unld_func statement (specification of constructor parameter reverse creation function)

The unld_func statement specifies a constructor parameter reverse creation function that reverses the creation of data values for abstract data type during an unload operation.

Criterion: Specify the unld_func statement to reorganize a table with an abstract data type provided by a plug-in that has an unloading facility.

Rules

You can specify as many unld_func statements as there are abstract data types defined for table columns.
If you are specifying the unld_func statement along with -k rorg, also specify the reld_func statement.

Organization of this subsection: (1) Format; (2) Explanation

(1) Format

 
unld_func type=[authorization-identifier.]abstract-data-type-name,
       func=function-name (argument-type[,argument-type...])
       [,func=function-name (argument-type[,argument-type...])...]

(2) Explanation

(a) type=[authorization-identifier.]abstract-data-type-name

Specifies the authorization identifier and name of the abstract data type.

Rules

If the authorization identifier is omitted, the authorization identifier of the user who defined the abstract data type (normally MASTER) is assumed.
If the authorization identifier or abstract data type name contains a lowercase letter or a space, enclose it in double quotation marks (").

(b) func=function-name (argument-type[,argument-type...])

Specifies the name and argument type of the constructor parameter reverse creation function. For details about the name and argument type of a constructor parameter reverse creation function, see the applicable plug-in manual.

function-name: Specify the name of the constructor parameter reverse creation function.

argument-type

Specify the data type of the argument of the constructor parameter reverse creation function. Specify the argument's data type in the following format:

Specification method	Remarks
integer	INT32
smallint	INT16
char nchar mchar	CHAR8
varchar nvarchar mvarchar	p_pdb_varchar_t
float	DOUBLE64
smallflt	REAL64
blob	BLOB
abstract-data-type-name	--

8.9.13 unld_func statement (specification of constructor parameter reverse creation function)

(1) Format

(2) Explanation

(a) type=[authorization-identifier.]abstract-data-type-name

(b) func=function-name (argument-type[,argument-type...])