ast-project/part1/results/3/bug_479954ca-5bc7-4378-977d-c6b7698bf5bb_logic.md

Summary

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Minimized query

PRAGMA checkpoint_fullsync = FALSE;
BEGIN EXCLUSIVE TRANSACTION;
ATTACH DATABASE ':memory:' AS aux85;
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
UPDATE t1 SET d = 'x' WHERE d IS NOT NULL;
CREATE TRIGGER IF NOT EXISTS trg_t1_5828 AFTER UPDATE OF d ON t1 BEGIN SELECT RAISE(FAIL, 'no'); END;
SELECT TOTAL(a) FROM t1;
PRAGMA mmap_size = 50000000;
DETACH DATABASE aux85;
SELECT * FROM t1 WHERE c > (SELECT AVG(c) FROM t1);
COMMIT TRANSACTION;
ALTER TABLE t1 RENAME TO t1_r4016;
INSERT INTO t1 DEFAULT VALUES;
PRAGMA checkpoint_fullsync = FALSE;
BEGIN EXCLUSIVE TRANSACTION;
ATTACH DATABASE ':memory:' AS aux85;
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
UPDATE t1 SET d = 'x' WHERE d IS NOT NULL;
CREATE TRIGGER IF NOT EXISTS trg_t1_5828 AFTER UPDATE OF d ON t1 BEGIN SELECT RAISE(FAIL, 'no'); END;
SELECT TOTAL(a) FROM t1;
PRAGMA mmap_size = 50000000;
DETACH DATABASE aux85;
SELECT * FROM t1 WHERE c > (SELECT AVG(c) FROM t1);
COMMIT TRANSACTION;
ALTER TABLE t1 RENAME TO t1_r4016;
INSERT INTO t1 DEFAULT VALUES;
PRAGMA checkpoint_fullsync = FALSE;
BEGIN EXCLUSIVE TRANSACTION;
ATTACH DATABASE ':memory:' AS aux85;
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
UPDATE t1 SET d = 'x' WHERE d IS NOT NULL;
CREATE TRIGGER IF NOT EXISTS trg_t1_5828 AFTER UPDATE OF d ON t1 BEGIN SELECT RAISE(FAIL, 'no'); END;
SELECT TOTAL(a) FROM t1;
PRAGMA mmap_size = 50000000;
DETACH DATABASE aux85;
SELECT * FROM t1 WHERE c > (SELECT AVG(c) FROM t1);
COMMIT TRANSACTION;
ALTER TABLE t1 RENAME TO t1_r4016;
INSERT INTO t1 DEFAULT VALUES;
PRAGMA checkpoint_fullsync = FALSE;
BEGIN EXCLUSIVE TRANSACTION;
ATTACH DATABASE ':memory:' AS aux85;
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
UPDATE t1 SET d = 'x' WHERE d IS NOT NULL;
CREATE TRIGGER IF NOT EXISTS trg_t1_5828 AFTER UPDATE OF d ON t1 BEGIN SELECT RAISE(FAIL, 'no'); END;
SELECT TOTAL(a) FROM t1;
PRAGMA mmap_size = 50000000;
DETACH DATABASE aux85;
SELECT * FROM t1 WHERE c > (SELECT AVG(c) FROM t1);
COMMIT TRANSACTION;
ALTER TABLE t1 RENAME TO t1_r4016;
INSERT INTO t1 DEFAULT VALUES;

ALTER TABLE t1 RENAME TO t1_r1422;

Actual output

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

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

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