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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
+PRAGMA journal_mode;
+BEGIN DEFERRED TRANSACTION;
+CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT, c INT, d INT);
+INSERT INTO t1 VALUES (asin(changes()), 'Wernher', length(instr(NULL, substr(if('', max(10, 1, 2, 3), 10), 1))), 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
+.dbconfig fk on
+.progress concat_ws(NULL, 'a', 'b')
+ATTACH DATABASE '' || (':memory:') AS aux92;
+CREATE TABLE T (
+  A VARCHAR(10) PRIMARY KEY,
+  B VARCHAR(15),
+  C BIGINT NOT NULL,
+  UNIQUE (B, C)
+);
+INSERT INTO T VALUES ('a', 'p', 3000);
+INSERT INTO T VALUES ('b', 'q', 9223372036854775807);
+INSERT INTO T VALUES ('c', 'r', 1700);
+INSERT INTO T VALUES ('e', 'q', -9223372036854775808);
+INSERT INTO T VALUES ('f', 'r', 0);
+SELECT B, COUNT(*) AS D, SUM(C) AS E, AVG(C) AS F FROM T GROUP BY B HAVING SUM(C) > 0;
+
+SELECT COUNT(*) FROM T;
+VACUUM main;
+DETACH DATABASE aux92;
+ANALYZE T;
+ANALYZE T;
+DROP TABLE IF EXISTS T;
+
+SELECT COUNT(*) FROM T;
+DROP VIEW IF EXISTS T;
+INSERT INTO T SELECT * FROM T;
+PRAGMA cell_size_check = OFF;
+INSERT INTO T VALUES (NULL, 1, 'x') ON CONFLICT(A) DO UPDATE SET A = excluded.A, B = excluded.B, C = excluded.C;
+DROP TRIGGER IF EXISTS T;
+ALTER TABLE T ADD COLUMN extra_8822 VARCHAR(255) DEFAULT CURRENT_TIMESTAMP;
+SELECT LEAD(B) OVER (ORDER BY B ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) FROM T;
+INSERT INTO T VALUES (NULL, NULL, NULL);
+ALTER TABLE T RENAME TO T_r4159;
+SELECT COUNT(*) FILTER (WHERE d IS NOT NULL), SUM(rowid) FILTER (WHERE d > 0), COUNT(*) FILTER (WHERE 1=0), COUNT(*) FILTER (WHERE 1=1), COUNT(*) FILTER (WHERE NULL), AVG(d) FILTER (WHERE d > 0 AND d < 100), COUNT(*) FILTER (WHERE typeof(d) = "text") FROM t1;
+COMMIT TRANSACTION;
+UPDATE t1 SET c = c + 1 WHERE c BETWEEN 0 AND 100;
+ALTER TABLE t1 ADD COLUMN extra_369 CLOB COLLATE RTRIM;
+ALTER TABLE t1 RENAME TO t1_r8858;
+SELECT * FROM t1 WHERE c IN (SELECT c FROM t1 WHERE 1/0 = 0);SELECT * FROM t1 WHERE c IN (SELECT c FROM t1 LIMIT -1);
+ALTER TABLE T RENAME TO T_r1073;
+INSERT OR ROLLBACK INTO T VALUES ('x', 'x', NULL);
+SELECT SUM(d) OVER (ORDER BY d ROWS BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING EXCLUDE GROUP) FROM t1;
+
+SELECT COUNT(*) FROM T;
+ALTER TABLE T ADD COLUMN extra_6831 NCHAR(55) UNIQUE;
+SELECT MAX(B) FROM T;
+```
+
+## Actual output
+
+```sql
+memory
+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
+von|20|2
+Braun|30
+von|20
+```
+
+## Expectation
+
+```sql
+
+```
+
+## Flag
+
+```
+-batch
+```
+