Lyrebird · Realistic synthetic test databases, generated fully offline

PostgreSQL · Pagila

film

Source rows
1,000
Synthetic rows
1,000
Broken foreign keys
0
Rows equal to a source row
0%

References: language_id → languageoriginal_language_id → language

Rows

Both databases, first rows by primary key, in one table: scrolling sideways moves them together. Rows at the same position are unrelated, unless the table holds kept reference data. Long values are cut at 60 characters.

film_id keytitledescriptionrelease_yearlanguage_idoriginal_language_idrental_durationrental_ratelengthreplacement_costratinglast_updatespecial_featuresfulltext
Source database · 12 of 1,000 rows
1ACADEMY DINOSAURA Epic Drama of a Feminist And a Mad Scientist who must Bat…20061NULL60.998620.99PG2022-09-10 16:46:03.905+00:00['Deleted Scenes', 'Behind the Scenes']'academi':1 'battl':15 'canadian':20 'dinosaur':2 'drama':5…
2ACE GOLDFINGERA Astounding Epistle of a Database Administrator And a Expl…20061NULL34.994812.99G2022-09-10 16:46:03.905+00:00['Trailers', 'Deleted Scenes']'ace':1 'administr':9 'ancient':19 'astound':4 'car':17 'ch…
3ADAPTATION HOLESA Astounding Reflection of a Lumberjack And a Car who must …20061NULL72.995018.99NC-172022-09-10 16:46:03.905+00:00['Trailers', 'Deleted Scenes']'adapt':1 'astound':4 'baloon':19 'car':11 'factori':20 'ho…
4AFFAIR PREJUDICEA Fanciful Documentary of a Frisbee And a Lumberjack who mu…20061NULL52.9911726.99G2022-09-10 16:46:03.905+00:00['Commentaries', 'Behind the Scenes']'affair':1 'chase':14 'documentari':5 'fanci':4 'frisbe':8 …
5AFRICAN EGGA Fast-Paced Documentary of a Pastry Chef And a Dentist who…20061NULL62.9913022.99G2022-09-10 16:46:03.905+00:00['Deleted Scenes']'african':1 'chef':11 'dentist':14 'documentari':7 'egg':2 …
6AGENT TRUMANA Intrepid Panorama of a Robot And a Boy who must Escape a …20061NULL32.9916917.99PG2022-09-10 16:46:03.905+00:00['Deleted Scenes']'agent':1 'ancient':19 'boy':11 'china':20 'escap':14 'intr…
7AIRPLANE SIERRAA Touching Saga of a Hunter And a Butler who must Discover …20061NULL64.996228.99PG-132022-09-10 16:46:03.905+00:00['Trailers', 'Deleted Scenes']'airplan':1 'boat':20 'butler':11,16 'discov':14 'hunter':8…
8AIRPORT POLLOCKA Epic Tale of a Moose And a Girl who must Confront a Monke…20061NULL64.995415.99R2022-09-10 16:46:03.905+00:00['Trailers']'airport':1 'ancient':18 'confront':14 'epic':4 'girl':11 '…
9ALABAMA DEVILA Thoughtful Panorama of a Database Administrator And a Mad…20061NULL32.9911421.99PG-132022-09-10 16:46:03.905+00:00['Trailers', 'Deleted Scenes']'administr':9 'alabama':1 'boat':23 'databas':8 'devil':2 '…
10ALADDIN CALENDARA Action-Packed Tale of a Man And a Lumberjack who must Rea…20061NULL64.996324.99NC-172022-09-10 16:46:03.905+00:00['Trailers', 'Deleted Scenes']'action':5 'action-pack':4 'aladdin':1 'ancient':20 'calend…
11ALAMO VIDEOTAPEA Boring Epistle of a Butler And a Cat who must Fight a Pas…20061NULL60.9912616.99G2022-09-10 16:46:03.905+00:00['Commentaries', 'Behind the Scenes']'alamo':1 'bore':4 'butler':8 'cat':11 'chef':17 'convent':…
12ALASKA PHANTOMA Fanciful Saga of a Hunter And a Pastry Chef who must Vanq…20061NULL60.9913622.99PG2022-09-10 16:46:03.905+00:00['Commentaries', 'Deleted Scenes']'alaska':1 'australia':19 'boy':17 'chef':12 'fanci':4 'hun…
Synthetic database · 12 of 1,000 rows
1INSECTS STONEThe campaign code was forwarded to the team on 2023-07-27 a…20061NULL60.998620.99PG2022-09-10 16:46:03.905+00:00['User pending açıklama', 'Bölge hatırlatma road', 'Bölge g…'energy' 'message' 'supplier'
2PINOCCHIO SIMONThe contract draft was cancelled with manager approval at 1…20061NULL34.994812.99G2022-09-10 16:46:03.905+00:00['Daily active market', 'Delivery shared kişi']'current' 'office' 'shop'
3PSYCHO SHRUNKThe subscription was approved after the payment was approve…20061NULL72.995018.99NC-172022-09-10 16:46:03.905+00:00['Updated port branch']'açık' 'firma' 'statement'
4SWEET BROTHERHOODThe user account was postponed automatically at 14:59.20061NULL52.9911726.99G2022-09-10 16:46:03.905+00:00['Morning tutar shop', 'Total available supplier', 'Branch …'center' 'hatırlatma' 'iş'
5MATRIX SNOWMANThe customer request was approved after the payment was app…20061NULL62.9913022.99G2022-09-10 16:46:03.905+00:00['Public user available', 'Complete approval closed', 'Supp…'delivery' 'schedule' 'spring'
6REAR TRADINGThe refund request was updated after the payment was approv…20061NULL32.9916917.99PG2022-09-10 16:46:03.905+00:00['Office charge invoice']'harbor' 'primary' 'public'
7THEORY MERMAIDThe payment plan was completed at 17:43.20061NULL64.996228.99PG-132022-09-10 16:46:03.905+00:00['Kalem vehicle approval', 'Yol report branch field', 'Gönd…'bölge' 'offer' 'valley'
8BILKO ANONYMOUSThe station connection was verified with reference 322144.20061NULL64.995415.99R2022-09-10 16:46:03.905+00:00['Teslim müşteri sokak', 'Sokak note schedule', 'Tedarik we…'depo' 'hazır' 'service' 'shop'
9SUNDANCE INVASIONThe vehicle record was approved with reference 641143.20061NULL32.9911421.99PG-132022-09-10 16:46:03.905+00:00['Account forest ilçe', 'Delivery ad açıklama', 'Active inv…'daily' 'fatura' 'iş' 'offer'
10MYSTIC TRUMANThe campaign code was created after the site visit.20061NULL64.996324.99NC-172022-09-10 16:46:03.905+00:00['Note start work tutar', 'Merkez morning note user', 'East…'durum' 'open' 'sipariş' 'yol'
11TROOPERS METALThe address was approved. Additional documents are pending.20061NULL60.9912616.99G2022-09-10 16:46:03.905+00:00['Gün teslim payment']'account' 'not' 'primary'
12GROOVE FICTIONThe user account was approved with reference 112864. The de…20061NULL60.9913622.99PG2022-09-10 16:46:03.905+00:00['Daily delivery schedule']'bridge' 'mail' 'workshop'

Column by column

Each figure is computed from all rows of both databases in the same way. S is the source, Y the synthetic copy. Difference runs from 0 (same distribution) to 1 (no overlap): Kolmogorov-Smirnov for numbers and times, total variation for columns with few values. Personal columns are meant to differ, so they show how many values also appear in the source instead. Lyrebird draws names from built-in lists, not from the source, so common names can match.

Column Model read it as How it was generated Empty Distinct Range or length Most common Difference
film_idinteger record key New key values S 0%
Y 0%
S 1,000
Y 1,000
S 1 → 1000
Y 1 → 1000
S —
Y —
—
titletext title name Source values, at measured frequencies S 0%
Y 0%
S 1,000
Y 629
S 14.2 chars avg
Y 14.3 chars avg
S —
Y —
—
descriptiontext free text New text in the measured format S 0%
Y 0%
S 1,000
Y 996
S 93.8 chars avg
Y 64.9 chars avg
S —
Y —
—
release_yearpublic.year date part Kept from the source as reference data S 0%
Y 0%
S 1
Y 1
S 2006 → 2006
Y 2006 → 2006
S 2006 100%
Y 2006 100%
0 KS
language_idinteger record key Foreign key, from the measured relationship S 0%
Y 0%
S 1
Y 1
S 1 → 1
Y 1 → 1
S 1 100%
Y 1 100%
0 KS
original_language_idinteger record key Foreign key, from the measured relationship S 100%
Y 100%
S 0
Y 0
S —
Y —
S —
Y —
—
rental_durationsmallint duration Kept from the source as reference data S 0%
Y 0%
S 5
Y 5
S 3 → 7
Y 3 → 7
S 6 21.2% · 3 20.3% · 4 20.3% · 7 19.1% · 5 19.1%
Y 6 21.2% · 3 20.3% · 4 20.3% · 7 19.1% · 5 19.1%
0 KS
rental_ratenumeric(4,2) monetary amount Kept from the source as reference data S 0%
Y 0%
S 3
Y 3
S 0.99 → 4.99
Y 0.99 → 4.99
S 0.99 34.1% · 4.99 33.6% · 2.99 32.3%
Y 0.99 34.1% · 4.99 33.6% · 2.99 32.3%
0 KS
lengthsmallint duration Kept from the source as reference data S 0%
Y 0%
S 140
Y 140
S 46 → 185
Y 46 → 185
S —
Y —
0 KS
replacement_costnumeric(5,2) monetary amount Kept from the source as reference data S 0%
Y 0%
S 21
Y 21
S 9.99 → 29.99
Y 9.99 → 29.99
S 20.99 5.7% · 12.99 5.5% · 22.99 5.5% · 21.99 5.5% · 13.99 5.5% · 27.99 5.3%
Y 20.99 5.7% · 12.99 5.5% · 22.99 5.5% · 21.99 5.5% · 13.99 5.5% · 27.99 5.3%
0 KS
ratingpublic.mpaa_rating status enum Kept from the source as reference data S 0%
Y 0%
S 5
Y 5
S 2.9 chars avg
Y 2.9 chars avg
S PG-13 22.3% · NC-17 21% · R 19.5% · PG 19.4% · G 17.8%
Y PG-13 22.3% · NC-17 21% · R 19.5% · PG 19.4% · G 17.8%
0 TVD
last_updatetimestamp with time zone lifecycle timestamp Times from the measured distribution S 0%
Y 0%
S 1
Y 1
S 2022-09-10 16:46:03.905+00:00 → 2022-09-10 16:46:03.905+00:00
Y 2022-09-10 16:46:03.905+00:00 → 2022-09-10 16:46:03.905+00:00
S 2022-09-10 16:46:03.905795+00:00 100%
Y 2022-09-10 16:46:03.905795+00:00 100%
0 KS
special_featurestext[] status enum Allowed values of the column type S 0%
Y 0%
S 15
Y 1,000
S 35.4 chars avg
Y 47.1 chars avg
S ['Trailers', 'Commentaries', 'Behind th… 7.9% · ['Trailers'] 7.2% · ['Trailers', 'Commentaries'] 7.2% · ['Trailers', 'Behind the Scenes'] 7.2% · ['Deleted Scenes', 'Behind the Scenes'] 7.1% · ['Commentaries', 'Behind the Scenes'] 7%
Y —
1 TVD
fulltexttsvector generic value Allowed values of the column type S 0%
Y 0%
S 1,000
Y 994
S 133.5 chars avg
Y 26.1 chars avg
S —
Y —
—