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.
