q349

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

card_games · mini_dev_pg-00000-of-00001 from https://huggingface.co/datasets/birdsql/bird_mini_dev/resolve/f65faf4ae3b638c1fa6df1d3370c8d92c8366301/data/mini_dev_pg-00000-of-00001.json (commit f65faf4a, downloaded 2026-09-08)

The question

Name the card and artist with the most ruling information. Also state if the card is a promotional printing.

the hint the set supplies: with the most ruling information refers to Max(count(rulings.uuid)); the card is the promotional printing refers to isPromo = 1;

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.

The statements

gold

SELECT T1.name, T1.artist, T1.isPromo FROM cards AS T1 INNER JOIN rulings AS T2 ON T1.uuid = T2.uuid WHERE T1.isPromo = 1 AND T1.artist = (SELECT artist FROM cards WHERE isPromo = 1 GROUP BY artist HAVING COUNT(DISTINCT uuid) = (SELECT MAX(count_uuid) FROM (SELECT COUNT(DISTINCT uuid) AS count_uuid FROM cards WHERE isPromo = 1 GROUP BY artist) AS subquery)) LIMIT 1

this statement states no ordering of its own

sha256:25a904c2b6d63c502feb68721823bd373a82c44112619b530e2f7cd514db0625

The results

gold, 1 row

from evidence-gold.json, 1 row

nametext artisttext ispromoint8
Serrated Arrows John Avon 1

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

the statement states no top level ORDER BY

what it measured
{
  "heuristic": true,
  "reason": "the statement states no top level ORDER BY"
}

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, 1 row

Mutavault John Avon 1
what it measured
{
  "heuristic": true,
  "case": "no-ordering",
  "cut": 1,
  "why": "the statement bounds its result and states no ORDER BY, so which rows it returns is whichever ones the plan produced first",
  "shuffle": {
    "seed": "1",
    "row_limit": 300000,
    "tables": [
      "cards",
      "rulings"
    ],
    "tables_not_shuffled": [],
    "tables_skipped_for_size": {
      "laptimes": 400524,
      "legalities": 427907,
      "posthistory": 303155,
      "trans": 1056320,
      "yearmonth": 383282
    },
    "tables_not_reached_by_a_copy": {}
  },
  "verdict": "not_equal",
  "gold_result": {
    "columns": [
      {
        "name": "name",
        "declared_type": "text"
      },
      {
        "name": "artist",
        "declared_type": "text"
      },
      {
        "name": "ispromo",
        "declared_type": "int8"
      }
    ],
    "row_count": 1,
    "truncated": false,
    "rows_shown": 1,
    "rows": [
      [
        {
          "type": "str",
          "value": "Serrated Arrows"
        },
        {
          "type": "str",
          "value": "John Avon"
        },
        {
          "type": "int",
          "value": 1
        }
      ]
    ],
    "result_hash": "sha256:25a904c2b6d63c502feb68721823bd373a82c44112619b530e2f7cd514db0625"
  },
  "shuffled_result": {
    "columns": [
      {
        "name": "name",
        "declared_type": "text"
      },
      {
        "name": "artist",
        "declared_type": "text"
      },
      {
        "name": "ispromo",
        "declared_type": "int8"
      }
    ],
    "row_count": 1,
    "truncated": false,
    "rows_shown": 1,
    "rows": [
      [
        {
          "type": "str",
          "value": "Mutavault"
        },
        {
          "type": "str",
          "value": "John Avon"
        },
        {
          "type": "int",
          "value": 1
        }
      ]
    ],
    "result_hash": "sha256:cc09d3ce793137dfd95f99dbef667e84472858eacc34797faa6d0b22a2c93136"
  }
}

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

Mutavault John Avon 1
what it measured
{
  "heuristic": true,
  "rule": "R-SET",
  "baseline_result_hash": "sha256:25a904c2b6d63c502feb68721823bd373a82c44112619b530e2f7cd514db0625",
  "baseline_result": {
    "columns": [
      {
        "name": "name",
        "declared_type": "text"
      },
      {
        "name": "artist",
        "declared_type": "text"
      },
      {
        "name": "ispromo",
        "declared_type": "int8"
      }
    ],
    "row_count": 1,
    "truncated": false,
    "rows_shown": 1,
    "rows": [
      [
        {
          "type": "str",
          "value": "Serrated Arrows"
        },
        {
          "type": "str",
          "value": "John Avon"
        },
        {
          "type": "int",
          "value": 1
        }
      ]
    ],
    "result_hash": "sha256:25a904c2b6d63c502feb68721823bd373a82c44112619b530e2f7cd514db0625"
  },
  "planner_statistics": {
    "cards": {
      "last_analyze": null,
      "last_autoanalyze": "2026-09-08 05:19:16.814042+00",
      "n_mod_since_analyze": 0
    },
    "rulings": {
      "last_analyze": null,
      "last_autoanalyze": "2026-09-08 05:19:43.694404+00",
      "n_mod_since_analyze": 0
    }
  },
  "shuffle": {
    "seed": "1",
    "row_limit": 300000,
    "tables": [
      "cards",
      "rulings"
    ],
    "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": "not_equal",
    "differs": true,
    "result_hash": "sha256:cc09d3ce793137dfd95f99dbef667e84472858eacc34797faa6d0b22a2c93136",
    "result": {
      "columns": [
        {
          "name": "name",
          "declared_type": "text"
        },
        {
          "name": "artist",
          "declared_type": "text"
        },
        {
          "name": "ispromo",
          "declared_type": "int8"
        }
      ],
      "row_count": 1,
      "truncated": false,
      "rows_shown": 1,
      "rows": [
        [
          {
            "type": "str",
            "value": "Mutavault"
          },
          {
            "type": "str",
            "value": "John Avon"
          },
          {
            "type": "int",
            "value": 1
          }
        ]
      ],
      "result_hash": "sha256:cc09d3ce793137dfd95f99dbef667e84472858eacc34797faa6d0b22a2c93136"
    }
  },
  "plan_variant": {
    "run": false,
    "reason": "the plan variant was not asked for"
  }
}

The evidence records

gold: evidence-gold.json

SELECT T1.name, T1.artist, T1.isPromo FROM cards AS T1 INNER JOIN rulings AS T2 ON T1.uuid = T2.uuid WHERE T1.isPromo = 1 AND T1.artist = (SELECT artist FROM cards WHERE isPromo = 1 GROUP BY artist HAVING COUNT(DISTINCT uuid) = (SELECT MAX(count_uuid) FROM (SELECT COUNT(DISTINCT uuid) AS count_uuid FROM cards WHERE isPromo = 1 GROUP BY artist) AS subquery)) LIMIT 1
statement read from
data/questions/mini_dev_pg-00000-of-00001.json
digest
sha256:7fa740ef9225389cff6c34432120e8325d0ca3008d73db1ae38731234bc10da7
origin
https://huggingface.co/datasets/birdsql/bird_mini_dev/resolve/f65faf4ae3b638c1fa6df1d3370c8d92c8366301/data/mini_dev_pg-00000-of-00001.json (commit f65faf4a, downloaded 2026-09-08), 2026-01-18T08:44:25Z

result_hash sha256:25a904c2b6d63c502feb68721823bd373a82c44112619b530e2f7cd514db0625 recomputed from this JSON: match

record_hash sha256:8a3b9f54e92545e3e0936b577d6b61dace7299394f5705a9ee42c8303876e606 recomputed from this JSON: match

the result this record holds, 1 row

from evidence-gold.json, 1 row

nametext artisttext ispromoint8
Serrated Arrows John Avon 1
what ran, and where
run
audit-ed50a84a-c286-4cbb-ac89-ab3111058ad5
executed at
2026-09-08T05:19:52.413993+00:00
data as of
2026-09-08T05:18:53.188748+00:00
backend at checkout
PostgreSQL 16.15 (Debian 16.15-1.pgdg13+2) on aarch64-unknown-linux-gnu, compiled by gcc (Debian 14.2.0-19) 14.2.0, 64-bit | server=172.17.0.2/32:5432 | database=bird
backend that answered
PostgreSQL 16.15 (Debian 16.15-1.pgdg13+2) on aarch64-unknown-linux-gnu, compiled by gcc (Debian 14.2.0-19) 14.2.0, 64-bit | server=172.17.0.2/32:5432 | database=bird
database role
auditor
replay rule
R-SET
question set version
sha256:7fa740ef9225389cff6c34432120e8325d0ca3008d73db1ae38731234bc10da7
validator
audit:libpg_query-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
postgresql
time_zone
Etc/UTC
date_style
ISO, MDY
interval_style
postgres
extra_float_digits
1
database_collation
en_US.utf8
work_mem
4096
hash_mem_multiplier
2

recorded beside them

statement_timeout
0
search_path
"$user", public
server_version
16.15 (Debian 16.15-1.pgdg13+2)
server_version_num
160015
transaction_read_only
on
max_parallel_workers_per_gather
2
server_encoding
UTF8
datlocprovider
c
daticulocale
datcollversion
2.41
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
sha256:1ed0ef6d87298e45a71993284d0cc39d9209a9a548bfed277902d73377f5f52e
source file sha256
sha256:31b1da211849d24a57c9af7636da46a5b82fc8a3ca1542bb3ebd8775e9a31cec
rows in public.cards
56822
rows in public.rulings
87769

Running these again

gold

re-run this statement read-only against PostgreSQL 16.15 (Debian 16.15-1.pgdg13+2) on aarch64-unknown-linux-gnu, compiled by gcc (Debian 14.2.0-19) 14.2.0, 64-bit | server=172.17.0.2/32:5432 | database=bird under the session settings and over the data this record's fixture digest names, and compare the two results under R-SET

This question's run

run
audit-ed50a84a-c286-4cbb-ac89-ab3111058ad5
server
PostgreSQL 16.15 (Debian 16.15-1.pgdg13+2) on aarch64-unknown-linux-gnu, compiled by gcc (Debian 14.2.0-19) 14.2.0, 64-bit | server=172.17.0.2/32:5432 | database=bird
question set
mini_dev_pg-00000-of-00001 from https://huggingface.co/datasets/birdsql/bird_mini_dev/resolve/f65faf4ae3b638c1fa6df1d3370c8d92c8366301/data/mini_dev_pg-00000-of-00001.json (commit f65faf4a, downloaded 2026-09-08)
replay rule
R-SET

the run this question belongs to

The JSON this page was rendered from