Guides
`read_blob`
The `read_blob` table function reads from the selected source(s) to a `BLOB`:  
```sql
SELECT size, content, filename
FROM read_blob('test/sql/table_function/files/*');
```  
| size |                              content                         |                filename                 |
|-----:|--------------------------------------------------------------|-----------------------------------------|
| 178  |  PK\x03\x04\x0A\x00\x00\x00\x00\x00\xACi=X\x14t\xCE\xC7\x0A… | test/sql/table_function/files/four.blob |
| 12   | Hello World!                                                 | test/sql/table_function/files/one.txt   |
| 2    | 42                                                           | test/sql/table_function/files/three.txt |
| 10   | F\xC3\xB6\xC3\xB6 B\xC3\xA4r                                 | test/sql/table_function/files/two.txt   |