| ABSTRACT TABLE | core.table1
| id             | AUTOINCREMENT   | PK    |   | |
| name           | TEXT            |       |   | |

| TABLE     | core.table2
| id        | AUTOINCREMENT   | PK    |   | |
| name      | TEXT            |       |   | |
| refer     | FK core.table2  |       |   | |

| TABLE     | data.table1
| id        | AUTOINCREMENT   | PK    |   | |
| name      | TEXT            |       |   | |
| refer     | FK data.table2  |       |   | |

| TABLE     | data.table2
| id        | AUTOINCREMENT   | PK    |   | |
| name      | TEXT            |       |   | |
| refer     | FK data.table1  |       |   | |

| TABLE     | table3
| id        | AUTOINCREMENT   | PK    |   | |
| name      | TEXT            |       |   | |
