The destroy() function performs any processing
necessary before the database server removes a row that contains opaque
data. The database server calls the destroy() function
just before it removes the internal representation of an opaque type
from disk. For example, when a client application issues a DELETE
or DROP TABLE statement, the database server calls the destroy() function
before it deletes an opaque-type value from a column.
The following figure shows when the database server executes the destroy() function. Figure 1: Execution of the destroy() support
function
The destroy() function takes as an opaque data
type. It does not return a value.
