## ✅ Eugene trace report
Script name: `examples/E9/bad/1.sql`
### ✅ Statement number 1 for 10ms
```sql
-- 1.sql
create table authors (
id integer generated always as identity
primary key,
name text not null
)
```
#### Locks at start
No locks held at the start of this statement.
#### New locks taken
No new locks taken by this statement.
## ❌ Eugene trace report
Script name: `examples/E9/bad/2.sql`
### ❌ Statement number 1 for 10ms
```sql
-- 2.sql
alter table authors add column email text
```
#### Locks at start
No locks held at the start of this statement.
#### New locks taken
| `public` | `authors` | `AccessExclusiveLock` | Table | 1 | ❌ | 10 |
#### Triggered rules
##### `E9`: [Taking dangerous lock without timeout](https://kaveland.no/eugene/hints/E9/)
The statement took `AccessExclusiveLock` on the Table `public.authors` without a timeout. It blocks `SELECT`, `FOR UPDATE`, `FOR NO KEY UPDATE`, `FOR SHARE`, `FOR KEY SHARE`, `UPDATE`, `DELETE`, `INSERT`, `MERGE` while waiting to acquire the lock.