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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
+.once log.txt
+PRAGMA automatic_index = OFF;
+.save output.db
+ATTACH DATABASE '' || (':memory:') AS aux86;
+ATTACH DATABASE ':memory:' AS aux18;
+SAVEPOINT sp5997;
+.bail off
+ATTACH DATABASE ':memory:' AS aux0;
+.dump
+CREATE VIRTUAL TABLE t0 USING fts4("x", "y", "z");
+-- inf
+
+DROP TABLE t0;
+DETACH DATABASE aux0;
+ROLLBACK TO sp5997;
+RELEASE sp5997;
+DETACH DATABASE aux18;
+PRAGMA legacy_alter_table = TRUE;
+DETACH DATABASE aux86;
+CREATE TABLE T (
+  a TEXT,
+  b REAL
+);
+INSERT INTO T VALUES ('a',likelihood(NULL, 0.5)), ('b',-200.5), ('c',9e999);
+SELECT a,b,
+LEAD(b,1) OVER (ORDER BY b DESC) AS c,
+NTILE(2) OVER (ORDER BY b DESC) AS d FROM T;
+CREATE  INDEX IF NOT EXISTS idx_T_1192 ON T(a) WHERE a > 0;
+SELECT * FROM T WHERE b NOT IN (SELECT b FROM T);
+SELECT GROUP_CONCAT(a) FROM T;
+CREATE UNIQUE  INDEX IF NOT EXISTS idx_T_6996 ON T(lower(a));
+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
+ALTER TABLE T RENAME COLUMN b TO b_r990;
+CREATE UNIQUE  INDEX IF NOT EXISTS idx_T_1324 ON T(lower(a)) WHERE a > 0;
+DROP TRIGGER IF EXISTS T;
+SELECT GROUP_CONCAT(a) OVER (PARTITION BY a ORDER BY a RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING EXCLUDE NO OTHERS) FROM T;
+INSERT INTO t1 VALUES (NULL, NULL, 1, NULL) ON CONFLICT(a) DO UPDATE SET a = excluded.a, b = excluded.b, c = excluded.c;
+INSERT INTO T SELECT * FROM T;
+INSERT INTO T SELECT * FROM T;
+```
+
+## Actual output
+
+```sql
+PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+COMMIT;
+c|Inf|-200.5|1
+b|-200.5||1
+a|||2
+a,b,c
+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
+PRAGMA foreign_keys=OFF;
+BEGIN TRANSACTION;
+COMMIT;
+c|Inf|-200.5|1
+b|-200.5||1
+a|||2
+a,b,c
+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
+
+```
+
+```
+