## 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
.dump main
PRAGMA secure_delete = YES;
CREATE TABLE T (
  a INTEGER,
  b TEXT,
  c INTEGER
);
INSERT INTO T VALUES (octet_length(123),'a',NULL), (2,'b',1), (3,'c',2);
WITH RECURSIVE d(a,b,c,e) AS (
  SELECT *,1 FROM T WHERE c IS NULL
  UNION ALL
  SELECT T.a,T.b,T.c,d.e+1
  FROM T JOIN d ON T.c=d.a
)
SELECT * FROM d;
ALTER TABLE T ADD COLUMN extra_6942 NUMERIC DEFAULT 0;
```

## Actual output

```sql
PRAGMA foreign_keys=OFF;
BEGIN TRANSACTION;
COMMIT;
1
```

## Expectation

```sql

```

## Flag

```

```