ast-project/part1/results/2/bug_c3e7d633-cc44-49b2-97bd-e6be43a6022d_logic.md

Summary

**No review yet**

Minimized query

PRAGMA cache_spill = 0;
CREATE TABLE main.artists (id integer NOT NULL PRIMARY KEY AUTOINCREMENT, name varchar(255));
CREATE TABLE albums ( id integer NOT NULL PRIMARY KEY AUTOINCREMENT, name varchar(255), artist_id integer REFERENCES artists);
INSERT INTO artists (name) VALUES ('Ar');
INSERT INTO albums (name, artist_id) VALUES ('Al', 1);
SELECT artists.* FROM artists INNER JOIN artists AS b ON (b.id = artists.id) WHERE (artists.id IN ( SELECT albums.artist_id FROM albums WHERE ((name = 'Al') AND (albums.artist_id IS NOT NULL) AND (albums.id IN ( SELECT id FROM ( SELECT albums.id, row_number() OVER (PARTITION BY albums.artist_id ORDER BY name) AS x FROM albums WHERE (name = 'Al') ) AS t1 WHERE (x = 1) )) AND (albums.id IN (1, 2))) ));

CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c INT, d INT);
INSERT INTO t1 VALUES (1, 'Wernher', 10, 100);
INSERT INTO t1 VALUES (2, 'von', 20, 200);
INSERT INTO t1 VALUES (3, 'Braun', 30, 300);

CREATE INDEX t1bc ON t1(b, c);

PRAGMA writable_schema = ON;

.imposter t1bc t2

SELECT * FROM t2;

SELECT b, c FROM t1 ORDER BY b, c;

.quit
ANALYZE;
REINDEX albums;
REINDEX artists;
SELECT AVG(id) FROM artists;
ALTER TABLE t1 DROP COLUMN c;
DELETE FROM t1 WHERE 0 RETURNING *;

Actual output

1|Ar
CREATE TABLE "t2"("b","c","_ROWID_",PRIMARY KEY("b","c","_ROWID_"))WITHOUT ROWID;
WARNING: writing to an imposter table will corrupt the "t1bc" index!
Braun|30|3
Wernher|10|1
von|20|2
Braun|30
Wernher|10
von|20

Expectation

1|Ar
CREATE TABLE "t2"("b","c","_ROWID_",PRIMARY KEY("b","c","_ROWID_"))WITHOUT ROWID;
Braun|30|3
Wernher|10|1
von|20|2
Braun|30
Wernher|10
von|20

Flag