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ast-project/part1/results/2/bug_92d0f8ef-4ffa-47f4-8643-a313a63e21f2_logic.md
2026-06-24 13:47:14 +02:00

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## Summary
<!--Explain briefly what goes wrong and explain why you believe this is a bug and not the intended behavior of SQLite (if it is not a crash).-->**No review yet**
## Minimized query
```sql
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
ATTACH DATABASE ':memory:' AS aux33;
ATTACH DATABASE ':memory:' AS aux74;
.nullvalue 232327d3-536b-41de-a764-a6301986aeab
CREATE TABLE [T] (
A VARCHAR(upper('你好')) PRIMARY KEY,
B VARCHAR(json_array()) NOT NULL,
C INTEGER,
UNIQUE (B, C)
);
INSERT INTO T VALUES ('a', 'p', -degrees(2147483648));
INSERT INTO T VALUES ('b', 'q', 700);
INSERT INTO T VALUES ('c', 'r', 0);
INSERT INTO T VALUES ('d', 's', 2147483647);
INSERT INTO T VALUES ('e', 't', -1);
INSERT INTO T VALUES ('f', 'u', 1);
SELECT * FROM T WHERE NOT NOT (C BETWEEN -1000 AND 1000) ORDER BY C ASC;
SELECT * FROM T;
PRAGMA vdbe_debug = 0;
ALTER TABLE T DROP COLUMN B;
CREATE TRIGGER IF NOT EXISTS trg_T_6262 AFTER UPDATE OF A ON T FOR EACH ROW BEGIN SELECT RAISE(FAIL, 'no'); END;
CREATE TRIGGER IF NOT EXISTS trg_T_1635 AFTER UPDATE OF A ON T FOR EACH ROW BEGIN SELECT RAISE(FAIL, 'no'); END;
SELECT AVG(C) FROM T;
ALTER TABLE T RENAME COLUMN B TO B_r9915;
DETACH DATABASE aux74;
DETACH DATABASE aux33;
```
## Actual output
```sql
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
```sql
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
```
```