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Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
Creating extensionsYou can create user-defined data types, routines, access methods, and other database objects to suit your needs. You can use application programming interfaces to write user-defined routines and applications that access data in HCL OneDB™ databases.
DataBlade® API Function ReferenceThe HCL OneDB™ DataBlade® API Function Reference describes the DataBlade® API functions and the subset of functions that the DataBlade® API supports.
Function descriptionsThis section gives comprehensive reference information about the functions that are valid within DataBlade® API modules. It lists the function descriptions in alphabetical order, with syntax, usage information, and return values for the functions.
The mi_typeid_equals() functionThe mi_typeid_equals() function determines whether two type identifiers represent the same data type.

The mi_typeid_equals() function

The mi_typeid_equals() function determines whether two type identifiers represent the same data type.

Syntax

mi_boolean mi_typeid_equals(typeid1_ptr, typeid2_ptr)
   MI_TYPEID *typeid1_ptr;
   MI_TYPEID *typeid2_ptr;

typeid1_ptr: A pointer to the type identifier of the first data type.
typeid2_ptr: A pointer to the type identifier of the second data type.


Valid in client LIBMI application?	Valid in user-defined routine?
Yes	Yes

Usage

The mi_typeid_equals() function determines if the data types in the type identifiers that are specified by typeid1_ptr and typeid2_ptr are the same.

Important: The type identifier is an opaque structure. Do not compare two type identifiers directly. Instead, use mi_typeid_equals() to determine if two type identifiers are equal.

Return values

MI_TRUE: The two type identifiers are for the same data type.
MI_FALSE: The two type identifiers are not for the same data type.