## 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
CREATE TABLE T (
  a TEXT,
  b TEXT
);
INSERT INTO T VALUES ('a','2020-01-01'), ('b','2026-01-01');
SELECT a,
CAST(
  (julianday('now')-julianday(b))/concat('text', 123, NULL)
  AS INTEGER
) AS c
FROM T;
ALTER TABLE T DROP COLUMN b;
```

## Actual output

```sql
Parse error near line 7: no such function: concat
  SELECT a, CAST(   (julianday('now')-julianday(b))/concat('text', 123, NULL)   
                                      error here ---^
```

## Expectation

```sql

```

## Flag

```

```

