*
* The prepare/execute model in DB is mostly borrowed from the ODBC
* extension, in a query the "?" character means a scalar parameter.
- * There is one extension though, a "*" character means an opaque
+ * There is one extension though, a "&" character means an opaque
* parameter. An opaque parameter is simply a file name, the real
* data are in that file (useful for stuff like putting uploaded files
* into your database).