
          "value": "KAM"
        }
      ]
    ],
    "result_hash": "sha256:14a49db3fad554e8ad8ff7110947c3c8b07242b6abe35576879b7406bee72648"
  },
  "planner_statistics": {},
  "shuffle": {
    "seed": "1",
    "row_limit": 300000,
    "tables": [
      "transactions_1k",
      "customers"
    ],
    "tables_not_shuffled": [],
    "tables_skipped_for_size": {
      "yearmonth": 383282
    },
    "tables_not_reached_by_a_copy": {}
  },
  "shuffled_copies": {
    "run": true,
    "verdict": "equal",
    "differs": false,
    "result_hash": "sha256:14a49db3fad554e8ad8ff7110947c3c8b07242b6abe35576879b7406bee72648",
    "result": {
      "columns": [
        {
          "name": "Segment",
          "declared_type": "TEXT"
        }
      ],
      "row_count": 1,
      "truncated": false,
      "rows_shown": 1,
      "rows": [
        [
          {
            "type": "str",
            "value": "KAM"
          }
        ]
      ],
      "result_hash": "sha256:14a49db3fad554e8ad8ff7110947c3c8b07242b6abe35576879b7406bee72648"
    }
  },
  "plan_variant": {
    "run": false,
    "reason": "the plan variant was not asked for"
  }
}

The evidence records

gold: evidence-gold.json

SELECT T2.Segment FROM transactions_1k AS T1 INNER JOIN customers AS T2 ON T1.CustomerID = T2.CustomerID ORDER BY Date 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 sha256:14a49db3fad554e8ad8ff7110947c3c8b07242b6abe35576879b7406bee72648 recomputed from this JSON: match

record_hash sha256:308f9bac29bb756e01ef0357532bb8c91560a81afad7584714e3ccddc277b5d5 recomputed from this JSON: match

the result this record holds, 1 row

from evidence-gold.json, 1 row

SegmentTEXT
KAM
what ran, and where
run
audit-63118ad9-0d09-4659-b872-f27fea977091
executed at
2026-09-08T05:08:53.586852+00:00
data as of
2026-09-08T05:08:50.068080+00:00
backend at checkout
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/debit_card_specializing/debit_card_specializing.sqlite | size=34635776
backend that answered
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/debit_card_specializing/debit_card_specializing.sqlite | size=34635776
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:a5658badec5588bb0dbb7a8e166d54b85e94f25d49588b457e1a76f215ca0f94
source file sha256
sha256:b3d149ad05746dbbe5116e229e17e18f09c39db43cf117d9ef3441753608b691
rows in main.customers
32461
rows in main.transactions_1k
1000

Running these again

gold

re-run this statement read-only against SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/debit_card_specializing/debit_card_specializing.sqlite | size=34635776 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-63118ad9-0d09-4659-b872-f27fea977091
server
SQLite 3.53.4 | file=/private/tmp/attestql-runs/data/dev/dev_databases/debit_card_specializing/debit_card_specializing.sqlite | size=34635776
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