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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
+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', /* if(0, {v}, 0, {v}) */ 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
+((((PRAGMA)))) application_id = ',';
+CREATE TABLE T (
+  a INTEGER,
+  b REAL
+);
+INSERT INTO T VALUES (-NULL,json_valid(1.5, 6)), (2,-7.25), (3,0.0);
+SELECT a,b FROM T WHERE NOT NOT (a >= 2) ORDER BY b;
+PRAGMA read_uncommitted = FALSE;
+WITH cte AS (SELECT b FROM T UNION SELECT b FROM T) SELECT * FROM cte;
+SELECT COUNT(*)	FILTER (WHERE b IS NOT NULL), SUM(rowid) FILTER (WHERE b > 0), COUNT(*) FILTER (WHERE 1=0), COUNT(*) FILTER (WHERE 1=1), COUNT(*) FILTER (WHERE NULL), AVG(b) FILTER (WHERE b > 0 AND b < 100), COUNT(*) FILTER (WHERE typeof(b) = "text") FROM T;
+
+SELECT COUNT(*) FROM T;
+INSERT INTO T VALUES (1, 'x') ON CONFLICT(a) DO UPDATE SET a = excluded.a, b = excluded.b;
+SELECT * FROM T;
+PRAGMA query_only;
+ALTER TABLE T RENAME TO T_r407;
+UPDATE T SET a = NULL WHERE 1;
+ALTER TABLE T RENAME COLUMN b TO b_r5239;
+ALTER TABLE T DROP COLUMN b;
+ALTER TABLE T ADD COLUMN extra_7854 DATETIME DEFAULT NULL;
+SELECT * FROM (SELECT * FROM t1) AS t1 JOIN (SELECT * FROM t1) AS t2 ON t1.b = t2.b;
+```
+
+## 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
+
+```
+
+```
+